:root{--primary: #7c3aed;--primary-light: #ede9fe;--primary-mid: #a855f7;--primary-d1: #6945dc;--primary-d2: #2563eb;--primary-d3: #0891b2;--primary-d4: #7c3aed;--primary-light-d1: #eee8ff;--primary-light-d2: #e8f0fe;--primary-light-d3: #e6fbff;--primary-light-d4: #f3e8ff;--dashboard-bg: #f8f7ff;--bg: #f8f7ff;--card: #ffffff;--text: #1a1a2e;--sub: #6b7280;--border: #e5e7eb;--navy: #0f172a;--danger: #dc2626;--success: #15803d;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--nav-h: 72px;color:var(--text);background:var(--dashboard-bg);font-family:Noto Sans KR,Jua,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--dashboard-bg)}button,input,select,textarea{font:inherit}button{cursor:pointer}h1,h2,h3,p{margin:0;letter-spacing:0}a{color:var(--primary)}.section{display:none}.section.active{display:block}.app-shell{min-height:100vh;background:var(--dashboard-bg)}.app-header-nova{display:none}.container{width:min(480px,100%);margin:0 auto;padding:24px 16px calc(var(--nav-h) + 28px)}.card,.panel,.question-card,.student-session-card,.summary-card,.student-dash-panel,.student-status-card,.student-rank-card,.setting-item,.setting-panel,.teacher-preview-panel{border:1px solid rgba(124,58,237,.11);border-radius:var(--radius-md);background:var(--card);box-shadow:0 8px 24px #7c3aed0f}.card,.panel,.question-card,.student-session-card{padding:16px}.placeholder-text,.empty-state{margin:0;color:var(--sub);font-size:13px;line-height:1.55}.btn{display:inline-flex;align-items:center;justify-content:center;width:100%;min-height:42px;padding:10px 14px;border:0;border-radius:var(--radius-sm);font-size:14px;font-weight:800;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.btn:active{transform:scale(.98)}.btn:disabled{cursor:not-allowed;opacity:.58}.btn-primary,.primary-action{border:1.5px solid var(--primary);background:linear-gradient(135deg,#111029,#1e1b4b);color:#e0e7ff;box-shadow:0 6px 16px #7c3aed2e}.btn-secondary,.secondary-action{border:1.5px solid var(--border);background:#fff;color:#4b5563}.btn-danger,.danger-action{border:1.5px solid #fecaca;background:#fee2e2;color:#991b1b}.back-btn,.icon-btn,.avatar-btn,.hamburger-btn,.brand-button,.logo-button{border:0;background:transparent;color:inherit}.back-btn{display:inline-flex;align-items:center;gap:6px;margin-bottom:20px;padding:8px 0;color:#555;font-size:15px}.icon-btn,.avatar-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:999px;background:#fff;color:var(--text);font-weight:900;box-shadow:0 2px 10px #0f172a14}.hamburger-btn{display:inline-grid;gap:4px;width:42px;height:42px;place-content:center}.hamburger-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text)}.form-group,label{display:grid;gap:7px;color:#374151;font-size:14px;font-weight:800}.form-label{color:#374151;font-size:13px;font-weight:800}.required-mark{color:var(--danger);font-size:12px}.form-input,input,select,textarea{width:100%;min-height:42px;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fff;color:var(--text)}input,select{padding:0 12px}textarea{min-height:116px;padding:10px 12px;resize:vertical}.field-grid,.action-grid,.summary-row,.student-status-grid,.student-rank-grid{display:grid;gap:10px}.field-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.action-grid,.summary-row,.student-status-grid,.student-rank-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.error-msg,.success-msg,.submit-message,.session-message,.photo-upload-status{min-height:18px;margin:0;font-size:13px;font-weight:800;overflow-wrap:anywhere}.error-msg,.submit-message.error,.session-message.error,.photo-upload-status.error{color:#b91c1c}.success-msg,.submit-message.saved,.submit-message.ready,.session-message.ready,.photo-upload-status.uploaded{color:var(--success)}.privacy-consent-box{height:96px;overflow-y:auto;padding:10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fafafa;color:#666;font-size:11px;line-height:1.5}.consent-check{display:flex;align-items:center;gap:8px;font-size:13.5px}.consent-check input{width:16px;min-height:16px;accent-color:var(--primary)}.sage-login-shell{min-height:100vh;padding:32px 20px;background:radial-gradient(circle at 18% 12%,rgba(124,58,237,.16),transparent 26%),linear-gradient(135deg,#f9f7ff,#eef7ff)}.sage-login-stage{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,420px);gap:24px;width:min(1120px,100%);min-height:calc(100vh - 64px);margin:0 auto;align-items:center}.sage-login-hero{position:relative;min-height:560px;padding:46px;border-radius:32px;overflow:hidden;background:linear-gradient(135deg,#7c3aed1f,#0891b21a)}.sage-login-copy{position:relative;z-index:2;display:grid;gap:22px}.sage-landing-brand{display:inline-flex;align-items:center;gap:12px;font-weight:900;color:var(--navy)}.sage-brand-mark{display:inline-grid;width:46px;height:46px;place-items:center;border-radius:16px;background:linear-gradient(135deg,#7c3aed,#45b7ee);color:#fff;font-size:24px}.sage-brand-name{font-size:22px}.sage-login-copy h1{display:grid;gap:4px;color:#111827;font-size:clamp(38px,6vw,74px);line-height:1.05}.sage-hero-word{color:var(--primary)}.sage-word-growth{color:#0f9f7a}.sage-login-copy p{color:#4b5563;font-size:20px;line-height:1.6}.sage-landing-ask{display:grid;grid-template-columns:minmax(0,1fr) 52px;gap:8px;width:min(520px,100%);padding:8px;border-radius:18px;background:#fff;box-shadow:0 14px 34px #7c3aed1f}.sage-landing-ask input{border:0;background:transparent;font-weight:800}.sage-landing-ask button{border:0;border-radius:14px;background:var(--primary);color:#fff;font-size:22px;font-weight:900}.sage-tutor-scene{position:absolute;right:44px;bottom:36px;width:260px;height:260px}.sage-tutor-bubble{position:absolute;display:grid;place-items:center;width:46px;height:46px;border-radius:999px;color:#fff;font-size:26px;font-weight:900}.sage-bubble-blue{right:18px;top:10px;background:#45b7ee}.sage-bubble-purple{left:16px;top:58px;background:#7c3aed}.sage-bubble-cyan{right:74px;top:86px;background:#06b6d4}.sage-tutor-bot{position:absolute;left:58px;bottom:18px;width:142px;height:154px}.sage-bot-head,.sage-bot-body,.sage-bot-book{position:absolute;border-radius:24px;background:linear-gradient(135deg,#7c3aed,#5630c8)}.sage-bot-head{left:22px;top:0;width:98px;height:82px}.sage-bot-head span{position:absolute;inset:22px 18px;border-radius:20px;background:#fff}.sage-bot-body{left:34px;top:82px;width:74px;height:58px}.sage-bot-book{right:4px;bottom:8px;width:64px;height:44px;background:#42ad83}.sage-login-panel{display:grid;gap:16px;padding:26px;border:1px solid rgba(124,58,237,.12);border-radius:24px;background:#fffffff0;box-shadow:0 18px 44px #0f172a1f}.sage-login-panel h2{font-size:24px}.sage-login-panel p,.sage-login-note{color:var(--sub);font-size:13px;line-height:1.55}.sage-login-tabs{display:grid;grid-template-columns:repeat(2,1fr);gap:6px;padding:5px;border-radius:12px;background:var(--primary-light)}.sage-login-tab{min-height:40px;border:0;border-radius:9px;background:transparent;color:var(--sub);font-weight:900}.sage-login-tab.active{background:#fff;color:var(--primary);box-shadow:0 4px 14px #7c3aed1f}.sage-login-form{display:grid;gap:14px}.sage-new-student-link{border:0;background:transparent;color:var(--primary);font-weight:900}.app-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;min-height:64px;padding:10px 16px;border-bottom:1px solid var(--border);background:#fffffff0;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.header-left,.header-right{display:flex;align-items:center;gap:10px}.student-brand-btn,.app-logo-text,.sidebar-brand{display:inline-flex;align-items:center;gap:10px;border:0;background:transparent;color:var(--text);font-size:18px;font-weight:900}.student-brand-logo,.text-logo{display:inline-grid;width:36px;height:36px;place-items:center;border-radius:12px;background:linear-gradient(135deg,#7c3aed,#45b7ee);color:#fff;font-weight:900}.student-role-badge{min-height:34px;padding:0 12px;border:0;border-radius:999px;background:var(--primary-light);color:var(--primary);font-weight:900}.content-area{padding:18px 16px calc(var(--nav-h) + 20px)}#section-student-dashboard .content-area,#section-student-mypage .container,#section-student-class .container,#section-video .container{width:min(720px,100%);margin:0 auto}.page-title-wrap{display:grid;gap:6px;margin-bottom:16px}.page-title,.home-section-title{color:var(--text);font-size:24px;font-weight:900}.page-sub{color:var(--sub);font-size:13px}.student-title-row{display:flex;align-items:center;gap:10px}.section-pad,.student-dashboard-stack,.student-routine-list,.question-list,.mypage-list,.revision-list{display:grid;gap:12px}.student-dash-panel,.student-status-card,.student-rank-card,.student-routine-item,.summary-card{padding:16px}.student-panel-title{color:var(--text);font-weight:900}.student-panel-sub,.student-status-label,.student-rank-kicker,.summary-label{color:var(--sub);font-size:13px;font-weight:800}.student-status-card strong,.student-rank-card strong,.summary-num{display:block;margin-top:6px;color:var(--primary);font-size:28px;font-weight:900}.student-routine-item{display:grid;grid-template-columns:42px minmax(0,1fr) auto;align-items:center;gap:10px;width:100%;border:1px solid rgba(124,58,237,.1);text-align:left}.routine-icon,.nav-icon,.setting-icon{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:14px;background:linear-gradient(135deg,#7c3aed,#45b7ee);color:#fff;font-weight:900}.routine-main{font-weight:900}.routine-state{color:var(--sub);font-size:12px;font-weight:900}.bottom-nav{position:fixed;right:0;bottom:0;left:0;z-index:30;display:grid;grid-template-columns:repeat(4,1fr);min-height:var(--nav-h);border-top:1px solid var(--border);background:#fffffff5;box-shadow:0 -8px 24px #0f172a14}.teacher-bottom-nav{grid-template-columns:repeat(5,1fr)}.nav-item{display:grid;place-items:center;gap:4px;border:0;background:transparent;color:var(--sub);font-size:12px;font-weight:900}.nav-item.active,.nav-item:hover{color:var(--primary)}.nav-label{white-space:nowrap}.tab-bar,.q-filter-row,.grade-filter-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}.tab-btn,.chip{min-height:36px;padding:0 12px;border:1px solid var(--border);border-radius:999px;background:#fff;color:var(--sub);font-weight:900}.tab-btn.active,.chip.active{border-color:var(--primary);background:var(--primary-light);color:var(--primary)}.class-date-nav{display:grid;grid-template-columns:42px minmax(0,1fr) 42px;gap:8px;align-items:center;margin:14px 0}.btn-arrow{min-height:42px;border:1px solid var(--border);border-radius:999px;background:#fff;color:var(--primary);font-size:24px;font-weight:900}.class-date-label{text-align:center;font-weight:900}.class-list-stack{display:grid;gap:10px;margin-top:14px}.class-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 14px;border:1px solid var(--border);border-radius:8px;background:#fff;box-shadow:0 8px 18px #0f172a0d}.class-item-info{min-width:0;flex:1}.class-item-dt{color:#111827;font-weight:900}.class-item-time{margin-top:3px;color:#4b5563;font-size:13px;font-weight:800}.class-booked-mark{margin-top:4px;color:#1e8e3e;font-size:12px;font-weight:900}.btn-class-book,.btn-class-cancel,.btn-icon-edit,.btn-icon-danger{min-height:34px;padding:0 12px;border:0;border-radius:8px;font-weight:900;cursor:pointer;white-space:nowrap}.btn-class-book,.btn-icon-edit{background:var(--primary);color:#fff}.btn-class-cancel,.btn-icon-danger{background:#fee2e2;color:#b91c1c}.class-full-badge,.class-view-badge{display:inline-flex;align-items:center;min-height:30px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:900;white-space:nowrap}.class-full-badge{background:#fee2e2;color:#b91c1c}.class-view-badge{background:#eef2ff;color:#3730a3}.book-reason-sheet,.class-edit-sheet{width:min(440px,calc(100vw - 32px))}.book-reason-sheet textarea{min-height:120px;resize:vertical}.photo-field{display:grid;gap:8px}.photo-options{display:grid;grid-template-columns:1fr 1fr 72px;gap:10px}.photo-option{position:relative;display:grid;min-height:54px;place-items:center;border:1px dashed var(--primary);border-radius:var(--radius-md);background:var(--primary-light);color:var(--primary);font-weight:900}.photo-option input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.photo-rotate{min-height:54px;border:1px solid #d1d5db;border-radius:var(--radius-md);background:#fff;color:#374151;font-size:13px;font-weight:900}.photo-rotate:disabled{opacity:.48}#section-student-question{min-height:100vh;background:var(--dashboard-bg)}.question-container{display:grid;gap:14px}.student-session-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(110px,.42fr);gap:12px;align-items:center}.student-session-card span{display:block;margin-bottom:3px;color:var(--sub);font-size:12px;font-weight:900}.student-session-card strong{display:block;overflow:hidden;color:var(--text);font-size:18px;font-weight:900;text-overflow:ellipsis;white-space:nowrap}.question-identity-card{display:grid;gap:12px}.question-cards,.question-card{display:grid;gap:14px}.question-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.question-card-actions{display:inline-flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.card-remove-btn{min-height:28px;padding:4px 9px;border:1px solid #fecaca;border-radius:var(--radius-sm);background:#fff1f2;color:#b91c1c;font-size:12px;font-weight:900}.question-card-kicker{display:block;margin-bottom:4px;color:var(--primary);font-size:12px;font-weight:900}.question-card h2{color:var(--text);font-size:20px;line-height:1.2}.q-progress{display:grid;gap:8px}.q-progress-label{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--sub);font-size:13px;font-weight:900}.q-progress-label strong{color:var(--primary)}.q-progress-track{height:8px;overflow:hidden;border-radius:999px;background:#e5e7eb}.q-progress-bar{height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),#22c55e);transition:width .2s ease}.overlay-shell,.modal-shell{display:none}.video-player-shell{min-height:240px;overflow:hidden;border:1px solid var(--border);border-radius:8px;background:#f8fafc}.video-player-shell iframe{display:block;width:100%;min-height:240px;border:0}.overlay-shell.active{position:fixed;inset:0;z-index:60;display:flex;align-items:center;justify-content:center;padding:16px;background:#0f172a6b}.source-sheet{display:grid;gap:12px;max-height:calc(100vh - 48px);overflow:auto;padding:18px;border-radius:8px;background:#fff;box-shadow:0 24px 70px #0f172a3d}.source-sheet h3{margin:0;color:#111827;font-size:18px}.modal-actions,.class-action-toolbar,.weekday-picker,.class-row-actions,.class-badge-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.class-action-toolbar{margin-bottom:12px}.class-editor-card{display:grid;gap:12px;margin-bottom:14px;padding:14px;border:1px solid var(--border);border-radius:8px;background:#fff}.class-bulk-form{display:grid;gap:12px}.weekday-picker label{display:inline-flex;align-items:center;gap:5px;min-height:32px;padding:0 9px;border:1px solid var(--border);border-radius:999px;background:#f9fafb;color:#374151;font-size:12px;font-weight:900}.class-item-selected{border-color:var(--primary);background:var(--primary-light)}.class-select-check{display:grid;width:28px;height:28px;place-items:center;border:2px solid var(--primary);border-radius:999px;background:#fff;color:var(--primary);font-weight:900}.summary-mini-list{margin-top:5px;color:#6b7280;font-size:12px;font-weight:800}.cal-schedule-cell{display:grid;gap:4px;min-height:84px;padding:10px;border:1px solid #e5e7eb;border-radius:8px;background:#fff}.cal-schedule-cell strong{color:var(--primary);font-size:13px}.cal-schedule-cell span,.cal-schedule-cell p{margin:0;color:#4b5563;font-size:12px;font-weight:800}.rank-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.rank-item{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:30px;padding:6px 0;color:#fff;font-size:13px;font-weight:900}.rank-count{flex:0 0 auto}.mini-list{display:grid;gap:8px;margin-top:12px}.mini-list-item{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;min-height:38px;padding:8px 10px;border:1px solid #edf0f5;border-radius:8px;background:#fafafa;color:#111827;font-weight:900;text-align:left}#section-submit-done{min-height:100vh;background:var(--dashboard-bg)}.done-hero{display:grid;gap:10px;padding:48px 0 28px;text-align:center}.done-icon{display:inline-grid;width:58px;height:58px;margin:0 auto 6px;place-items:center;border-radius:999px;background:#dcfce7;color:#15803d;font-size:34px;font-weight:900}.done-hero h2{font-size:22px;line-height:1.25}.done-hero p{color:#6b7280;font-size:14px;line-height:1.7}#done-info-card{display:grid;gap:0;margin-bottom:12px}.detail-row{display:grid;grid-template-columns:96px minmax(0,1fr);gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--border)}.detail-row:last-child{border-bottom:0}.detail-label{color:var(--sub);font-size:12px;font-weight:900}.detail-val{min-width:0;overflow-wrap:anywhere;color:var(--text);font-size:14px;font-weight:900}.workspace{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.8fr);gap:16px;width:min(1080px,calc(100vw - 32px));margin:0 auto;padding:18px 0 calc(var(--nav-h) + 24px)}.panel.wide{grid-column:1 / -1}#section-teacher-dashboard{min-height:100vh;background:var(--bg)}.header-notice-container{flex:1;min-width:0;max-width:460px;padding:8px 12px;border-radius:999px;background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:900;text-align:center}.header-notice-marquee{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.drawer-overlay,.drawer{display:none}.teacher-desktop-layout{display:grid;grid-template-columns:238px minmax(0,1fr) minmax(320px,420px);gap:16px;width:min(1440px,calc(100vw - 32px));margin:18px auto;align-items:start}.teacher-sidebar{position:sticky;top:82px;display:grid;min-height:calc(100vh - 104px);padding:16px;border-radius:var(--radius-lg);background:var(--navy);color:#fff}.sidebar-brand{color:#fff;margin-bottom:18px}.sidebar-menu,.sidebar-footer{display:grid;gap:8px}.sidebar-footer{align-self:end}.sidebar-item{display:flex;align-items:center;min-height:44px;padding:0 12px;border:0;border-radius:12px;background:transparent;color:#ffffffbd;font-weight:900;text-align:left}.sidebar-item.active,.sidebar-item:hover{background:#ffffff21;color:#fff}.teacher-main-panel,.teacher-preview-panel{min-height:calc(100vh - 104px);padding:18px;border-radius:var(--radius-lg);background:#fff}.teacher-main-panel{min-width:0}.teacher-preview-panel{position:sticky;top:82px;overflow:auto;max-height:calc(100vh - 104px)}.tab-page{display:grid;gap:16px}.cal-card{display:grid;gap:12px}.cal-header,.home-btn-row,.section-heading,.mypage-card-head,.question-row,.row-badges,.link-row{display:flex;align-items:center;gap:10px}.cal-header,.section-heading,.mypage-card-head,.question-row{justify-content:space-between}.cal-nav-btn{width:38px;height:38px;border:1px solid var(--border);border-radius:999px;background:#fff;color:var(--primary);font-size:24px;font-weight:900}.cal-title{font-weight:900}.cal-weekdays,.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}.cal-weekdays div{text-align:center;color:var(--sub);font-size:12px;font-weight:900}.cal-grid{min-height:160px;place-items:center}.home-stat-btn{flex:1;min-height:44px;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fff;color:var(--text);font-weight:900}.home-stat-btn span{color:var(--primary)}.question-list{display:grid;gap:10px}.question-row{width:100%;min-height:68px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-md);background:#fff;color:inherit;text-align:left}.question-button.active{border-color:var(--primary);background:var(--primary-light)}.question-button.archived{background:#f8fafc}.question-row div{display:grid;gap:4px}.question-row span{color:var(--sub);font-size:13px}.status,.archive-badge{display:inline-flex;align-items:center;justify-content:center;min-width:78px;min-height:28px;padding:4px 8px;border-radius:999px;font-size:12px;font-weight:900}.submitted{background:#e0f2fe;color:#0369a1}.reviewing{background:#fef3c7;color:#92400e}.answered{background:#dcfce7;color:#166534}.archive-badge{background:#e5e7eb;color:#374151}.detail-list,.compact-detail-list{display:grid;gap:8px;margin:0}.compact-detail-list{grid-template-columns:repeat(5,minmax(0,1fr))}.detail-list div,.compact-detail-list div{display:grid;gap:4px;min-width:0;padding-bottom:8px;border-bottom:1px solid #f1f5f9}.detail-list dt,.compact-detail-list dt{color:var(--sub);font-size:12px;font-weight:900}.detail-list dd,.compact-detail-list dd{margin:0;color:var(--text);font-size:13px;overflow-wrap:anywhere}.subsection{display:grid;gap:10px;margin-top:14px;padding-top:14px;border-top:1px solid var(--border)}.subsection h3{color:var(--text);font-size:15px}.revision-list{margin:0;padding:0;list-style:none}.revision-list li,.mypage-card{display:grid;gap:8px;padding:12px;border:1px solid var(--border);border-radius:var(--radius-md);background:#fff}.revision-list strong,.revision-list span,.answer-preview,.message-preview textarea,.kakao-message-preview{overflow-wrap:anywhere}.answer-preview{color:#374151;line-height:1.55}.message-preview{display:grid;gap:8px}.message-preview textarea,.kakao-message-preview{min-height:140px}.setting-item{margin-bottom:8px}.setting-item-btn{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;min-height:70px;padding:14px;border:0;border-radius:var(--radius-md);background:#fff;color:inherit;text-align:left}.setting-icon-label{display:flex;align-items:center;gap:12px;min-width:0}.setting-text{display:grid;gap:3px}.setting-label{color:var(--text);font-weight:900}.setting-desc{color:var(--sub);font-size:12px;line-height:1.4}.setting-arrow{color:var(--primary);font-size:22px;font-weight:900}.setting-panel{margin:-2px 0 10px;padding:14px}.switch{position:relative;display:inline-block;width:46px;height:26px}.switch input{opacity:0;width:0;min-height:0}.switch span{position:absolute;inset:0;border-radius:999px;background:#cbd5e1}.switch span:after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:999px;background:#fff;transition:transform .2s ease}.switch input:checked+span{background:var(--primary)}.switch input:checked+span:after{transform:translate(20px)}.student-admin-list{display:grid;gap:12px;margin-top:14px}.student-admin-card{display:grid;gap:12px;width:100%;text-align:left;padding:16px;border:1px solid var(--border);border-radius:8px;background:#fff;cursor:pointer}.student-admin-card.selected,.student-admin-card:hover{border-color:var(--primary);box-shadow:0 10px 24px #7c3aed1f}.student-admin-card strong{display:block;color:var(--ink);font-size:16px}.student-admin-card span{display:block;margin-top:4px;color:var(--muted);font-size:13px}.student-admin-card dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 14px;margin:0}.student-admin-card div{min-width:0}.student-admin-card dt{color:var(--muted);font-size:12px}.student-admin-card dd{margin:2px 0 0;color:var(--ink);font-size:13px;overflow-wrap:anywhere}.manual-register-panel,.student-detail-editor{display:grid;gap:12px}.manual-register-panel{margin-bottom:18px;padding:16px;border:1px solid var(--border);border-radius:8px;background:#fff}.manual-register-panel h3{margin:0}.student-detail-editor label{display:grid;gap:6px;color:var(--muted);font-size:13px}.student-detail-editor input,.student-detail-editor select,.student-detail-editor textarea{width:100%}.student-access-grid{display:grid;gap:8px;padding:10px;border:1px solid var(--border);border-radius:8px}@media(max-width:1200px){.teacher-desktop-layout{grid-template-columns:1fr;width:min(760px,calc(100vw - 24px));margin-bottom:calc(var(--nav-h) + 22px)}.teacher-sidebar{display:none}.teacher-preview-panel{position:static;max-height:none}}@media(min-width:1201px){#section-teacher-dashboard .bottom-nav{display:none}}@media(max-width:760px){.sage-login-shell{padding:16px}.sage-login-stage{grid-template-columns:1fr;min-height:auto}.sage-login-hero{min-height:420px;padding:28px}.sage-login-copy h1{font-size:40px}.sage-tutor-scene{right:20px;bottom:20px;transform:scale(.78);transform-origin:right bottom}.field-grid,.action-grid,.summary-row,.student-status-grid,.student-rank-grid,.rank-grid,.compact-detail-list,.workspace{grid-template-columns:1fr}.workspace{width:min(480px,calc(100vw - 24px))}.student-routine-item{grid-template-columns:38px minmax(0,1fr)}.routine-state{grid-column:2}.header-notice-container{display:none}.page-title{font-size:22px}}