/* Persistent navigation for the full-screen reference layouts. */
.master-nav-toggle{display:grid;place-items:center;width:42px;height:42px;margin-right:17px;border:1px solid #314979;border-radius:10px;background:#142248;color:#c7d7ff;font-size:17px;cursor:pointer}
.master-nav-toggle:hover{border-color:#8a6aff;color:#fff;background:#2b2362}
.master-global-nav{position:fixed;z-index:1005;top:0;bottom:0;left:0;width:280px;display:grid;align-content:start;gap:4px;border-right:1px solid #394d8b;padding:20px;background:rgba(10,18,45,.98);box-shadow:20px 0 50px rgba(0,0,0,.36);transform:translateX(-103%);transition:transform .25s ease}
.global-nav-open .master-global-nav{transform:translateX(0)}
.master-global-nav:after{content:"";position:fixed;z-index:-1;inset:0 -500vw 0 100%;background:rgba(0,0,0,.38);opacity:0;pointer-events:none;transition:opacity .25s ease}
.global-nav-open .master-global-nav:after{opacity:1;pointer-events:auto}
.master-global-nav header{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px;border-bottom:1px solid #2a3e6d;padding:5px 6px 18px;color:#fff}
.master-global-nav header b{font-size:20px}
.master-global-nav header button{border:0;border-radius:8px;padding:7px 10px;background:#1b2a52;color:#c5d3f2;font-size:15px;cursor:pointer}
.master-global-nav>button{display:flex;align-items:center;gap:12px;border:1px solid transparent;border-radius:10px;padding:12px;background:transparent;color:#b7c7e7;text-align:left;font:600 14px inherit;cursor:pointer}
.master-global-nav>button:hover{border-color:#4d4e9b;background:#271b65;color:#fff}
.master-global-nav>button i{width:20px;color:#a48dff}
@media(max-width:720px){.master-nav-toggle{width:38px;height:38px;margin-right:11px}
.master-global-nav{width:250px;padding:15px}
}


/* Faithful StudyHub screen layer: assets and layouts follow the supplied references. */
body{background-color:#050a1b;background-image:radial-gradient(circle at 65% 18%,rgba(64,49,155,.18),transparent 28%),radial-gradient(circle at 84% 78%,rgba(26,89,161,.12),transparent 23%)}

.layout{padding-top:34px}
.reference-hero{position:relative;min-height:154px;overflow:hidden;border:1px solid #3b3f91;border-radius:18px;margin:22px 0 18px;background:#0d1734}
.reference-hero:before{content:"";position:absolute;inset:0;background:url("assets/study-hero-robot.png") right center/auto 150% no-repeat;opacity:.9}
.reference-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#10183a 0%,rgba(11,20,48,.93) 34%,rgba(9,18,44,.22) 68%,rgba(8,15,35,.05) 100%)}

.reference-hero-copy{position:relative;z-index:1;max-width:58%;padding:23px 26px}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;color:#c3adff;font-weight:800}
.hero-kicker i{color:#8d70ff}
.reference-hero h2{margin:8px 0 5px;color:#fff;font-size:23px;line-height:1.3}
.reference-hero p{margin:0;color:#c3cbea}
.reference-hero .btn{margin-top:16px}
.hero-note{position:absolute;z-index:1;right:34px;bottom:24px;color:#d0c0ff;font-size:13px;line-height:1.7;text-align:center;transform:rotate(-8deg)}

.library-hero{min-height:185px;border-color:#263b78;background:#0c1735}
.library-hero:before{opacity:.75}
.library-hero h2{font-size:28px}
.hero-feature-row{position:relative;z-index:1;display:flex;gap:8px;margin-top:18px}
.hero-feature-row span{border:1px solid #334c91;border-radius:8px;padding:7px 10px;background:rgba(16,29,67,.8);color:#d4defe;font-size:12px}

.library-hero:before{background-image:url("assets/library-hero-v1.png");background-size:cover;background-position:right center;opacity:.96}
.library-hero:after{background:linear-gradient(90deg,#10183a 0%,rgba(11,20,48,.94) 37%,rgba(9,18,44,.18) 71%,rgba(8,15,35,.04) 100%)}

body[data-studyhub-view="home"] .page-heading{align-items:flex-start}
body[data-studyhub-view="home"] .dash-top{grid-template-columns:1.12fr .88fr;margin-top:0}
body[data-studyhub-view="home"] .task-card{min-height:286px}
body[data-studyhub-view="home"] .quick-card{min-height:286px;padding-right:180px}
body[data-studyhub-view="home"] .dash-bottom{grid-template-columns:1fr 1fr 1.25fr}

body[data-studyhub-view="home"] .dash-top:has(.agent-process-card){grid-template-columns:1.12fr .92fr .94fr}
body[data-studyhub-view="home"] .dash-top:has(.agent-process-card) .quick-card{padding-right:88px}
.agent-process-card{position:relative;min-height:286px;padding:21px;overflow:hidden}
.agent-process-head{display:flex;align-items:center;justify-content:space-between;gap:9px}
.agent-process-head h2{font-size:17px}
.agent-process-head h2 i{color:#a389ff;margin-right:7px}
.agent-steps{position:relative;z-index:1;display:grid;gap:13px;margin-top:19px}
.agent-step{display:flex;align-items:center;gap:10px;color:#8ea0cf}
.agent-step>i{display:grid;place-items:center;width:29px;height:29px;border:1px solid #43527d;border-radius:50%;background:#121f44;font-size:13px}
.agent-step b,.agent-step small{display:block}
.agent-step b{font-size:13px;color:#cbd8f5}
.agent-step small{margin-top:2px;font-size:11px;color:#788ab8}
.agent-step.complete>i{border-color:#4fdfba;background:#1c9c7e;color:#fff;box-shadow:0 0 13px rgba(54,230,181,.3)}
.agent-step.complete b{color:#e6f6ff}
.agent-step.active>i{border-color:#8d71ff;color:#b9a7ff;animation:reference-spin 1.6s linear infinite}
.agent-step:has(+ .agent-step):after{content:"";position:absolute;left:14px;top:29px;height:14px;border-left:2px solid #334b7d}
.agent-mini-art{position:absolute;right:-23px;bottom:-24px;width:138px;opacity:.42;pointer-events:none}
.agent-mini-art img{display:block;width:100%;height:auto}
@keyframes reference-spin{to{transform:rotate(360deg)}
}

body[data-studyhub-view="knowledge"] .two-col{grid-template-columns:1.32fr .88fr;margin-top:0}
body[data-studyhub-view="knowledge"] .panel{min-height:482px}
body[data-studyhub-view="knowledge"] .dropzone{padding:30px}
body[data-studyhub-view="knowledge"] .note-preview{font-size:14px}

body[data-studyhub-view="graph"] .graph-stage{min-height:565px;background-image:radial-gradient(circle at 50% 47%,rgba(80,52,205,.16),transparent 28%),radial-gradient(circle at 22% 25%,rgba(34,113,255,.12),transparent 21%)}
body[data-studyhub-view="graph"] .graph-stage .node{box-shadow:0 0 22px rgba(109,73,255,.22)}
body[data-studyhub-view="graph"] .node.selected{transform:scale(1.2);box-shadow:0 0 35px rgba(236,97,132,.4)}

body[data-studyhub-view="graph"] .graph-stage .node{cursor:pointer;transition:transform .18s ease,box-shadow .18s ease}
body[data-studyhub-view="graph"] .graph-stage .node:hover,body[data-studyhub-view="graph"] .graph-stage .node:focus-visible{transform:scale(1.12);outline:0;box-shadow:0 0 30px rgba(133,100,255,.75)}

body[data-studyhub-view="practice"] .question-card{min-height:548px}
body[data-studyhub-view="practice"] .help-panel{background-image:url("assets/study-bot.png");background-position:right 30px bottom 32px;background-size:150px auto;background-repeat:no-repeat}
body[data-studyhub-view="practice"] .tutor-bubble{padding-right:28px}

body[data-studyhub-view="training"] .training-shell{overflow:hidden}
body[data-studyhub-view="training"] .training-question{min-height:360px}
body[data-studyhub-view="training"] .coach{background-image:url("assets/study-bot.png");background-position:right 18px bottom 18px;background-repeat:no-repeat;background-size:135px auto;padding-bottom:150px}

body[data-studyhub-view="report"] .report-hero-summary{min-height:162px;background-image:linear-gradient(90deg,rgba(11,22,53,.95),rgba(11,22,53,.42)),url("assets/study-hero-robot.png");background-position:center,right center;background-size:auto,cover;background-repeat:no-repeat}
body[data-studyhub-view="report"] .ai-summary{max-width:68%}

body[data-studyhub-view="planner"] .plan-grid{min-height:330px}
body[data-studyhub-view="planner"] .day{min-height:270px}
body[data-studyhub-view="tutor"] .avatar-stage{background-image:radial-gradient(circle at 50% 22%,rgba(102,73,244,.25),transparent 36%)}
body[data-studyhub-view="tutor"] .avatar-figure{width:210px;height:255px;border:0;background-image:url("assets/digital-tutor.png");background-size:cover;background-repeat:no-repeat}
body[data-studyhub-view="tutor"] .chat-panel{background-image:radial-gradient(circle at 70% 15%,rgba(93,63,237,.12),transparent 30%)}
body[data-studyhub-view="exam"] .exam-paper{min-height:610px}

@media(max-width:860px){.reference-hero{min-height:210px}
.reference-hero:before{background-size:auto 88%;background-position:right bottom}
.reference-hero:after{background:linear-gradient(90deg,#10183a 0%,rgba(11,20,48,.88) 67%,rgba(8,15,35,.2) 100%)}
.reference-hero-copy{max-width:85%;padding:22px 18px}
.reference-hero h2{font-size:20px}
.hero-note{display:none}
.hero-feature-row{flex-wrap:wrap}
body[data-studyhub-view="home"] .quick-card{padding-right:120px}
}



/* Material-detail screen, matching the document reader + analysis template. */
.detail-titlebar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:22px}
.detail-titlebar>div:first-child{display:flex;align-items:center;gap:14px}
.pdf-mark{display:grid;place-items:center;width:50px;height:50px;border-radius:10px;background:#e94f59;color:#fff;font-size:27px}
.detail-title-copy h1{margin:0;color:#fff;font-size:26px}
.detail-title-copy p{margin:7px 0 0;color:#94a3ca;font-size:13px}
.detail-title-copy p span{display:inline-block;margin-left:7px;border-radius:7px;padding:4px 7px;background:#18255a;color:#bcaaff}
.detail-actions{display:flex;gap:8px}
.detail-actions .btn{padding:9px 11px}
.detail-grid{display:grid;grid-template-columns:minmax(500px,.85fr) minmax(650px,1.15fr);gap:18px}
.pdf-reader{display:grid;grid-template-columns:112px 1fr;min-height:710px;overflow:hidden}
.pdf-thumbs{display:flex;flex-direction:column;gap:15px;padding:16px 14px;background:#0a1430;color:#b8c7ec;font-size:12px}
.pdf-thumbs>b{border-radius:8px;padding:8px;background:#2f2670;color:#d2c1ff;text-align:center}
.pdf-thumb{display:flex;flex-direction:column;justify-content:space-between;height:96px;border:1px solid #2d3e6d;border-radius:4px;padding:8px;background:#e9ebf3;color:#26324c;font-weight:800}
.pdf-thumb.active{box-shadow:0 0 0 3px #7957ff}
.pdf-thumb small{align-self:center}
.pdf-paper{position:relative;overflow:auto;margin:12px 12px 12px 0;padding:54px 52px;background:#fcfbf6;color:#292a33;font-family:"Noto Serif SC",serif;line-height:1.9}
.pdf-tools{position:absolute;top:0;left:0;right:0;padding:10px 16px;background:#111a35;color:#d4defe;font-family:Inter,sans-serif;text-align:center}
.pdf-paper h2{text-align:center;font-size:25px;letter-spacing:.1em}
.pdf-paper h3{font-size:20px}
.pdf-paper h4{font-size:17px}
.pdf-paper p{font-size:14px;text-indent:2em}
.formula{margin:18px auto;text-align:center;font-family:Georgia,serif;font-size:18px}
.definition{border:1px solid #eccb90;border-left:5px solid #f0c574;border-radius:6px;padding:12px;background:#fff7e9}
.definition p{margin:4px 0}
.ai-analysis{padding:22px;min-height:710px}
.analysis-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.analysis-head h2{margin:0;color:#fff;font-size:24px}
.analysis-head p{margin:8px 0;color:#92a3cd}
.analysis-head>span{color:#bc9cff;font-size:12px}
.analysis-tabs{display:grid;grid-template-columns:1.05fr repeat(5,1fr);gap:9px;margin:18px 0}
.analysis-tabs>*{border:1px solid #283c71;border-radius:10px;padding:10px;background:#111d3e;color:#c7d2f1;text-align:center;font-size:12px}
.analysis-tabs b{border-color:#8e72ff;background:#6844ec;color:#fff}
.analysis-row{display:grid;grid-template-columns:40px 92px 1fr auto;align-items:center;gap:9px;margin:10px 0;border:1px solid #243960;border-radius:12px;padding:11px;background:#111d3c}
.analysis-row i{display:grid;place-items:center;width:35px;height:35px;border-radius:10px;background:#2b56c0;color:#fff;font-style:normal;font-size:18px}
.analysis-row b{color:#8cc2ff}
.analysis-row span{color:#d7e1fc;font-size:13px}
.analysis-row em{color:#8f9ec5;font-size:12px;font-style:normal;white-space:nowrap}
.row-1 i{background:#d94f57}
.row-1 b{color:#ff9d9d}
.row-2 i{background:#0b9695}
.row-2 b{color:#70eeea}
.row-3 i{background:#7d49d9}
.row-3 b{color:#d2b2ff}
.row-4 i{background:#d58a25}
.row-4 b{color:#ffd37a}
.generate-strip{margin-top:16px;border:1px solid #293f72;border-radius:13px;padding:15px;background:#0e1936}
.generate-strip h3{margin:0 0 12px;font-size:16px}
.generate-strip>div{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.generate-strip button{min-height:62px;border:1px solid #3b54a0;border-radius:9px;background:#182956;color:#d7e4ff;font:600 12px inherit}
.generate-strip button:nth-child(1){border-color:#9a5eff;color:#d5b4ff}
.generate-strip button:nth-child(2){border-color:#3d9dff;color:#89ccff}
.generate-strip button:nth-child(3){border-color:#27d8b6;color:#8af1db}
.generate-strip button:nth-child(4){border-color:#eaa93a;color:#ffcd7e}
.generate-strip button:nth-child(5){border-color:#ef6378;color:#ffafba}
.analysis-notice{display:flex;align-items:center;gap:10px;margin-top:16px;border:1px solid #263d71;border-radius:10px;padding:13px;background:#111d3d;color:#aa9aff}
.analysis-notice button{margin-left:auto;border:1px solid #7a60ed;border-radius:8px;padding:7px 10px;background:#2c226b;color:#e9e4ff;cursor:pointer}

@media(max-width:1060px){.detail-grid{grid-template-columns:1fr}
.pdf-reader{min-height:560px}
.detail-actions{flex-wrap:wrap}
.analysis-tabs{grid-template-columns:repeat(3,1fr)}
.generate-strip>div{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:700px){.detail-titlebar{align-items:flex-start;flex-direction:column}
.detail-title-copy h1{font-size:21px}
.detail-grid{display:block}
.pdf-reader{grid-template-columns:1fr;margin-bottom:16px}
.pdf-thumbs{display:none}
.pdf-paper{margin:0;min-height:540px;padding:50px 25px}
.analysis-row{grid-template-columns:34px 1fr}
.analysis-row span{grid-column:2}
.analysis-row em{display:none}
.generate-strip>div{grid-template-columns:1fr 1fr}
}

.artifact-result{margin-top:15px;border:1px solid #4167a6;border-radius:11px;padding:13px 15px;background:#101f45;color:#dce7ff}
.artifact-result b{color:#83c7ff}
.artifact-result p{max-height:120px;overflow:auto;margin:8px 0;white-space:pre-line;line-height:1.65;font-size:13px}
.artifact-result small{color:#70d8bf}


/* Small, real-time feedback states for upload and AI generation. */
.reference-processing{position:fixed;right:28px;bottom:28px;z-index:999;display:flex;align-items:flex-start;gap:13px;width:min(382px,calc(100vw - 34px));padding:16px 18px;border:1px solid #6051d5;border-radius:15px;background:rgba(13,25,61,.96);box-shadow:0 19px 50px rgba(0,0,0,.42),0 0 30px rgba(103,75,255,.22);color:#f7f5ff;opacity:0;transform:translateY(18px);transition:opacity .28s ease,transform .28s ease}
.reference-processing.show{opacity:1;transform:translateY(0)}
.reference-processing>i{display:grid;place-items:center;flex:0 0 38px;width:38px;height:38px;border-radius:12px;background:#623ee8;color:#fff;box-shadow:0 0 20px rgba(122,93,255,.75);animation:reference-pulse 1s ease-in-out infinite}
.reference-processing b,.reference-processing small{display:block}
.reference-processing b{font-size:14px}
.reference-processing small{margin:5px 0 9px;color:#aab9e4;font-size:12px}
.reference-processing span{display:block;overflow:hidden;width:100%;height:5px;border-radius:99px;background:#26396c}
.reference-processing em{display:block;width:35%;height:100%;border-radius:inherit;background:linear-gradient(90deg,#6e4af3,#74d7ff);animation:reference-progress 1.1s ease-in-out infinite}
.reference-processing.done>i{background:#10ae85;animation:none}
.reference-processing.done em{width:100%;animation:none;background:#26d1a0}
.generate-strip button{cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease}
.generate-strip button:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(99,75,242,.27)}
.generate-strip button.is-working{opacity:.78;cursor:progress;animation:reference-pulse .75s ease-in-out infinite}
.reference-hero{animation:reference-rise .38s ease-out both}
.card{transition:border-color .2s ease,transform .2s ease}
.side-nav button.active{animation:reference-glow .8s ease-out}
.detail-page{animation:reference-rise .32s ease-out both}
@keyframes reference-rise{from{opacity:0;transform:translateY(9px)}
to{opacity:1;transform:translateY(0)}
}
@keyframes reference-pulse{50%{transform:scale(1.07);filter:brightness(1.2)}
}
@keyframes reference-progress{50%{transform:translateX(128%)}
}
@keyframes reference-glow{0%{filter:brightness(1)}
50%{filter:brightness(1.45)}
100%{filter:brightness(1)}
}

@media (prefers-reduced-motion:reduce){.reference-processing>i,.reference-processing em,.generate-strip button.is-working,.reference-hero,.detail-page,.side-nav button.active{animation:none!important}
.card,.reference-processing,.generate-strip button{transition:none!important}
}


/* Master dashboard: rebuilt from the supplied home-workbench reference. */
body[data-studyhub-view="home"] .shell{padding-left:0}
body[data-studyhub-view="home"] .sidebar{display:none}
body[data-studyhub-view="home"] .topbar{height:94px;padding:0 40px;background:rgba(7,14,34,.96)}
body[data-studyhub-view="home"] .layout{max-width:1560px;padding:28px 38px 54px}
.master-home{display:grid;gap:18px}
.master-greeting h1{margin:0;color:#fff;font-size:31px;letter-spacing:.02em}
.master-greeting p{margin:7px 0 0;color:#9ba9d1;font-size:15px}
.master-banner{position:relative;isolation:isolate;min-height:210px;overflow:hidden;border:1px solid #374b96;border-radius:18px;background:#101b42}
.master-banner:before{content:"";position:absolute;z-index:0;inset:0;background:url("assets/study-hero-robot.png") center/cover no-repeat}
.master-banner:after{content:"";position:absolute;z-index:1;inset:0;background:linear-gradient(90deg,rgba(14,24,61,.98) 0%,rgba(14,24,61,.90) 34%,rgba(11,21,54,.22) 70%);pointer-events:none}
.master-banner-robot{position:absolute;z-index:2;left:15px;bottom:0;width:270px;height:198px;background:url("assets/study-bot.png") bottom left/contain no-repeat;filter:drop-shadow(0 0 15px rgba(95,126,255,.5))}
.master-banner-bubble{position:relative;z-index:2;display:grid;gap:7px;min-width:45%;max-width:620px;margin:50px 0 0 clamp(360px,41%,560px);padding:0;border:0;border-radius:0;background:transparent;box-shadow:none}
.master-banner-bubble span{color:#b39cff;font-size:15px;font-weight:800}
.master-banner-bubble b{color:#fff;font-size:20px}
.master-banner-bubble p{margin:0;color:#c0cbea}
.master-banner-continue{position:absolute;left:calc(15px + 270px + 18px);top:54px;z-index:3;white-space:nowrap}
.master-banner-note{position:absolute;z-index:2;right:42px;bottom:22px;color:#d1c5ff;font-size:13px;line-height:1.7;text-align:center;transform:rotate(-8deg)}
.master-home-grid{display:grid;grid-template-columns:1.15fr .8fr .8fr;gap:18px}
.master-card{position:relative;overflow:hidden;border:1px solid #243d75;border-radius:17px;background:#0d1936;box-shadow:0 16px 34px rgba(0,0,0,.14)}
.master-tasks,.master-quick,.master-agent{min-height:298px;padding:22px}
.master-card-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.master-card-head h2{margin:0;color:#fff;font-size:19px}
.master-card-head h2 i{margin-right:9px;color:#9a7eff}
.master-card-head>span{color:#a3afd1;font-size:12px}
.master-card-sub{margin:7px 0 14px;color:#9aabd3;font-size:12px}
.task-summary{display:grid;grid-template-columns:124px 1fr;gap:15px;align-items:center}
.task-ring{display:grid;place-content:center;width:105px;height:105px;margin:auto;border:11px solid #42299a;border-top-color:#7b8aff;border-right-color:#68b6ff;border-radius:50%;text-align:center;box-shadow:0 0 20px rgba(104,101,255,.22)}
.task-ring b{color:#fff;font-size:27px}
.task-ring b small{font-size:16px}
.task-ring span{color:#aab8dd;font-size:11px}
.master-task-list{display:grid;gap:7px}
.master-task{display:flex;align-items:center;gap:9px;border:1px solid #223967;border-radius:10px;padding:8px;background:#142247;color:#eaf0ff;text-align:left;cursor:pointer}
.master-task>i{color:#8ca2dc;font-size:17px}
.master-task.done>i{color:#4ed7ae}
.master-task span{display:grid;gap:3px}
.master-task b{font-size:12px}
.master-task small{color:#8fa1cb;font-size:11px}
.master-task em{margin-left:auto;color:#a693ff;font-style:normal;font-size:11px}
.home-task-toggle{width:100%;border:1px dashed #5a69a2;border-radius:9px;padding:9px;background:#101f45;color:#c8baff;font:600 11px inherit;cursor:pointer}.home-task-toggle:hover{border-color:#9a80ff;background:#25205b;color:#fff}
.master-card-footer{margin:13px 0 0;color:#8699c4;font-size:12px}
.master-quick-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}
.master-quick-actions label,.master-quick-actions button{display:grid;grid-template-columns:38px 1fr;grid-template-rows:20px 18px;gap:0 8px;align-items:center;border:1px solid #263e73;border-radius:12px;padding:11px;background:#13224b;color:#e6efff;text-align:left;cursor:pointer}
.master-quick-actions input{display:none}
.master-quick-actions i{grid-row:1/3;display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:#3855b6;color:#d8e2ff}
.master-quick-actions label:nth-child(2) i{background:#9543bb}
.master-quick-actions label:nth-child(3) i{background:#216eb2}
.master-quick-actions button i{background:#c3773c}
.master-quick-actions b{font-size:13px}
.master-quick-actions small{color:#91a2cc;font-size:10px}
.master-agent{background:linear-gradient(135deg,#101e43,#142759)}
.master-agent>img{position:absolute;right:-21px;bottom:-38px;width:145px;opacity:.35}
.master-agent-steps{position:relative;z-index:1;display:grid;gap:11px;margin-top:20px}
.master-agent-steps>div{display:grid;grid-template-columns:27px 1fr;grid-template-rows:17px 16px;gap:0 9px;color:#9aadd3}
.master-agent-steps i{grid-row:1/3;display:grid;place-items:center;width:26px;height:26px;border:1px solid #455782;border-radius:50%;background:#102044;font-size:11px}
.master-agent-steps b{color:#e8efff;font-size:12px}
.master-agent-steps small{font-size:11px}
.master-agent-steps .complete i{border-color:#4bddba;background:#159b7e;color:#fff}
.master-agent-steps .active i{border-color:#9d80ff;color:#b5a6ff;animation:reference-spin 1.5s linear infinite}
.master-home-bottom{display:grid;grid-template-columns:1fr 1.1fr 1fr;gap:18px}
.master-home-bottom>.master-card{min-height:244px;padding:19px}
.weak-master-row{display:grid;grid-template-columns:30px 1fr auto;gap:8px;align-items:center;width:100%;margin-top:10px;border:1px solid #1d335e;border-radius:10px;padding:9px;background:#132247;color:#eaf1ff;cursor:pointer;text-align:left}
.weak-master-row>i{display:grid;place-items:center;width:25px;height:25px;border-radius:7px;background:#6e4bf1;color:#fff;font-style:normal}
.weak-master-row span{display:grid;gap:7px;font-size:12px}
.weak-master-row em{display:block;overflow:hidden;width:100%;height:6px;border-radius:7px;background:#26395f}
.weak-master-row em b{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#ff6a88,#a178ff)}
.weak-master-row strong{color:#ff7095;font-size:14px}
.weak-master-row small{display:none}
.material-master>button{display:grid;grid-template-columns:30px 1fr 15px;gap:9px;align-items:center;width:100%;border:0;border-bottom:1px solid #20355e;padding:9px 0;background:transparent;color:#e4edff;text-align:left;cursor:pointer}
.material-master>button>i{display:grid;place-items:center;width:28px;height:28px;border-radius:7px;background:#a84d68;color:#fff}
.material-master>button:nth-of-type(3)>i{background:#6d4ddb}
.material-master>button span{display:grid;gap:3px;font-size:12px}
.material-master>button small{color:#8fa1cc;font-size:10px}
.material-master>button>b{color:#9babc9}
.curve-master svg{width:100%;height:158px}
.curve-master .master-card-head small{font-weight:400;color:#9dafcf}

@media(max-width:1120px){.master-home-grid{grid-template-columns:1fr 1fr}
.master-agent{grid-column:span 2}
.master-home-bottom{grid-template-columns:1fr 1fr}
.curve-master{grid-column:span 2}
}
@media(max-width:720px){body[data-studyhub-view="home"] .topbar{padding:0 16px;height:64px}
body[data-studyhub-view="home"] .layout{padding:20px 14px 80px}
.master-greeting h1{font-size:24px}
.master-banner{min-height:235px}
.master-banner-robot{left:-22px;width:170px;height:122px}
.master-banner-bubble{max-width:none;margin:24px 14px 0 39%;padding:0}
.master-banner-bubble b{font-size:17px}
.master-banner-continue{left:230px;top:42px;padding:9px 12px;font-size:13px}
.master-banner-note{display:none}
.master-home-grid,.master-home-bottom{grid-template-columns:1fr}
.master-agent,.curve-master{grid-column:auto}
.task-summary{grid-template-columns:1fr}
.task-ring{display:none}
}


/* Material centre and reader: matched to supplied library/analysis references. */
body[data-studyhub-view="knowledge"] .shell{padding-left:0}
body[data-studyhub-view="knowledge"] .sidebar,body[data-studyhub-view="knowledge"] .subbar{display:none}
body[data-studyhub-view="knowledge"] .topbar{height:82px;padding:0 34px;background:rgba(7,14,34,.96)}
body[data-studyhub-view="knowledge"] .layout{max-width:1560px;padding:24px 34px 52px}
.master-library{display:grid;gap:18px}
.master-library-toolbar{display:grid;grid-template-columns:minmax(320px,1.55fr) repeat(3,.36fr) .5fr .44fr;gap:14px;align-items:center}
.library-search{display:flex;align-items:center;gap:11px;height:50px;border:1px solid #2d477f;border-radius:12px;padding:0 15px;background:#101b3b;color:#9db1e0}
.library-search input{min-width:0;flex:1;border:0;outline:0;background:transparent;color:#e9efff;font:inherit}
.library-search kbd{border-radius:6px;padding:4px 7px;background:#26365f;color:#9fafd8;font-size:11px}
.master-library-toolbar>button{height:50px;border:1px solid #273f73;border-radius:11px;background:#111d3c;color:#c9d5f3;font:600 13px inherit;cursor:pointer}
.master-library-toolbar>button i{float:right;margin-top:2px;color:#7f91be}
.library-upload{display:flex;align-items:center;justify-content:center;gap:9px;height:50px;border-radius:11px;color:#fff;cursor:pointer;box-shadow:0 10px 25px rgba(103,67,245,.3)}
.master-library-toolbar>button.library-upload{border-color:#9676ff;background:#7049ef;color:#fff}
.master-library-toolbar>button.library-upload:hover,.master-library-toolbar>button.library-upload:focus-visible{background:#805dff;box-shadow:0 0 0 2px rgba(160,131,255,.28),0 12px 28px rgba(103,67,245,.36)}
.master-library-toolbar>button.library-upload i{float:none;margin:0;color:#fff}
.library-batch{border-color:#755cff!important;background:#101b3b!important}
.master-library-hero{position:relative;overflow:hidden;min-height:228px;border:1px solid #303f86;border-radius:18px;background:#10193a url("assets/library-hero-v1.png") right center/auto 100% no-repeat}
.master-library-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,23,53,1) 0%,rgba(12,23,53,.92) 39%,rgba(12,23,53,.08) 74%)}
.master-library-hero>div{position:relative;z-index:1;padding:35px 39px}
.master-library-hero h1{margin:0;color:#fff;font-size:30px;line-height:1.28}
.master-library-hero p{margin:11px 0 20px;color:#b4c2e5}
.master-library-hero span{display:inline-block;margin-right:8px;border:1px solid #344b88;border-radius:9px;padding:9px 12px;background:rgba(20,34,73,.9);color:#d6e1ff;font-size:12px}
.library-content-grid{display:grid;grid-template-columns:minmax(760px,1.68fr) minmax(320px,.62fr);gap:18px}
.library-table-card,.library-overview,.library-recent{border:1px solid #233d75;border-radius:16px;background:#0d1936}
.library-tabs{display:flex;gap:10px;overflow:auto;border-bottom:1px solid #203660;padding:0 18px}
.library-tabs button{flex:0 0 auto;border:0;border-bottom:3px solid transparent;padding:17px 7px 13px;background:transparent;color:#b3c0df;font:600 13px inherit;cursor:pointer}
.library-tabs button.active{border-bottom-color:#8b6bff;color:#d8ccff}
.library-tabs b{margin-left:4px;border-radius:12px;padding:3px 6px;background:#26355e;font-size:11px}
.library-columns,.library-row{display:grid;grid-template-columns:minmax(245px,2.05fr) .52fr .72fr minmax(112px,.98fr) .52fr .8fr .98fr .3fr;gap:10px;align-items:center;padding:0 14px}
.library-columns{min-height:48px;border-bottom:1px solid #203660;color:#8597c2;font-size:12px}
.library-columns input,.library-row input{margin-right:12px;accent-color:#795dff}
.library-row{min-height:71px;border-bottom:1px solid #1b315a;color:#b5c4e4;font-size:12px;cursor:pointer;transition:transform .16s ease,background .16s ease,box-shadow .16s ease}
.library-row[hidden]{display:none!important}
.library-row:hover{position:relative;z-index:1;background:linear-gradient(90deg,rgba(75,56,165,.24),rgba(20,44,92,.38));box-shadow:inset 3px 0 #916bff,0 8px 22px rgba(0,0,0,.22);transform:translateX(2px)}
.library-row:hover>span:first-child b{color:#fff}
.library-row>span:first-child{display:flex;align-items:center;min-width:0}
.library-row>span:first-child b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#e7efff}
.library-row>span>i{display:grid;place-items:center;flex:0 0 30px;width:30px;height:30px;margin-right:10px;border-radius:7px;background:#5665cf;color:#fff;font-size:16px}
.library-row>span>i.PDF{background:#e9575d}
.library-row>span>i.Word{background:#426ed7}
.library-row>span>i.鍥剧墖{background:#3aaf79}
.library-row>span>i.褰曢煶{background:#8553d9}
.library-row em,.material-tags i{display:inline-block;border-radius:13px;padding:5px 8px;background:#26346e;color:#aab9ff;font-style:normal;font-size:11px}
.material-tags{display:flex;flex-wrap:wrap;gap:4px;min-width:0;align-content:center}
.library-row .material-tags i{display:inline-flex;align-items:center;width:max-content;height:auto;margin:0;padding:4px 6px;flex:0 0 auto;background:#243153;color:#c3d2ff;font-size:11px;line-height:1;white-space:nowrap;transition:transform .16s ease,background .16s ease}
.library-row:hover .material-tags i{background:#4d55bc;color:#fff;transform:translateY(-2px)}
.library-row small{display:block;color:#8497c3}
.library-row .parsed{color:#5fe0b4}
.library-row .parsed i{margin:0 4px 0 0;color:#4be0ac}
.library-row .parsed.pending{color:#f0bd70}.library-row .parsed.pending i{color:#f0bd70}
.library-row button{border:0;background:transparent;color:#b9a3ff;cursor:pointer}
.library-empty{margin:16px;border:1px dashed #466195;border-radius:10px;padding:24px 16px;color:#a7b9df;text-align:center;font-size:13px;line-height:1.7}
.library-pagination{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:64px;padding:10px 16px;border-top:1px solid #203660;color:#91a6d2;font-size:12px}
.library-pagination>div{display:flex;gap:8px}
.library-pagination button{display:inline-flex;align-items:center;gap:7px;min-height:36px;border:1px solid #304a7d;border-radius:9px;padding:0 12px;background:#142449;color:#c6d4f3;font:600 12px inherit;cursor:pointer;transition:border-color .18s ease,background .18s ease,color .18s ease}
.library-pagination button:hover:not(:disabled){border-color:#8b6bff;background:#29235c;color:#fff}
.library-pagination button:disabled{opacity:.42;cursor:not-allowed}
.library-rows>.library-filter-empty{margin:0;border:0;border-radius:0;background:#0d1936}
.library-table-card{display:flex;flex-direction:column;overflow:hidden}
.library-encouragement{position:relative;display:flex;align-items:center;flex:1;min-height:290px;overflow:hidden;border-top:1px solid #2b4179;padding:34px 42px;background:linear-gradient(90deg,rgba(8,18,49,.96) 0%,rgba(9,20,53,.82) 36%,rgba(9,19,48,.12) 76%),url("assets/library-encouragement-v1.png") center right/cover no-repeat,#0a1740}
.library-encouragement:after{content:"";position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 40px rgba(10,19,55,.75)}
.library-encouragement>div{position:relative;z-index:1;max-width:440px}
.library-encouragement span,.mistake-encouragement span{color:#b7a4ff;font-size:11px;font-weight:800;letter-spacing:.12em}
.library-encouragement h2{margin:12px 0 8px;color:#fff;font-size:clamp(21px,2vw,30px);line-height:1.35;text-shadow:0 3px 20px rgba(2,7,29,.8)}
.library-encouragement p{margin:0;color:#c7d9f6;font-size:13px;line-height:1.7}
.library-tabs button:hover,.library-tabs button:focus-visible{color:#f0eaff}
.library-tabs button:focus-visible{outline:2px solid #9b82ff;outline-offset:-3px;border-radius:5px}
.mistake-analysis{display:flex;flex-direction:column}
.mistake-encouragement{position:relative;display:flex;align-items:flex-start;flex:1;min-height:320px;overflow:hidden;margin-top:16px;border:1px solid #454c9c;border-radius:14px;padding:28px;background:linear-gradient(90deg,rgba(7,16,46,.9) 0%,rgba(8,18,49,.68) 40%,rgba(9,20,55,.08) 100%),url("assets/mistake-encouragement-v1.png") center 72%/cover no-repeat,#101c45}
.mistake-encouragement:after{content:"";position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 34px rgba(11,18,48,.65)}
.mistake-encouragement>div{position:relative;z-index:1;max-width:460px}
.mistake-encouragement h3{margin:11px 0 7px;color:#fff;font-size:clamp(21px,1.8vw,29px);line-height:1.4;text-shadow:0 3px 17px rgba(4,10,31,.85)}
.mistake-encouragement p{margin:0;color:#c6d7f5;font-size:13px;line-height:1.7}
@media(max-width:720px){.library-encouragement{min-height:240px;padding:24px;background-position:60% center}.mistake-encouragement{min-height:260px;padding:24px}}
.detail-missing{display:grid;justify-items:start;gap:12px;border:1px dashed #4b649b;border-radius:16px;padding:36px;background:#0d1a38;color:#adc0e5}.detail-missing h1{margin:0;color:#fff}.detail-missing p{max-width:560px;margin:0;line-height:1.8}
.detail-delete{border-color:#78445e!important;color:#ffc1d0!important}.detail-delete:hover:not(:disabled){border-color:#ee6d90!important;background:#48243b!important;color:#fff!important}.detail-delete:disabled{opacity:.65;cursor:wait}
.library-aside{display:grid;align-content:start;gap:16px}
.library-lecture{display:grid;grid-template-columns:44px minmax(0,1fr);align-items:start;gap:10px 12px;border:1px solid #6554c7;border-radius:16px;padding:16px;background:linear-gradient(135deg,rgba(36,32,96,.96),rgba(13,30,67,.96));box-shadow:0 0 20px rgba(105,79,228,.16)}
.library-lecture-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:linear-gradient(140deg,#7555ec,#3577d7);color:#fff;font-size:20px;box-shadow:0 0 17px rgba(124,88,255,.35)}
.library-lecture-copy h2{margin:0 0 5px;color:#fff;font-size:17px;line-height:1.3}
.library-lecture-copy p{margin:0;color:#acbee9;font-size:12px;line-height:1.55}
.library-lecture .btn{grid-column:1/-1;width:100%;min-height:38px;margin-top:1px;font-size:13px}
.library-overview{padding:18px}
.library-aside-head,.library-recent h2{display:flex;align-items:center;justify-content:space-between;margin:0 0 14px;color:#fff;font-size:18px}
.library-aside-head button,.library-recent h2 button{border:0;background:transparent;color:#a59ae7;font:600 12px inherit;cursor:pointer}
.overview-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.overview-grid article{display:flex;align-items:center;gap:10px;min-height:98px;border-radius:13px;padding:12px;background:#152244}
.overview-grid article:nth-child(2){background:#25233a}
.overview-grid article:nth-child(3){background:#123c3e}
.overview-grid i{display:grid;place-items:center;width:33px;height:33px;border-radius:9px;background:#5636c8;color:#fff}
.overview-grid article:nth-child(2) i{background:#c78045}
.overview-grid article:nth-child(3) i{background:#24a880}
.overview-grid span{display:grid;gap:2px;color:#bdc9e8;font-size:11px}
.overview-grid b{color:#fff;font-size:25px}
.overview-grid small{color:#9aabd0}
.merge-card{position:relative;overflow:hidden;min-height:251px;border:1px solid #5343ad;border-radius:16px;padding:22px;background:#16134d}
.merge-card:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 84% 14%,rgba(139,103,255,.48),transparent 34%)}
.merge-card h2,.merge-card p,.merge-card .btn{position:relative;z-index:1}
.merge-card h2{margin:0;color:#fff;font-size:19px}
.merge-card p{max-width:58%;color:#b9b6e4;font-size:12px;line-height:1.6}
.merge-card img{position:absolute;right:-42px;bottom:-36px;width:235px;opacity:.77}
.merge-card .btn{position:absolute;right:18px;bottom:18px;left:18px;text-align:center}
.library-recent{padding:18px}
.library-recent>button{display:flex;align-items:center;gap:9px;width:100%;border:0;border-top:1px solid #203660;padding:10px 0;background:transparent;color:#e1eaff;text-align:left;cursor:pointer}
.library-recent>button>i{display:grid;place-items:center;width:27px;height:27px;border-radius:7px;background:#d65762}
.library-recent>button:nth-of-type(2)>i{background:#35a676}
.library-recent>button:nth-of-type(3)>i{background:#7b4cd8}
.library-recent span{display:grid;gap:3px;font-size:12px}
.library-recent small{color:#8d9fc8;font-size:10px}

.master-detail{display:grid;gap:17px}
.detail-top{display:flex;align-items:center;justify-content:space-between;gap:20px}
.detail-top>div{display:flex;align-items:center;gap:12px}
.detail-top>div:first-child>i{display:grid;place-items:center;width:50px;height:50px;border-radius:10px;background:#e95059;color:#fff;font-size:28px}
.detail-top h1{margin:0;color:#fff;font-size:25px}
.detail-top p{margin:6px 0 0;color:#8fa1c9;font-size:12px}
.detail-top em{margin-left:8px;border-radius:7px;padding:5px 7px;background:#26335e;color:#b7a9ff;font-style:normal}
.detail-top button{border:1px solid #2b4277;border-radius:9px;padding:9px 11px;background:#101c3d;color:#d7e3ff;font:600 12px inherit;cursor:pointer}
.detail-workspace{display:grid;grid-template-columns:minmax(500px,.72fr) minmax(630px,1.12fr);gap:17px}
.detail-reader,.detail-analysis{min-height:704px;border:1px solid #263e75;border-radius:16px;background:#0d1936}
.detail-reader{display:grid;grid-template-columns:115px 1fr;align-self:start;height:min(760px,calc(100vh - 150px));min-height:0;overflow:hidden}
.detail-reader aside{display:flex;min-height:0;flex-direction:column;gap:12px;overflow:auto;padding:15px;background:#0a1430}
.detail-reader aside>button{border:0;border-radius:8px;padding:9px;background:#202060;color:#c7bbff;font:600 12px inherit;cursor:pointer}
.detail-reader aside>button+button{background:transparent;color:#8fa0c8}
.detail-reader aside>button.active{background:#202060;color:#c7bbff}
.reader-thumbnails{display:grid;gap:12px}.reader-outline{display:grid;gap:7px}.reader-thumbnails[hidden],.reader-outline[hidden]{display:none!important}.reader-outline button{border:1px solid #29416e;border-radius:7px;padding:8px;background:#131f42;color:#c9d7f3;text-align:left;font:12px inherit;cursor:pointer}.reader-outline button:hover{border-color:#926fff;background:#1c2b58}
.page-thumb{display:flex;flex-direction:column;justify-content:space-between;height:90px;border:1px solid #354671;border-radius:4px;padding:9px;background:#e7e6e3;color:#31303b;font-size:12px;cursor:pointer;text-align:left;transition:transform .18s ease,box-shadow .18s ease}
.page-thumb:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(0,0,0,.3)}
.page-thumb.selected{box-shadow:0 0 0 3px #805fff}
.page-thumb small{align-self:center}
.detail-reader>article{position:relative;min-height:0;overflow:auto;margin:12px 12px 12px 0;background:#fbfaf5}
.detail-reader>article>header{position:sticky;z-index:1;top:0;padding:10px;background:#111b37;color:#cbd7f6;text-align:center}
.reader-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px}.reader-toolbar>div,.reader-page-nav{display:flex;align-items:center;gap:8px}.reader-page-nav{order:2;border-left:1px solid #354b80;padding-left:10px}.reader-page-nav b{min-width:48px;text-align:center}.reader-toolbar button{width:27px;height:25px;border:1px solid #3d5692;border-radius:5px;background:#1c2b52;color:#e1eaff;cursor:pointer}.reader-toolbar button:hover{border-color:#a787ff;background:#2b2765}.reader-toolbar button:disabled{cursor:not-allowed;opacity:.4}.reader-toolbar b{min-width:38px;font-size:11px}
.paper{padding:26px 48px;color:#272833;font-family:Georgia,"Noto Serif SC",serif;line-height:1.9}
.paper h2{text-align:center;font-size:25px}
.paper h3{font-size:20px}
.paper h4{font-size:16px}
.paper p{font-size:14px;text-indent:2em}
.paper-formula{margin:20px;text-align:center;font-size:17px}
.paper-definition{border:1px solid #e7c37f;border-left:5px solid #e6b758;border-radius:6px;padding:12px;background:#fff8e9}
.detail-analysis{padding:20px}
.detail-analysis>header{display:flex;align-items:start;justify-content:space-between;gap:12px}
.detail-analysis h2{margin:0;color:#fff;font-size:24px}
.detail-analysis header p{margin:7px 0;color:#92a3cb;font-size:13px}
.detail-analysis header>b{color:#b99dff;font-size:12px}
.detail-analysis nav{display:grid;grid-template-columns:1.15fr repeat(5,1fr);gap:8px;margin:17px 0}
.detail-analysis nav button{border:1px solid #2b4276;border-radius:9px;padding:10px;background:#111d3c;color:#c6d4f4;font:600 12px inherit}
.detail-analysis nav button.active{border-color:#9578ff;background:#6744e4;color:#fff}
.detail-analysis nav i{border-radius:12px;padding:2px 5px;background:#334266;font-style:normal;font-size:10px}
.analysis-item{display:grid;grid-template-columns:39px 88px 1fr auto;gap:9px;align-items:center;margin-top:10px;border:1px solid #243a69;border-radius:11px;padding:10px;background:#111e40}
.analysis-item[role="button"]{width:100%;cursor:pointer;text-align:left;font:inherit;transition:border-color .18s ease,transform .18s ease,background .18s ease,box-shadow .18s ease}
.analysis-item[role="button"]:hover{transform:translateY(-2px);border-color:#8064ed;background:#162650;box-shadow:0 9px 20px rgba(10,8,49,.24)}
.analysis-item[role="button"]:focus-visible{outline:2px solid #a98eff;outline-offset:2px}
.analysis-item>i{display:grid;place-items:center;width:35px;height:35px;border-radius:9px;background:#3d68c4;color:#fff;font-style:normal;font-size:17px}
.analysis-item>b{color:#8cc8ff}
.analysis-item span{color:#d9e3fa;font-size:12px}
.analysis-item small{color:#8999be;font-size:11px}
.analysis-item[role="button"] small::before{content:'↗ ';color:#b99dff;font-size:13px}
.material-runtime-note{margin:14px 0 0;border:1px solid #725aaa;border-radius:9px;padding:10px 12px;background:#1a214a;color:#c9bfff;font-size:13px;line-height:1.65}
.analysis-item.a-1>i{background:#d45056}
.analysis-item.a-1>b{color:#ff9797}
.analysis-item.a-2>i{background:#139e9b}
.analysis-item.a-2>b{color:#69ece8}
.analysis-item.a-3>i{background:#7546ca}
.analysis-item.a-3>b{color:#c8a7ff}
.analysis-item.a-4>i{background:#d9962c}
.analysis-item.a-4>b{color:#ffcf78}
.one-click{margin-top:16px;border:1px solid #2d467d;border-radius:12px;padding:14px;background:#101b3b}
.one-click h3{display:inline;margin:0;color:#fff;font-size:16px}
.one-click p{display:inline;margin-left:8px;color:#8fa1cb;font-size:11px}
.one-click>div{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:13px}
.one-click button{min-height:57px;border:1px solid #5740b6;border-radius:9px;background:#1b2050;color:#e5dfff;font:600 12px inherit;cursor:pointer}
.one-click button:nth-child(2){border-color:#3387dd}
.one-click button:nth-child(3){border-color:#24b49b}
.one-click button:nth-child(4){border-color:#d39329}
.one-click button:nth-child(5){border-color:#d95267}
.one-click output{display:block;margin-top:11px;color:#d6e5ff;white-space:pre-line;font-size:12px;line-height:1.6}
.one-click output b{color:#a996ff}
.one-click output small{color:#62d9b5}
.artifact-title{display:block;margin:15px 0 10px;color:#fff;font-size:15px}
.artifact-coverage{display:inline-flex;margin:11px 8px 0 0;border:1px solid #345e93;border-radius:999px;padding:4px 8px;background:#10294a;color:#9ec8ff;font-size:10px}
.artifact-source{display:block;margin-top:12px;color:#63e2bb;font-size:11px}
.artifact-legacy{margin:10px 0 0;color:#d6e5ff;white-space:pre-line}
.artifact-generation{margin:0 0 10px;border-left:3px solid #6c9cff;padding:7px 10px;background:rgba(43,82,153,.2);color:#acc7ff;font-size:11px;line-height:1.6}.artifact-evidence{display:block;margin-top:5px;color:#6edabc;font-size:10px;line-height:1.55}.artifact-summary{border:1px solid #344f8e;border-radius:12px;padding:14px 16px;background:linear-gradient(135deg,#13244d,#101d3e)}
.artifact-summary p{margin:0;color:#e2eaff;font-size:13px;line-height:1.8}.artifact-summary ul{display:grid;gap:7px;margin:13px 0 0;padding:0;list-style:none}.artifact-summary li{position:relative;padding-left:16px;color:#b9c9ee;font-size:12px;line-height:1.65}.artifact-summary li:before{content:"";position:absolute;left:0;top:.56em;width:7px;height:7px;border-radius:50%;background:#a986ff;box-shadow:0 0 10px #805dff}
.artifact-mindmap{margin-top:11px;border:1px solid #304d8c;border-radius:14px;padding:13px;background:radial-gradient(circle at 50% 48%,rgba(104,73,233,.16),transparent 42%),#0b1836}.artifact-mindmap>header{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0 2px 10px}.artifact-mindmap>header b{color:#f5f7ff;font-size:14px}.artifact-mindmap>header span{color:#91a5d6;font-size:11px}.artifact-mindmap-preview{margin-left:auto;border:1px solid #7f63e9;border-radius:8px;padding:7px 10px;background:rgba(112,80,232,.18);color:#ddd6ff;font:700 11px/1 inherit;white-space:nowrap;cursor:pointer}.artifact-mindmap-preview:hover{border-color:#b099ff;background:rgba(132,91,255,.32);color:#fff}.artifact-mindmap-scroll{overflow:auto;border:1px solid rgba(72,103,173,.45);border-radius:12px;background:radial-gradient(circle at center,rgba(96,63,220,.2),transparent 35%),linear-gradient(145deg,#101f46,#09142d)}.artifact-mindmap-stage{position:relative;width:1320px;min-width:1320px;overflow:hidden}.artifact-mindmap-lines{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;filter:drop-shadow(0 0 4px rgba(132,123,255,.28))}
.artifact-map-root,.artifact-map-branch,.artifact-map-child{position:absolute;z-index:1;transform:translate(-50%,-50%);font-family:inherit;transition:transform .18s ease,box-shadow .18s ease,filter .18s ease}.artifact-map-root{display:grid;place-items:center;width:190px;min-height:64px;border:1px solid #11162f;border-radius:9px;padding:10px 15px;background:#090d21;color:#fff;box-shadow:0 12px 26px rgba(0,0,0,.4),0 0 0 1px rgba(207,216,255,.16);font-size:15px;font-weight:800;line-height:1.35;text-align:center;overflow-wrap:anywhere}.artifact-map-branch{display:grid;gap:4px;width:200px;border:2px solid var(--branch-color);border-radius:8px;padding:10px 14px;background:#15244a;color:#f4f7ff;box-shadow:0 5px 16px rgba(0,0,0,.25);font:700 13px/1.45 inherit;text-align:center;cursor:pointer;overflow-wrap:anywhere}.artifact-map-branch small{color:#afc6ed;font-size:10px;font-weight:500}.artifact-map-child{display:grid;gap:3px;width:210px;min-height:44px;border:1px solid var(--branch-color);border-radius:7px;padding:7px 10px;background:#0e1937;color:#c9d9ff;font:600 11px/1.45 inherit;text-align:center;cursor:pointer;overflow-wrap:anywhere}.artifact-map-child b{display:block;overflow:visible}.artifact-map-child small{color:#8fb2df;font-size:9px;font-weight:500}.artifact-map-branch:hover,.artifact-map-branch.selected,.artifact-map-child:hover,.artifact-map-child.selected{z-index:3;filter:brightness(1.2);box-shadow:0 0 0 3px color-mix(in srgb,var(--branch-color) 25%,transparent),0 10px 20px rgba(0,0,0,.28);transform:translate(-50%,-50%) scale(1.05)}.artifact-map-evidence{min-height:37px;margin:10px 0 0;border-left:3px solid #55cbb0;padding:8px 10px;background:#102443;color:#a9cce2;font-size:11px;line-height:1.6}
.mindmap-preview-dialog{width:min(96vw,1500px);height:min(92vh,980px);max-width:none;max-height:none;overflow:hidden;border:1px solid #536fab;border-radius:16px;padding:0;background:#0a1734;color:#fff;box-shadow:0 28px 90px rgba(0,0,0,.62)}.mindmap-preview-dialog::backdrop{background:rgba(1,7,22,.76);backdrop-filter:blur(3px)}.mindmap-preview-dialog>header{display:flex;align-items:center;justify-content:space-between;gap:12px;height:52px;padding:0 18px;border-bottom:1px solid #2d4a86;background:#101f46}.mindmap-preview-dialog>header b{font-size:15px;color:#f5f7ff}.mindmap-preview-dialog>header button{border:1px solid #647fb8;border-radius:7px;padding:7px 10px;background:#152a58;color:#dbe8ff;font:700 11px/1 inherit;cursor:pointer}.mindmap-preview-dialog>header button:hover{background:#223d75;color:#fff}.mindmap-preview-viewport{display:grid;place-items:center;box-sizing:border-box;width:100%;height:calc(100% - 52px);overflow:hidden;background:radial-gradient(circle at 50% 50%,rgba(104,73,233,.18),transparent 45%),#08142d}.mindmap-preview-frame{position:relative;overflow:hidden}.mindmap-preview-stage{position:absolute!important;left:0;top:0;min-width:0!important;pointer-events:none}
.artifact-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.artifact-card{display:grid;min-height:132px;align-content:start;gap:9px;border:1px solid #365994;border-radius:13px;padding:14px;background:linear-gradient(145deg,#172b58,#101d3e);color:#e8efff;text-align:left;font:inherit;cursor:pointer;transition:transform .18s ease,border-color .18s ease}.artifact-card:hover{border-color:#a083ff;transform:translateY(-2px)}.artifact-card small{color:#a894ff;font-size:10px}.artifact-card b{font-size:13px;line-height:1.55}.artifact-card span{display:none;color:#7de4c2;font-size:12px;line-height:1.65}.artifact-card.flipped{border-color:#49c8a6;background:#123e42}.artifact-card.flipped b{display:none}.artifact-card.flipped span{display:block}
.artifact-outline{display:grid;gap:9px}.artifact-outline article{border-left:3px solid #8b6cff;border-radius:0 11px 11px 0;padding:10px 13px;background:#142348}.artifact-outline h4{margin:0;color:#f0f4ff;font-size:13px}.artifact-outline ul{display:grid;gap:5px;margin:8px 0 0;padding-left:18px;color:#b8c8ed;font-size:12px;line-height:1.6}
.artifact-checks{display:grid;gap:9px}.artifact-notice{margin:0;border:1px solid #725d31;border-radius:9px;padding:9px 11px;background:#2f281a;color:#ffd882;font-size:11px;line-height:1.6}.artifact-checks article{display:grid;grid-template-columns:28px 1fr;gap:10px;border:1px solid #533e70;border-radius:11px;padding:10px;background:#1a1d45}.artifact-checks article>i{display:grid;place-items:center;width:27px;height:27px;border-radius:8px;background:#7344c8;color:#fff;font-style:normal;font-weight:800}.artifact-checks article div{display:grid;gap:4px}.artifact-checks b{color:#f1eaff;font-size:12px}.artifact-checks span{color:#f6c1cf;font-size:12px}.artifact-checks article small{color:#9eadd1;font-size:10px;line-height:1.45}
.saved-artifacts{margin-top:16px;border:1px solid #2b447b;border-radius:13px;padding:15px;background:#0d1834}.saved-artifacts>h3{margin:0 0 9px;color:#f2f5ff;font-size:15px}.saved-artifacts details{border-top:1px solid #263c6a;padding:10px 0}.saved-artifacts details:last-child{padding-bottom:0}.saved-artifacts summary{color:#c8b3ff;font-weight:700;cursor:pointer}.saved-artifact-content{padding-top:8px}.saved-artifact-content>.artifact-title{display:none}.saved-artifact-time{display:block;margin-top:7px;color:#778ab9;font-size:10px}
.saved-artifacts>header{display:flex;align-items:center;justify-content:space-between;gap:12px}.saved-artifacts>header h3{margin:0;color:#f2f5ff;font-size:16px}.saved-artifacts>header label{display:flex;align-items:center;gap:7px;color:#aebee4;font-size:11px}.saved-artifacts select{max-width:250px;border:1px solid #45609f;border-radius:8px;padding:7px 9px;background:#13234a;color:#e8efff;font:inherit;font-size:12px;cursor:pointer}.saved-artifact-meta{margin:9px 0 3px;color:#9eb4de;font-size:12px;line-height:1.55}.saved-artifact-empty{margin:10px 0 0;border:1px dashed #49639b;border-radius:10px;padding:13px;color:#a9bddf;font-size:12px;line-height:1.65}.saved-artifact-history{margin-top:8px;border-color:#453778!important;background:#141d43}.saved-artifact-history>summary{color:#c9baff!important}

@media(max-width:1160px){.master-library-toolbar{grid-template-columns:1fr 1fr 1fr}
.library-search{grid-column:span 3}
.library-content-grid{grid-template-columns:1fr}
.detail-workspace{grid-template-columns:1fr}
.detail-reader{min-height:560px}
}
@media(max-width:720px){body[data-studyhub-view="knowledge"] .topbar{height:64px;padding:0 16px}
body[data-studyhub-view="knowledge"] .layout{padding:16px 12px 60px}
.master-library-toolbar{grid-template-columns:1fr 1fr}
.library-search{grid-column:span 2}
.master-library-hero>div{padding:25px 20px}
.master-library-hero h1{font-size:23px}
.master-library-hero span{margin:3px;padding:7px}
.library-columns,.library-row{grid-template-columns:minmax(180px,1fr) .6fr .7fr;padding:0 10px}
.library-columns>span:nth-child(n+4),.library-row>span:nth-child(n+4){display:none}
.detail-top,.detail-top>div{align-items:flex-start;flex-direction:column}
.detail-reader{grid-template-columns:1fr;height:auto;min-height:530px}
.detail-reader aside{display:none}
.detail-reader>article{margin:0;min-height:530px}
.paper{padding:20px}
.detail-analysis nav{grid-template-columns:repeat(3,1fr)}
.analysis-item{grid-template-columns:34px 1fr}
.analysis-item span{grid-column:2}
.analysis-item small{display:none}
.one-click>div{grid-template-columns:1fr 1fr}
.artifact-mindmap-stage{min-width:540px;height:360px}.artifact-cards{grid-template-columns:1fr}
}


/* The supplied screens use a single full-width study workbench; preserve the app's real view logic while applying that shared frame. */
body[data-studyhub-view="graph"] .shell,body[data-studyhub-view="practice"] .shell,body[data-studyhub-view="mistakes"] .shell,body[data-studyhub-view="training"] .shell,body[data-studyhub-view="report"] .shell,body[data-studyhub-view="planner"] .shell,body[data-studyhub-view="tutor"] .shell,body[data-studyhub-view="exam"] .shell{padding-left:0}
body[data-studyhub-view="graph"] .sidebar,body[data-studyhub-view="practice"] .sidebar,body[data-studyhub-view="mistakes"] .sidebar,body[data-studyhub-view="training"] .sidebar,body[data-studyhub-view="report"] .sidebar,body[data-studyhub-view="planner"] .sidebar,body[data-studyhub-view="tutor"] .sidebar,body[data-studyhub-view="exam"] .sidebar,body[data-studyhub-view="graph"] .subbar,body[data-studyhub-view="practice"] .subbar,body[data-studyhub-view="mistakes"] .subbar,body[data-studyhub-view="training"] .subbar,body[data-studyhub-view="report"] .subbar,body[data-studyhub-view="planner"] .subbar,body[data-studyhub-view="tutor"] .subbar,body[data-studyhub-view="exam"] .subbar{display:none}
body[data-studyhub-view="graph"] .topbar,body[data-studyhub-view="practice"] .topbar,body[data-studyhub-view="mistakes"] .topbar,body[data-studyhub-view="training"] .topbar,body[data-studyhub-view="report"] .topbar,body[data-studyhub-view="planner"] .topbar,body[data-studyhub-view="tutor"] .topbar,body[data-studyhub-view="exam"] .topbar{height:82px;padding:0 38px;background:rgba(7,14,34,.96)}
body[data-studyhub-view="graph"] .layout,body[data-studyhub-view="practice"] .layout,body[data-studyhub-view="mistakes"] .layout,body[data-studyhub-view="training"] .layout,body[data-studyhub-view="report"] .layout,body[data-studyhub-view="planner"] .layout,body[data-studyhub-view="tutor"] .layout,body[data-studyhub-view="exam"] .layout{max-width:1560px;padding:38px 40px 64px}
@media(max-width:720px){body[data-studyhub-view="graph"] .topbar,body[data-studyhub-view="practice"] .topbar,body[data-studyhub-view="mistakes"] .topbar,body[data-studyhub-view="training"] .topbar,body[data-studyhub-view="report"] .topbar,body[data-studyhub-view="planner"] .topbar,body[data-studyhub-view="tutor"] .topbar,body[data-studyhub-view="exam"] .topbar{height:64px;padding:0 16px}
body[data-studyhub-view="graph"] .layout,body[data-studyhub-view="practice"] .layout,body[data-studyhub-view="mistakes"] .layout,body[data-studyhub-view="training"] .layout,body[data-studyhub-view="report"] .layout,body[data-studyhub-view="planner"] .layout,body[data-studyhub-view="tutor"] .layout,body[data-studyhub-view="exam"] .layout{padding:22px 14px 60px}
}


/* Preserve StudyHub's persistent sidebar. The supplied references describe the
   right-side workspace, not a replacement for the application navigation. */
.master-nav-toggle,.master-global-nav{display:none!important}

body[data-studyhub-view][data-studyhub-view] .shell{padding-left:286px}

body[data-studyhub-view][data-studyhub-view] .sidebar{display:flex}

body[data-studyhub-view][data-studyhub-view] .subbar{display:block}

body[data-studyhub-view][data-studyhub-view] .topbar{height:77px;padding:0 34px}

body[data-studyhub-view][data-studyhub-view] .layout{max-width:1560px;padding:28px 34px 54px}

@media(max-width:1500px){
  .master-home-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr)}

  .master-agent{grid-column:span 2}
.master-home-bottom{grid-template-columns:1fr 1fr}
.curve-master{grid-column:span 2}

  .master-graph-grid{grid-template-columns:280px minmax(0,1fr)}
.knowledge-detail{grid-column:span 2}

  .master-practice-grid{grid-template-columns:280px minmax(0,1fr)}
.practice-tutor-panel{grid-column:span 2}

  .planner-grid{grid-template-columns:280px minmax(0,1fr)}
.planner-right{grid-column:span 2;grid-template-columns:1fr 1fr}

  .master-tutor-grid{grid-template-columns:300px minmax(0,1fr)}
.tutor-controls{grid-column:span 2}

}

@media(max-width:1180px){body[data-studyhub-view][data-studyhub-view] .shell{padding-left:78px}
body[data-studyhub-view][data-studyhub-view] .layout{padding:24px 22px 44px}
}

@media(max-width:860px){body[data-studyhub-view][data-studyhub-view] .shell{padding-left:0}
body[data-studyhub-view][data-studyhub-view] .sidebar{display:flex}
body[data-studyhub-view][data-studyhub-view] .layout{padding:18px 14px 38px}
}


/* Knowledge graph screen: three-column diagnostic workspace. */
.master-graph{display:grid;gap:22px}
.master-page-title{position:relative}
.master-page-title>span{color:#aa91ff;font-family:"DM Mono",monospace;font-size:12px;font-weight:700;letter-spacing:.1em}
.master-page-title h1{margin:6px 0;color:#fff;font-size:31px}
.master-page-title p{margin:0;color:#99a9d0}
.route-btn{position:absolute;right:0;bottom:0;border:1px solid #7d5eea;border-radius:10px;padding:10px 15px;background:#271965;color:#dbcfff;font:600 13px inherit;cursor:pointer}
.master-graph-grid{display:grid;grid-template-columns:310px minmax(560px,1fr) 380px;gap:18px}
.master-diagnosis,.graph-canvas,.knowledge-detail{border:1px solid #283f75;border-radius:16px;background:#0d1936}
.master-diagnosis{padding:20px}
.master-diagnosis h2{margin:0;color:#fff;font-size:19px}
.master-diagnosis h2 i{margin-right:7px;color:#987dff}
.master-diagnosis>p{margin:8px 0 19px;color:#91a1c7;font-size:12px;line-height:1.6}
.master-diagnosis>label{display:grid;gap:8px;color:#b6c3e3;font-size:12px}
.master-diagnosis>label button{display:flex;align-items:center;justify-content:space-between;border:1px solid #4c4b97;border-radius:9px;padding:13px;background:#151e4b;color:#e7e2ff;font:600 15px inherit}
.master-diagnosis article{margin-top:18px;border:1px solid #283d6c;border-radius:12px;padding:13px;background:#111d3d}
.master-diagnosis article h3{margin:0;color:#eef3ff;font-size:15px}
.master-diagnosis article h3 i{color:#ff6e83;margin-right:7px}
.master-diagnosis article h3 b{display:inline-grid;place-items:center;width:19px;height:19px;border-radius:50%;background:#692c47;color:#ff96a6;font-size:11px}
.master-diagnosis article p{margin:9px 0;color:#8fa1c6;font-size:11px;line-height:1.55}
.breakpoints button{display:flex;align-items:center;justify-content:space-between;width:100%;margin-top:8px;border:1px solid #524c9d;border-left:4px solid #865df2;border-radius:8px;padding:10px;background:#1a2350;color:#dedaff;text-align:left;font:600 12px inherit;cursor:pointer}
.breakpoints button{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:9px;align-items:center}
.breakpoints button>span{display:grid;gap:4px;min-width:0}
.breakpoints button>span>b{color:#f0ecff;font-size:13px;line-height:1.35;overflow-wrap:anywhere}
.breakpoints button>span>small{color:#afbee4;font:500 11px/1.55 inherit;overflow-wrap:anywhere}
.breakpoints button>i{color:#b09bff}
.graph-weak-list h3 i{color:#ff617e!important}
.graph-weak-list button{display:grid;grid-template-columns:1fr auto 13px;gap:7px;align-items:center;width:100%;border:0;border-bottom:1px solid #26385f;padding:10px 0;background:transparent;color:#d7e2fc;text-align:left;font:600 12px inherit;cursor:pointer}
.graph-weak-list button b{color:#ff718a}
.graph-weak-list button:nth-of-type(2) b{color:#ffc05d}
.graph-evidence{background:#101b39!important}
.graph-evidence h3 i{color:#92a7ff!important}
.graph-evidence p{display:grid;grid-template-columns:9px 1fr;gap:6px;margin:7px 0!important}
.graph-evidence p>b{color:#ff5c7a}
.graph-evidence p:nth-of-type(2)>b{color:#ffaf58}
.graph-evidence p span{grid-column:2;color:#9caed1}
.graph-canvas{position:relative;display:grid;grid-template-rows:58px 1fr 47px;overflow:hidden;min-height:780px;background:radial-gradient(circle at 50% 43%,rgba(69,45,184,.26),transparent 32%),radial-gradient(circle at 18% 22%,rgba(37,95,220,.13),transparent 20%),#0e1a37}
.graph-canvas>header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #223861;padding:0 18px}
.graph-canvas>header h2{margin:0;color:#fff;font-size:18px}
.graph-canvas>header h2 i{color:#8b70ff;margin-right:8px}
.graph-canvas>header span{color:#8394be;font-size:11px}
.graph-canvas>header span b,.graph-canvas>header span i,.graph-canvas>header span em,.graph-canvas>header span u{display:inline-block;width:10px;height:10px;margin:0 4px;border-radius:50%;background:#54e2b8;text-decoration:none}
.graph-canvas>header span i{background:#4e8cf4}
.graph-canvas>header span em{background:#ffbd56}
.graph-canvas>header span u{background:#a1adcc}
.constellation{position:relative;min-height:670px}
.constellation svg{position:absolute;inset:5% 6%;width:88%;height:88%}
.map-node{position:absolute;z-index:1;display:grid;place-items:center;width:85px;height:85px;border:2px solid #536fae;border-radius:50%;background:#142558;color:#dae9ff;font:700 16px inherit;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease}
.map-node i{font-style:normal;font-size:23px}
.map-node small{position:absolute;top:-28px;min-width:max-content;border:1px solid #364a8b;border-radius:16px;padding:6px 10px;background:#121e48;color:#b9c7e7;font-size:10px;font-weight:500}
.map-node:hover,.map-node.selected{transform:scale(1.12)}
.node-limit{top:7%;left:45%;border-color:#53dcb5;background:#11554e;box-shadow:0 0 25px #45cfab}
.node-continuity{top:27%;left:18%;border-color:#3f7fff;box-shadow:0 0 24px rgba(48,125,255,.65)}
.node-differentiable{top:27%;right:17%;border-color:#3f7fff;box-shadow:0 0 24px rgba(48,125,255,.65)}
.node-derivative{top:40%;left:43%;width:118px;height:118px;border-color:#a86cff;background:#47208e;box-shadow:0 0 35px rgba(157,100,255,.95);font-size:19px}
.node-monotonic{top:55%;left:22%;border-color:#4985ff}
.node-extreme{top:55%;right:20%;border-color:#ffac4b;background:#653e14;box-shadow:0 0 28px rgba(255,168,69,.7)}
.node-integral{bottom:6%;left:44%;border-color:#8491c5;background:#1a2444}
.node-definite{bottom:6%;right:17%;border-color:#8491c5;background:#1a2444}
.node-theorem{bottom:6%;left:17%;border-color:#8491c5;background:#1a2444}
.graph-canvas footer{display:flex;align-items:center;gap:0;padding:10px 18px}
.graph-canvas footer button{border:1px solid #354b80;padding:7px 11px;background:#111f46;color:#cbd7f7;font:600 12px inherit}
.graph-canvas footer button:first-child{border-radius:8px 0 0 8px}
.graph-canvas footer button:nth-child(3){border-radius:0 8px 8px 0}
.graph-canvas footer button:last-child{margin-left:auto;border-radius:8px;color:#c5b7ff}
.knowledge-detail{padding:20px}
.knowledge-detail>header{display:flex;align-items:center;justify-content:space-between}
.knowledge-detail>header h2{margin:0;color:#fff;font-size:18px}
.knowledge-detail>header h2 i{color:#7998ff;margin-right:8px}
.knowledge-detail>header button{border:1px solid #4b478b;border-radius:9px;padding:9px 10px;background:#171f4b;color:#bcaeff;font:600 11px inherit}
.knowledge-detail>article{margin-top:17px;border:1px solid #2b416f;border-radius:13px;padding:17px;background:#111e41}
.detail-kp-icon{display:inline-grid;place-items:center;width:54px;height:54px;border-radius:50%;background:#574229;color:#ffbf68;font-size:27px}
.knowledge-detail h3{display:inline-block;margin:0 0 0 10px;color:#fff;font-size:22px;vertical-align:top}
.knowledge-detail h3 span{border-radius:13px;padding:5px 8px;background:#52331e;color:#ffb35e;font-size:11px}
.knowledge-detail [data-kp-sub]{margin:-24px 0 16px 67px;color:#99aacd;font-size:12px}
.knowledge-detail blockquote{margin:0;border-radius:11px;padding:13px 15px;background:#202d57;color:#b9c9ed;font-size:13px;line-height:1.7}
.detail-metrics{display:grid;grid-template-columns:repeat(3,1fr);margin:14px 0;border:1px solid #293f6d;border-radius:10px;padding:15px 5px}
.detail-metrics span{text-align:center}
.detail-metrics span+span{border-left:1px solid #29406e}
.detail-metrics b{display:block;color:#ff7187;font-size:25px}
.detail-metrics span:nth-child(2) b,.detail-metrics span:nth-child(3) b{color:#e7efff}
.detail-metrics small{color:#91a2c9;font-size:11px}
.related-questions{border:1px solid #29406c;border-radius:10px;padding:13px}
.related-questions h4{margin:0 0 9px;color:#fff;font-size:14px}
.related-questions h4>b{border-radius:12px;padding:3px 6px;background:#6a3149;color:#ff9dad;font-size:10px}
.related-questions h4 button{float:right;border:0;background:transparent;color:#a899ed;font:600 10px inherit}
.related-questions p{display:flex;justify-content:space-between;margin:0;border-top:1px solid #263a65;padding:10px 0;color:#c3d0ee;font-size:12px}
.related-questions p span{border-radius:7px;padding:4px 6px;background:#4a2942;color:#ff94a4;font-size:10px}
.graph-detail-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:13px}
.graph-detail-actions button{border:1px solid #354c83;border-radius:9px;padding:11px;background:#15254b;color:#dce7ff;font:600 12px inherit;cursor:pointer}
.graph-detail-actions .btn{border-color:#8966ff}
.graph-detail-actions button i{margin-right:6px;color:#a78bff}
@media(max-width:1220px){.master-graph-grid{grid-template-columns:280px minmax(470px,1fr)}
.knowledge-detail{grid-column:span 2}
.graph-canvas{min-height:680px}
}
@media(max-width:820px){.route-btn{position:static;margin-top:12px}
.master-graph-grid{grid-template-columns:1fr}
.knowledge-detail{grid-column:auto}
.graph-canvas{min-height:640px}
.constellation{min-height:560px}
.map-node{width:60px;height:60px;font-size:12px}
.node-derivative{width:83px;height:83px}
.map-node i{font-size:16px}
.map-node small{display:none}
.node-continuity{left:12%}
.node-differentiable{right:11%}
.node-monotonic{left:14%}
.node-extreme{right:14%}
.node-theorem{left:11%}
.node-definite{right:11%}
}

/* Dynamic knowledge map: source labels live in the detail panel, never over nodes. */
.master-graph-grid{grid-template-columns:290px minmax(620px,1fr) 330px}
.graph-ai-refresh{display:flex;width:100%;align-items:center;justify-content:center;gap:8px;margin-top:12px;border:1px solid #7d63e9;border-radius:9px;padding:10px;background:#2c2070;color:#e9e2ff;font:700 12px inherit;cursor:pointer}
.graph-ai-refresh:hover{background:#3a278f}.graph-ai-refresh:disabled{opacity:.72;cursor:wait}
.graph-ai-summary button{display:grid;gap:3px;width:100%;margin-top:8px;border:0;border-left:3px solid #8f71ff;border-radius:6px;padding:7px 8px;background:#172757;color:#dce5ff;text-align:left;font:inherit;cursor:pointer}.graph-ai-summary button:hover{background:#24366c}.graph-ai-summary button b{font-size:12px}.graph-ai-summary button span{color:#9db0dd;font-size:11px;line-height:1.45}
.graph-evidence p{display:block!important;overflow-wrap:anywhere;word-break:normal;line-height:1.65}.graph-evidence p>b,.graph-evidence p span{display:inline;margin-right:5px}
.graph-canvas{grid-template-rows:58px 1fr 47px;min-height:590px;overflow:hidden}.constellation{min-height:485px;overflow:hidden}.constellation svg{inset:0;width:100%;height:100%}.map-link{fill:none;stroke:#566fae;stroke-width:2;stroke-dasharray:5 6;opacity:.82}.map-link-ai{stroke:#8c73ee;stroke-width:3;stroke-dasharray:none;opacity:.9}.map-root{position:absolute;z-index:2;left:50%;top:13.1%;display:grid;place-items:center;width:164px;min-height:66px;transform:translate(-50%,-50%);border:1px solid #9278ff;border-radius:13px;padding:8px 13px;background:linear-gradient(145deg,#382477,#171044);box-shadow:0 0 30px rgba(132,102,255,.46);color:#fff;text-align:center}.map-root i{font-size:18px;color:#d5c8ff}.map-root b{max-width:142px;font-size:15px;line-height:1.25;overflow-wrap:anywhere}.map-root small{color:#c5b8fb;font-size:10px}.map-node-layer{position:absolute;inset:0}.map-node{position:absolute;z-index:3;display:grid;grid-template-columns:20px 1fr;grid-template-rows:auto auto;column-gap:6px;align-items:center;width:190px;min-height:62px;transform:translate(-50%,-50%);border:1px solid #506aab;border-radius:10px;padding:8px 10px;background:#142558;color:#edf3ff;text-align:left;font:700 12px inherit;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease}.map-node i{grid-row:span 2;font-size:15px}.map-node b{line-height:1.3;overflow-wrap:anywhere}.map-node small{position:static;min-width:0;border:0;padding:0;background:none;color:#aebfe7;font-size:10px;font-weight:500}.map-node:hover,.map-node.selected{transform:translate(-50%,-50%) scale(1.06);z-index:5}.map-node-mastered{border-color:#54ddb9;background:#11544e;box-shadow:0 0 20px rgba(75,213,176,.35)}.map-node-review{border-color:#538aff;background:#142a5a}.map-node-weak{border-color:#ffb14f;background:#603c17;box-shadow:0 0 22px rgba(255,172,70,.4)}.map-node-unlearned{border-color:#8796c0;background:#1a274a;color:#d4dcf4}.map-node-unlearned small{color:#aeb8d6}
.knowledge-detail>article{padding:16px}.detail-kp-head{display:flex;align-items:center;gap:11px;margin-bottom:15px}.detail-kp-icon{flex:0 0 54px}.knowledge-detail h3{display:block;margin:0;color:#fff;font-size:21px;line-height:1.35;overflow-wrap:anywhere}.knowledge-detail h3 span{display:inline-block;margin-left:5px;vertical-align:middle}.knowledge-detail [data-kp-sub]{margin:4px 0 0;color:#99aacd;font-size:12px;line-height:1.5;overflow-wrap:anywhere}.detail-source{margin:10px 0 0;border-left:3px solid #6b86db;padding:7px 0 7px 9px;color:#aebfe5;font-size:12px;line-height:1.55;overflow-wrap:anywhere}.knowledge-detail blockquote{overflow-wrap:anywhere}
@media(max-width:1320px){.master-graph-grid{grid-template-columns:270px minmax(510px,1fr)}.knowledge-detail{grid-column:span 2}}
@media(max-width:820px){.master-graph-grid{grid-template-columns:1fr}.knowledge-detail{grid-column:auto}.graph-canvas{min-height:560px}.constellation{min-height:455px}.map-root{width:98px;height:98px}.map-root b{font-size:12px}.map-node{width:68px;height:68px;padding:5px;font-size:10px}.map-node i{font-size:12px}.map-node b{max-width:56px}.map-node small{font-size:8px}.graph-canvas>header span{display:none}}
/* Compact three-column diagnosis view: side panels scroll independently, while
   the map remains fully visible without a tall empty canvas. */
.master-graph-grid{align-items:stretch}
.graph-canvas{min-height:580px}
.constellation{min-height:475px}
.map-root{top:8.9%}
.master-diagnosis,.knowledge-detail{box-sizing:border-box;max-height:calc(100vh - 145px);overflow:auto}
.master-diagnosis>p{margin-bottom:12px}.master-diagnosis article{margin-top:12px;padding:11px}
@media(min-width:1321px){.master-diagnosis,.graph-canvas,.knowledge-detail{height:min(960px,calc(100vh - 145px));min-height:720px}.graph-canvas{min-height:0}.constellation{height:100%;min-height:0}}
@media(max-width:820px){.master-diagnosis,.knowledge-detail{max-height:none;overflow:visible}.graph-canvas{min-height:560px}.constellation{min-height:455px}}

/* Knowledge map: cards and connectors share one measured layout. */
.graph-canvas .constellation{overflow:auto;scrollbar-color:#4c60a0 transparent}
.graph-canvas .map-layout{position:relative;display:flex;box-sizing:border-box;min-height:100%;flex-direction:column;justify-content:center;padding:24px 22px 36px}
.graph-canvas .map-layout svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}
.graph-canvas .map-layout .map-root{position:relative;left:auto;top:auto;right:auto;bottom:auto;box-sizing:border-box;width:164px;min-height:70px;margin:0 auto;transform:none}
.graph-canvas .map-layout .map-node-layer{position:relative;inset:auto;display:grid;grid-template-columns:repeat(var(--graph-columns),minmax(0,1fr));align-items:start;gap:18px;width:100%;margin-top:68px}
.graph-canvas .map-branch{display:flex;min-width:0;flex-direction:column;align-items:center;gap:22px}
.graph-canvas .map-layout .map-node{position:relative;left:auto;right:auto;top:auto;bottom:auto;box-sizing:border-box;width:min(100%,170px);height:auto;min-height:68px;transform:none}
.graph-canvas .map-layout .map-node:hover,.graph-canvas .map-layout .map-node.selected{transform:scale(1.035)}
.graph-canvas .map-layout .map-link{stroke:#617cad;stroke-width:2;stroke-dasharray:none;opacity:.7;stroke-linecap:round;stroke-linejoin:round}
.graph-canvas .map-layout .map-link-ai{stroke:#8e7ce3;opacity:.85}

/* The prototype must remain legible in an offline competition environment.
   These compact fallbacks keep navigation/action glyphs visible when the CDN
   Font Awesome file is unavailable. */
i.fa-solid,i.fa-regular{font-family:Arial,"Noto Sans SC",sans-serif;font-style:normal!important;font-weight:700!important}i.fa-house:before{content:"⌂"}i.fa-folder-open:before{content:"▰"}i.fa-circle-nodes:before{content:"⌘"}i.fa-pen-to-square:before{content:"✎"}i.fa-book-bookmark:before{content:"▣"}i.fa-wand-magic-sparkles:before{content:"✦"}i.fa-calendar-days:before,i.fa-calendar:before{content:"▦"}i.fa-chart-column:before{content:"▥"}i.fa-robot:before{content:"◉"}i.fa-file-circle-check:before{content:"▤"}i.fa-sparkles:before{content:"✦"}i.fa-magnifying-glass:before{content:"⌕"}i.fa-bell:before{content:"♧"}i.fa-file-pdf:before{content:"PDF";font-size:.55em}i.fa-file-lines:before{content:"▤"}i.fa-file-word:before{content:"W"}i.fa-file:before{content:"▯"}i.fa-image:before{content:"▧"}i.fa-microphone:before{content:"♩"}i.fa-camera:before{content:"▣"}i.fa-paste:before{content:"▤"}i.fa-bolt:before{content:"ϟ"}i.fa-bullseye:before{content:"◎"}i.fa-chart-line:before,i.fa-arrow-trend-up:before{content:"⌁"}i.fa-check:before,i.fa-circle-check:before{content:"✓"}i.fa-circle-notch:before{content:"◌"}i.fa-circle:before{content:"○"}i.fa-clock:before{content:"◷"}i.fa-play:before{content:"▶"}i.fa-pause:before{content:"Ⅱ"}i.fa-arrow-left:before{content:"←"}i.fa-arrow-right:before,i.fa-chevron-right:before{content:"›"}i.fa-chevron-left:before{content:"‹"}i.fa-chevron-down:before{content:"⌄"}i.fa-chevron-up:before{content:"⌃"}i.fa-paper-plane:before{content:"➤"}i.fa-lightbulb:before{content:"◉"}i.fa-book-open:before{content:"▤"}i.fa-shuffle:before{content:"↝"}i.fa-rotate-right:before{content:"↻"}i.fa-trash-can:before{content:"⌫"}i.fa-circle-user:before{content:"●"}i.fa-keyboard:before{content:"⌨"}i.fa-wave-square:before{content:"⌁"}i.fa-people-group:before{content:"♧"}i.fa-clipboard-check:before{content:"☑"}i.fa-clipboard-list:before{content:"☷"}i.fa-note-sticky:before{content:"▧"}i.fa-trophy:before{content:"♜"}i.fa-fire:before{content:"♨"}i.fa-triangle-exclamation:before{content:"⚠"}i.fa-square:before{content:"□"}i.fa-square-check:before{content:"☑"}

/* 今日闯关以真实学习记录推进，不是孤立的装饰清单。 */
.daily-quest-card{position:relative;overflow:hidden;border:1px solid #3b4f92;border-radius:18px;padding:22px 24px;background:radial-gradient(circle at 92% 4%,rgba(120,90,241,.24),transparent 28%),linear-gradient(120deg,#10234b,#17204a 58%,#121a41);box-shadow:0 18px 36px rgba(0,0,0,.16)}
.daily-quest-card:before{content:"";position:absolute;inset:auto -80px -130px auto;width:310px;height:310px;border-radius:50%;background:radial-gradient(circle,rgba(71,220,190,.15),transparent 66%);pointer-events:none}.daily-quest-loading{display:flex;min-height:116px;align-items:center;justify-content:center;gap:10px;color:#b6c7ee;font-weight:700}.daily-quest-loading i{color:#9d7aff;font-size:20px}.daily-quest-loading.failed i{color:#ffb55b}
.daily-quest-top,.daily-quest-title,.daily-quest-streak,.daily-quest-progress-copy,.daily-quest-footer,.daily-quest-footer>div{display:flex;align-items:center}.daily-quest-top{position:relative;z-index:1;justify-content:space-between;gap:20px}.daily-quest-title{gap:13px}.daily-quest-mark{display:grid;place-items:center;width:44px;height:44px;border:1px solid #9274ff;border-radius:14px;background:linear-gradient(145deg,#7550ef,#3e278b);color:#fff;box-shadow:0 0 22px rgba(126,86,255,.35)}.daily-quest-title p{margin:0 0 4px;color:#bbaaff;font-size:10px;font-weight:800;letter-spacing:1.2px}.daily-quest-title h2{margin:0;color:#fff;font-size:20px;line-height:1.3}.daily-quest-streak{gap:7px;border:1px solid #39517f;border-radius:12px;padding:9px 12px;background:rgba(8,22,57,.5);color:#aec0e8;font-size:11px;white-space:nowrap}.daily-quest-streak i{color:#ffb052}.daily-quest-streak b{color:#fff;font-size:18px}
.daily-quest-progress{position:relative;z-index:1;margin:18px 0}.daily-quest-progress-copy{justify-content:space-between;gap:15px;margin-bottom:9px}.daily-quest-progress-copy b{color:#f4f7ff;font-size:14px}.daily-quest-progress-copy span{color:#9cadcf;font-size:12px}.daily-progress-track{height:7px;overflow:hidden;border-radius:999px;background:#0a1533;box-shadow:inset 0 1px 2px rgba(0,0,0,.45)}.daily-progress-track i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#55d5bf,#8671ff);box-shadow:0 0 14px rgba(119,101,255,.75);transition:width .35s ease}
.daily-quest-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.daily-quest-step{display:grid;grid-template-columns:auto auto minmax(0,1fr) auto;align-items:start;gap:8px;min-height:132px;border:1px solid #344a7e;border-radius:13px;padding:14px 12px;background:rgba(10,25,61,.66);color:#e9efff;text-align:left;font:inherit;cursor:pointer;transition:transform .18s ease,border-color .18s ease,background .18s ease}.daily-quest-step:hover{transform:translateY(-3px);border-color:#8e75ff;background:#1c2b60}.daily-step-number{display:grid;place-items:center;width:19px;height:19px;border-radius:50%;background:#283e72;color:#cbd8fa;font-size:10px;font-weight:800}.daily-step-icon{display:grid;place-items:center;width:28px;height:28px;border-radius:9px;background:#243b74;color:#a88cff;font-size:13px}.daily-step-copy{display:grid;min-width:0;gap:5px}.daily-step-copy b{color:#f5f7ff;font-size:13px;line-height:1.35}.daily-step-copy small{min-height:34px;color:#9caed4;font-size:10px;line-height:1.55}.daily-step-copy em{margin-top:auto;color:#8da3d5;font-size:11px;font-style:normal}.daily-step-copy em strong{margin-left:4px;color:#65e0c1;font-weight:800}.daily-step-arrow{align-self:center;color:#7188bc;font-size:11px}
.daily-quest-step.completed{border-color:#45bfa6;background:linear-gradient(145deg,rgba(32,120,112,.43),rgba(17,47,78,.76))}.daily-quest-step.completed .daily-step-number{background:#4bd3b4;color:#052c2e}.daily-quest-step.completed .daily-step-icon{background:#276e69;color:#79f1d4}.daily-quest-step.completed .daily-step-copy em{color:#79e7cf}.daily-quest-footer{position:relative;z-index:1;justify-content:space-between;gap:15px;margin-top:17px;padding-top:16px;border-top:1px solid rgba(85,110,169,.45)}.daily-quest-footer>div{gap:8px;color:#bac8e7;font-size:12px}.daily-quest-footer>div i{color:#f5bd63}.daily-quest-action{min-width:150px;white-space:nowrap}.daily-quest-action.claimed{border-color:#397a70;background:#183c46;color:#92e7d4;box-shadow:none}.daily-quest-action:disabled{cursor:default;opacity:1}
@media(max-width:1120px){.daily-quest-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:620px){.daily-quest-card{padding:18px 15px}.daily-quest-top{align-items:flex-start}.daily-quest-title h2{font-size:17px}.daily-quest-streak span{display:none}.daily-quest-progress-copy{align-items:flex-start;flex-direction:column;gap:5px}.daily-quest-grid{grid-template-columns:1fr}.daily-quest-step{min-height:105px}.daily-step-copy small{min-height:0}.daily-quest-footer{align-items:stretch;flex-direction:column}.daily-quest-action{width:100%}}
.side-nav button .nav-inline-icon{display:block;flex:0 0 20px;width:20px;height:20px;color:#a9b6e5}
.side-nav button.active .nav-inline-icon{color:#ceb9ff}

/* Learning desk: aurora artwork, luminous quest and compact live-data cards. */
body[data-studyhub-view="home"] .layout{max-width:1840px}
.master-home{position:relative;isolation:isolate;gap:20px}
.master-home::before{content:"";position:absolute;z-index:-1;top:-28px;left:-34px;right:-34px;height:405px;background:url("assets/study-hero-robot.png") center 46%/cover no-repeat;pointer-events:none}
.master-greeting{box-sizing:border-box;min-height:125px;padding:25px 34px 0;text-shadow:0 3px 18px rgba(0,0,0,.6)}
.master-greeting h1{font-size:clamp(29px,2.45vw,44px);font-weight:800;line-height:1.2}
.master-greeting h1 i{margin-left:5px;color:#ffc765;font-size:.72em;filter:drop-shadow(0 0 12px rgba(255,190,90,.75))}
.master-greeting p{margin-top:8px;color:#e1e8ff;font-size:15px;letter-spacing:.02em}
.master-banner{box-sizing:border-box;min-height:218px;border:1px solid #7182ff;border-radius:22px;background:rgba(5,15,58,.43);box-shadow:inset 0 0 0 1px rgba(147,103,255,.32),0 0 22px rgba(66,93,255,.35),0 18px 42px rgba(0,0,0,.35)}
.master-banner::before{background:radial-gradient(circle at 6% 22%,#fff 0 1px,transparent 3px),radial-gradient(circle at 37% 71%,#b7a4ff 0 1px,transparent 3px),radial-gradient(circle at 70% 18%,#fff 0 1px,transparent 3px),radial-gradient(circle at 91% 64%,#81d9ff 0 1px,transparent 3px);opacity:.55;animation:homeStars 7s ease-in-out infinite}
.master-banner::after{background:linear-gradient(90deg,rgba(3,13,52,.78),rgba(5,15,58,.39) 52%,rgba(8,16,58,.12));}
.master-banner-robot{display:none}
.master-banner-bubble{box-sizing:border-box;display:grid;gap:6px;min-width:0;max-width:48%;margin:22px 0 0 38px;text-shadow:0 3px 13px #060e30}
.master-banner-bubble span{color:#c4adff;font-size:14px}
.master-banner-bubble b{color:#fff;font-size:clamp(20px,1.8vw,28px);font-weight:800;line-height:1.35}
.master-banner-bubble p{color:#d8e3ff;font-size:14px}
.master-banner-continue{top:auto;bottom:21px;left:38px;min-width:200px;padding:12px 22px;border:1px solid #c1a4ff;border-radius:999px;background:linear-gradient(110deg,#8057ff,#5b32e7);box-shadow:0 0 20px rgba(123,70,255,.8);font-size:15px;font-weight:800;transition:transform .22s ease,box-shadow .22s ease}
.master-banner-continue:hover{transform:translateY(-3px);box-shadow:0 0 30px rgba(151,102,255,.95)}
.master-banner-note{top:38px;right:42px;bottom:auto;color:#e5dcff;font-size:15px;font-weight:700;line-height:1.8;transform:rotate(-7deg);text-shadow:0 2px 14px #071031}
.daily-quest-card{border:1px solid #796bff;border-radius:24px;padding:27px 31px 21px;background:linear-gradient(110deg,rgba(5,22,69,.93),rgba(8,24,76,.82) 60%,rgba(16,17,75,.88)),url("assets/study-hero-robot.png") center 62%/cover no-repeat;box-shadow:inset 0 0 0 1px rgba(83,177,255,.24),0 0 22px rgba(86,59,255,.28),0 18px 42px rgba(0,0,0,.34)}
.daily-quest-card::before{inset:0;background:radial-gradient(circle at 78% 3%,rgba(109,113,255,.2),transparent 32%);animation:homeLight 6s ease-in-out infinite}
.daily-quest-title{gap:17px}
.daily-quest-mark{width:56px;height:56px;border-radius:16px;font-size:22px;box-shadow:0 0 25px rgba(150,91,255,.7)}
.daily-quest-title p{font-size:11px;letter-spacing:2px}
.daily-quest-title h2{font-size:clamp(19px,1.65vw,27px)}
.daily-quest-streak{border-color:#5d57c3;border-radius:20px;padding:10px 16px;background:rgba(19,23,83,.76);font-size:12px}
.daily-quest-streak i{font-size:19px;filter:drop-shadow(0 0 8px rgba(255,133,71,.7))}
.daily-quest-progress{margin:21px 0 20px}
.daily-quest-progress-copy b{font-size:15px}
.daily-quest-progress-copy span{color:#b8aaff;font-size:12px}
.daily-progress-track{height:12px;border:1px solid rgba(89,131,230,.45);background:#071548}
.daily-progress-track i{background:linear-gradient(90deg,#48dcf8,#4bb8ff,#8c55ff);background-size:180% 100%;box-shadow:0 0 18px rgba(76,190,255,.8);animation:homeProgress 5s linear infinite}
.daily-quest-grid{gap:15px}
.daily-quest-step{box-sizing:border-box;grid-template-columns:59px minmax(0,1fr) 14px;grid-template-rows:24px 1fr auto;gap:5px 12px;min-height:154px;border-color:#4766d4;border-radius:15px;padding:14px;background:linear-gradient(145deg,rgba(15,45,115,.92),rgba(13,29,78,.91));box-shadow:inset 0 0 16px rgba(75,129,255,.15),0 0 11px rgba(33,90,218,.2)}
.daily-quest-step:nth-child(2),.daily-quest-step:nth-child(3){border-color:#35c8db;background:linear-gradient(145deg,rgba(6,87,116,.74),rgba(10,39,78,.88));box-shadow:inset 0 0 18px rgba(38,217,225,.12),0 0 12px rgba(38,217,225,.24)}
.daily-quest-step:nth-child(4){border-color:#7055e2;background:linear-gradient(145deg,rgba(47,36,113,.8),rgba(21,26,76,.92))}
.daily-quest-step:hover{transform:translateY(-5px);box-shadow:0 12px 24px rgba(0,0,0,.28),0 0 25px rgba(112,96,255,.4)}
.daily-step-number{grid-column:1;grid-row:1;width:25px;height:25px;background:#284b9b;font-size:12px}
.daily-step-icon{grid-column:1;grid-row:2/4;width:55px;height:55px;align-self:center;border-radius:17px;background:#2254a7;color:#c6e7ff;font-size:25px;box-shadow:0 0 20px rgba(59,117,255,.4)}
.daily-quest-step:nth-child(2) .daily-step-icon,.daily-quest-step:nth-child(3) .daily-step-icon{background:#107c9d;color:#9af4ff}
.daily-quest-step:nth-child(4) .daily-step-icon{background:#4c2ca9;color:#d7bbff}
.daily-step-copy{grid-column:2;grid-row:1/4;gap:7px;align-content:center}
.daily-step-copy b{font-size:14px}
.daily-step-copy small{min-height:39px;color:#b8c8ec;font-size:11px}
.daily-step-copy em{font-size:11px}
.daily-step-copy em strong{color:#65ebee}
.daily-step-arrow{grid-column:3;grid-row:3;color:#bbadff}
.daily-quest-step.completed .daily-step-icon{background:#16868d;color:#b4ffff}
.daily-quest-footer{margin-top:20px;padding-top:17px}
.daily-quest-footer>div{font-size:14px}
.daily-quest-footer>div i{font-size:25px;filter:drop-shadow(0 0 10px #ffbd5c)}
.daily-quest-action{min-width:220px;padding:12px 20px;border:1px solid #b2a0ff;border-radius:999px;background:linear-gradient(105deg,#9b65ff,#6333e8);box-shadow:0 0 22px rgba(132,78,255,.66);font-size:15px;font-weight:800}
.master-home-grid,.master-home-bottom{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.master-home .master-card{border-color:#4d5fbd;border-radius:16px;background:linear-gradient(160deg,rgba(18,39,99,.9),rgba(6,22,67,.97) 55%,rgba(13,27,79,.96));box-shadow:inset 0 0 0 1px rgba(95,92,219,.16),0 10px 27px rgba(0,0,0,.28);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.master-home .master-card:hover{transform:translateY(-3px);border-color:#8f82ff;box-shadow:0 15px 30px rgba(0,0,0,.32),0 0 21px rgba(88,104,255,.22)}
.master-home .master-card-head h2{font-size:16px}
.master-home .master-card-head h2 i{color:#a77dff}
.master-tasks,.master-quick,.master-agent{box-sizing:border-box;min-height:322px;padding:18px 20px}
.task-summary{grid-template-columns:126px minmax(0,1fr);gap:12px}
.task-ring{position:relative;box-sizing:border-box;width:118px;height:118px;border:0;background:conic-gradient(#4ecdf7 0 var(--task-progress),#513bca var(--task-progress) 100%);box-shadow:0 0 19px rgba(104,101,255,.48)}
.task-ring::before{content:"";position:absolute;inset:11px;border-radius:50%;background:#0a1b4d;box-shadow:inset 0 0 14px rgba(0,0,0,.42)}
.task-ring b,.task-ring span{position:relative;z-index:1}
.task-ring b{font-size:27px}
.task-ring span{font-size:10px}
.master-task-list{max-height:258px;overflow:auto;scrollbar-color:#485bb0 transparent}
.master-task{min-width:0;border-color:#2b468a;background:rgba(16,43,106,.7)}
.master-task:hover{border-color:#708bff;background:#233d86}
.master-task.done>i{color:#4fe3c8}
.master-task span{min-width:0}
.master-task b,.master-task small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.master-task em{flex:none;border-radius:12px;padding:3px 7px;background:#293c91}
.master-card-footer{margin-top:18px;color:#a7b9ec}
.master-quick-actions{gap:10px}
.master-quick-actions label,.master-quick-actions button{min-width:0;border-color:#374fa5;background:rgba(23,43,111,.83);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.master-quick-actions label:hover,.master-quick-actions button:hover{transform:translateY(-3px);border-color:#988aff;box-shadow:0 0 15px rgba(107,85,255,.3)}
.master-quick-actions i{background:#3158d5;font-size:19px}
.master-quick-actions label:nth-child(2) i{background:#8a35d9}
.master-quick-actions label:nth-child(3) i{background:#217dce}
.master-quick-actions button i{background:#c8793c}
.master-agent>img{right:0;bottom:-22px;width:132px;opacity:.86;filter:drop-shadow(0 0 16px rgba(84,106,255,.48));animation:homeFloat 5s ease-in-out infinite}
.master-agent-steps{max-width:calc(100% - 78px)}
.master-agent-steps>div{border-bottom:1px solid rgba(77,105,170,.35);padding-bottom:5px}
.master-agent-steps .complete i{box-shadow:0 0 10px rgba(67,224,190,.38)}
.master-home-bottom>.master-card{box-sizing:border-box;min-height:225px;padding:18px 19px}
.weak-master-row{border-color:#294489;background:#122758}
.weak-master-row em b{background:linear-gradient(90deg,#7551ff,#a791ff)}
.material-master>button:hover{background:rgba(83,99,181,.14)}
.curve-master svg{filter:drop-shadow(0 0 6px rgba(120,76,255,.24))}
@keyframes homeLight{50%{opacity:.55}}
@keyframes homeStars{50%{opacity:1;transform:translateY(-5px)}}
@keyframes homeProgress{to{background-position:180% 0}}
@keyframes homeFloat{50%{transform:translateY(-8px)}}
@media(max-width:1120px){.master-home-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.master-agent{grid-column:span 2}.master-home-bottom{grid-template-columns:repeat(2,minmax(0,1fr))}.curve-master{grid-column:span 2}}
@media(max-width:980px){.master-banner-note{display:none}.master-banner-bubble{max-width:63%}.daily-quest-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:720px){body[data-studyhub-view="home"] .layout{padding:17px 14px 58px}.master-home::before{top:-17px;left:-14px;right:-14px;height:385px;background-position:67% center}.master-greeting{min-height:107px;padding:23px 15px 0}.master-greeting h1{font-size:25px}.master-greeting p{font-size:13px}.master-banner{min-height:240px}.master-banner-bubble{max-width:none;margin:20px 18px 0}.master-banner-bubble b{font-size:19px}.master-banner-bubble p{font-size:12px}.master-banner-continue{left:18px;right:18px;bottom:17px;min-width:0;padding:11px}.daily-quest-card{padding:20px 15px}.daily-quest-top{align-items:flex-start}.daily-quest-title{gap:10px}.daily-quest-mark{flex:none;width:42px;height:42px}.daily-quest-title h2{font-size:17px}.daily-quest-streak{padding:7px 8px}.daily-quest-grid,.master-home-grid,.master-home-bottom{grid-template-columns:1fr}.daily-quest-step{min-height:128px}.daily-quest-footer{align-items:stretch;flex-direction:column}.daily-quest-action{width:100%;min-width:0}.master-agent,.curve-master{grid-column:auto}.task-summary{grid-template-columns:108px minmax(0,1fr)}.task-ring{display:grid;width:98px;height:98px}.master-agent-steps{max-width:calc(100% - 70px)}}
@media(prefers-reduced-motion:reduce){.master-banner::before,.daily-quest-card::before,.daily-progress-track i,.master-agent>img{animation:none}.master-home .master-card,.master-quick-actions label,.master-quick-actions button,.daily-quest-step,.master-banner-continue{transition:none}}
i.fa-sun:before{content:"☀"}i.fa-moon:before{content:"☾"}i.fa-gift:before{content:"✦"}i.fa-record-vinyl:before{content:"◉"}

/* Dashboard artwork composed from the supplied visual direction. */
.master-home::before{height:420px;background-image:url("assets/home-aurora-room-v2.png");background-position:center bottom}
.master-banner{background:rgba(3,13,49,.17)}
.master-banner::after{background:linear-gradient(90deg,rgba(3,13,49,.78),rgba(3,13,49,.32) 44%,rgba(3,13,49,.1) 73%,rgba(3,13,49,.25))}
.master-banner-note{color:#fff;filter:drop-shadow(0 2px 5px #061136)}
.daily-quest-card{background:linear-gradient(105deg,rgba(3,14,55,.89),rgba(8,22,67,.78) 60%,rgba(18,17,70,.8)),url("assets/home-quest-night-v2.png") center/cover no-repeat}
.daily-quest-step{grid-template-columns:78px minmax(0,1fr) 12px;min-height:162px}
.daily-step-icon,.daily-quest-step.completed .daily-step-icon,.daily-quest-step:nth-child(2) .daily-step-icon,.daily-quest-step:nth-child(3) .daily-step-icon,.daily-quest-step:nth-child(4) .daily-step-icon{width:78px;height:78px;border-radius:20px;background-image:url("assets/home-quest-icons-v2.png");background-size:200% 200%;background-repeat:no-repeat;background-color:rgba(14,48,121,.55);box-shadow:0 0 24px rgba(47,132,255,.35)}
.daily-quest-step:nth-child(1) .daily-step-icon{background-position:0 0}
.daily-quest-step:nth-child(2) .daily-step-icon{background-position:100% 0}
.daily-quest-step:nth-child(3) .daily-step-icon{background-position:0 100%}
.daily-quest-step:nth-child(4) .daily-step-icon{background-position:100% 100%}
.daily-step-icon i{visibility:hidden}
.daily-quest-footer{min-height:79px;padding-left:124px}
.daily-quest-footer>div{min-width:0}
.daily-reward-art{position:absolute;left:-8px;bottom:-24px;width:126px;height:126px;object-fit:contain;filter:drop-shadow(0 0 14px rgba(153,86,255,.65));animation:homeFloat 5s ease-in-out infinite}
.master-tasks,.master-quick,.master-agent{min-height:350px}
.master-quick{padding-bottom:112px}
.home-folder-art{position:absolute;right:19%;bottom:27px;width:180px;max-width:58%;height:auto;pointer-events:none;filter:drop-shadow(0 0 15px rgba(102,73,255,.6));animation:homeFloat 6s ease-in-out infinite}
.master-quick-actions{position:relative;z-index:1}
.master-agent>img{right:-4px;bottom:-18px;width:158px;opacity:1;filter:drop-shadow(0 0 15px rgba(74,144,255,.5))}
.master-agent-steps{max-width:calc(100% - 96px)}
@media(max-width:1120px){.master-home::before{background-position:58% center}}
@media(max-width:720px){.master-home::before{height:386px;background-position:66% center}.daily-quest-step{min-height:134px}.daily-step-icon,.daily-quest-step.completed .daily-step-icon,.daily-quest-step:nth-child(2) .daily-step-icon,.daily-quest-step:nth-child(3) .daily-step-icon,.daily-quest-step:nth-child(4) .daily-step-icon{width:67px;height:67px}.daily-quest-step{grid-template-columns:67px minmax(0,1fr) 12px}.daily-quest-footer{min-height:0;padding-left:0}.daily-quest-footer>div{min-height:64px;padding-left:82px}.daily-reward-art{left:-5px;bottom:auto;top:-3px;width:82px;height:82px}.master-quick{padding-bottom:110px}.master-agent-steps{max-width:calc(100% - 80px)}}
@media(max-width:720px){.home-folder-art{bottom:-5px}}
@media(prefers-reduced-motion:reduce){.daily-reward-art,.home-folder-art{animation:none}}

/* A continuous fill keeps the completed quest visually whole; only the soft light moves. */
.daily-progress-track{position:relative;height:14px;overflow:hidden;border:1px solid rgba(105,157,255,.54);border-radius:999px;background:#071640;box-shadow:inset 0 1px 3px rgba(0,0,0,.5),0 0 11px rgba(47,127,255,.22)}
.daily-progress-track i{position:relative;display:block;height:100%;overflow:hidden;border-radius:inherit;background:linear-gradient(90deg,#54bfff 0%,#6a8aff 38%,#8d6eff 72%,#55d5fb 100%);background-size:100% 100%;box-shadow:0 0 17px rgba(88,164,255,.62);animation:none;transition:width .65s cubic-bezier(.2,.8,.2,1)}
.daily-progress-track i::after{content:"";position:absolute;top:-4px;bottom:-4px;left:-32%;width:32%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.04) 10%,rgba(255,255,255,.46) 50%,rgba(255,255,255,.04) 90%,transparent);filter:blur(5px);animation:quest-light-pass 4.2s ease-in-out infinite;pointer-events:none}
@keyframes quest-light-pass{0%,12%{transform:translateX(0)}70%,100%{transform:translateX(420%)}}
@media(prefers-reduced-motion:reduce){.daily-progress-track i{transition:none}.daily-progress-track i::after{animation:none;display:none}}

/* Sidebar artwork and navigation match the night-sky learning desk. */
body[data-studyhub-view] .sidebar{overflow-y:auto;overflow-x:hidden;padding:20px 12px 16px;border-right:1px solid #244174;background:linear-gradient(180deg,rgba(4,10,38,.28),rgba(4,12,42,.48) 57%,rgba(4,10,36,.18)),url("assets/sidebar-night-v3.png") center bottom/cover no-repeat #071332;box-shadow:inset -13px 0 23px rgba(3,9,30,.35);scrollbar-width:thin;scrollbar-color:#38539a transparent}
body[data-studyhub-view] .brand{gap:11px;padding:0 10px 18px;font-size:24px;text-shadow:0 2px 12px rgba(5,9,37,.75)}
body[data-studyhub-view] .brand-mark{border-color:#aaa0ff;background:linear-gradient(145deg,#7775ff,#5a3cdf);box-shadow:0 0 22px rgba(108,97,255,.9),inset 0 1px 8px rgba(255,255,255,.3)}
body[data-studyhub-view] .brand small{color:#bdc9ee}
body[data-studyhub-view] .side-nav{gap:3px}
body[data-studyhub-view] .side-nav button{height:42px;gap:14px;padding:0 16px;border-radius:10px;color:#c2d0f5;font-size:14px;text-shadow:0 1px 8px rgba(0,8,31,.8);transition:background .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease}
body[data-studyhub-view] .side-nav button .nav-inline-icon{flex:0 0 20px;width:20px;height:20px;color:#9eb8ff;filter:drop-shadow(0 0 4px rgba(83,115,244,.15))}
body[data-studyhub-view] .side-nav button:hover{border-color:rgba(118,107,238,.45);background:rgba(90,74,192,.3);color:#fff}
body[data-studyhub-view] .side-nav button.active{border-color:#7159df;background:linear-gradient(90deg,rgba(99,72,214,.94),rgba(71,50,171,.73));box-shadow:inset 3px 0 #cbaaff,0 0 20px rgba(101,61,248,.53),0 5px 15px rgba(19,12,81,.5);color:#fff}
body[data-studyhub-view] .side-nav button.active .nav-inline-icon{color:#f3eeff;filter:drop-shadow(0 0 6px rgba(215,196,255,.66))}
body[data-studyhub-view] .side-nav-group{display:grid;min-width:0}
body[data-studyhub-view] .side-nav-group-toggle{width:100%}
body[data-studyhub-view] .side-nav-group.current>.side-nav-group-toggle{border-color:rgba(135,113,255,.65);background:rgba(68,47,154,.6);color:#fff}
body[data-studyhub-view] .side-nav-chevron{width:14px;height:14px;margin-left:auto;fill:none;stroke:currentColor;stroke-width:1.8;transition:transform .2s ease}
body[data-studyhub-view] .side-nav-group.expanded .side-nav-chevron{transform:rotate(180deg)}
body[data-studyhub-view] .side-nav-group-items{display:grid;gap:3px;margin:3px 0 5px 20px;padding-left:9px;border-left:1px solid rgba(124,119,226,.4)}
body[data-studyhub-view] .side-nav-group-items[hidden]{display:none!important}
body[data-studyhub-view] .side-nav-group-items button{width:100%;height:38px;gap:11px;padding:0 12px;font-size:13px}
body[data-studyhub-view] .side-nav-group-items button .nav-inline-icon{flex-basis:17px;width:17px;height:17px}
body[data-studyhub-view] .sidebar-user{margin-top:auto;border:1px solid rgba(68,104,184,.6);background:rgba(7,23,64,.8);box-shadow:inset 0 1px rgba(175,193,255,.07),0 8px 18px rgba(0,0,0,.3);backdrop-filter:blur(8px)}
@media(max-width:1180px){body[data-studyhub-view] .sidebar{padding:20px 9px}body[data-studyhub-view] .brand{padding:0 5px 18px}body[data-studyhub-view] .side-nav button{justify-content:center;padding:0}body[data-studyhub-view] .side-nav-chevron{display:none}body[data-studyhub-view] .side-nav-group-items{margin:3px 0 5px;padding:0;border:0}body[data-studyhub-view] .side-nav-group-items button{height:38px}}
@media(max-width:860px){body[data-studyhub-view] .sidebar{overflow-y:hidden;overflow-x:auto;padding:6px 8px;background:#091638;border-top:1px solid #29477c;border-right:0;box-shadow:0 -4px 20px rgba(1,7,30,.45)}body[data-studyhub-view] .side-nav button{min-width:57px;height:47px}body[data-studyhub-view] .side-nav-group{flex:0 0 57px;width:57px}body[data-studyhub-view] .side-nav-group-items{position:fixed;z-index:100;right:8px;bottom:70px;left:8px;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin:0;padding:10px;border:1px solid #5965b8;border-radius:14px;background:#101c42;box-shadow:0 12px 32px rgba(0,0,0,.6)}body[data-studyhub-view] .side-nav-group-items button{height:46px;justify-content:flex-start;padding:0 12px}body[data-studyhub-view] .side-nav-group-items button span{display:inline}}
@media(prefers-reduced-motion:reduce){body[data-studyhub-view] .side-nav button{transition:none}}

/* Each workspace has its own illustrated backdrop, kept behind working content. */
body[data-studyhub-view="knowledge"]{--section-art:url("assets/page-knowledge-v1.png")}
body[data-studyhub-view="videos"]{--section-art:url("assets/page-videos-v1.png")}
body[data-studyhub-view="graph"]{--section-art:url("assets/page-graph-v1.png")}
body[data-studyhub-view="practice"]{--section-art:url("assets/page-practice-v1.png")}
body[data-studyhub-view="mistakes"]{--section-art:url("assets/page-mistakes-v1.png")}
body[data-studyhub-view="training"]{--section-art:url("assets/page-training-v1.png")}
body[data-studyhub-view="planner"]{--section-art:url("assets/page-planner-v1.png")}
body[data-studyhub-view="report"]{--section-art:url("assets/page-report-v1.png")}
body[data-studyhub-view="tutor"]{--section-art:url("assets/page-tutor-v1.png")}
body[data-studyhub-view="exam"]{--section-art:url("assets/page-exam-v1.png")}
body[data-studyhub-view]:not([data-studyhub-view="home"]) .workspace{position:relative;isolation:isolate;background-color:#050a1b}
body[data-studyhub-view]:not([data-studyhub-view="home"]) .workspace::before{content:"";position:absolute;z-index:-1;inset:0 0 auto;height:640px;background-image:linear-gradient(90deg,rgba(5,10,27,.55) 0%,rgba(5,10,27,.34) 48%,rgba(5,10,27,.02) 100%),linear-gradient(180deg,rgba(5,10,27,.1) 0%,rgba(5,10,27,.24) 34%,rgba(5,10,27,.72) 73%,#050a1b 100%),var(--section-art);background-position:center top,center top,right top;background-size:cover;background-repeat:no-repeat;pointer-events:none}
@media(max-width:720px){body[data-studyhub-view]:not([data-studyhub-view="home"]) .workspace::before{height:440px;background-image:linear-gradient(180deg,rgba(5,10,27,.26) 0%,rgba(5,10,27,.52) 52%,#050a1b 100%),var(--section-art);background-position:center top,right top}}
@media print{body[data-studyhub-view] .workspace::before{display:none!important}}