:root{--bg: #0b1020;--bg-2: #0f1629;--panel: #151d33;--panel-2: #1c2740;--border: #29344f;--border-soft: #202a44;--text: #eef2ff;--muted: #93a0bd;--primary: #7c83ff;--primary-2: #a855f7;--primary-hover: #6b73ff;--green: #34d399;--red: #fb7185;--amber: #fbbf24;--radius: 16px;--radius-sm: 10px;--shadow: 0 10px 30px -12px rgba(0, 0, 0, .6);--grad: linear-gradient(135deg, #7c83ff 0%, #a855f7 100%);--safe-b: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text);background:radial-gradient(1200px 600px at 80% -10%,rgba(168,85,247,.14),transparent 60%),radial-gradient(1000px 500px at -10% 10%,rgba(124,131,255,.12),transparent 55%),var(--bg);min-height:100vh;line-height:1.5}h1{font-size:clamp(22px,5vw,30px);margin:0 0 4px;letter-spacing:-.02em}h2{font-size:clamp(19px,4vw,22px);letter-spacing:-.01em}h3{font-size:17px;letter-spacing:-.01em}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:860px;margin:0 auto;padding:20px 16px calc(28px + var(--safe-b))}.app-layout{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.app-layout.fullscreen{grid-template-columns:1fr}.mobile-header{display:none}.sidebar{position:fixed;top:0;left:0;width:260px;height:100vh;display:flex;flex-direction:column;background:#0f1629f2;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-right:1px solid var(--border-soft);z-index:100;padding:0;overflow-y:auto}.sidebar-overlay{display:none}.sidebar-top{padding:24px 20px 20px;border-bottom:1px solid var(--border-soft)}.sidebar-brand{font-weight:800;font-size:22px;letter-spacing:-.03em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}.sidebar-nav{flex:1;padding:16px 12px;display:flex;flex-direction:column;gap:4px}.nav-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:var(--radius-sm);color:var(--muted);font-size:14px;font-weight:600;text-decoration:none;transition:background .15s,color .15s;cursor:pointer;border:none;background:none;width:100%;text-align:left}.nav-item:hover{background:var(--panel-2);color:var(--text);text-decoration:none}.nav-item.active{background:#7c83ff1f;color:var(--primary)}.nav-item.active svg{stroke:var(--primary)}.logout-btn{color:var(--red);margin-top:4px}.logout-btn:hover{background:#fb71851a;color:var(--red)}.sidebar-bottom{padding:12px;border-top:1px solid var(--border-soft)}.sidebar-user{display:flex;align-items:center;gap:10px;padding:10px 14px;margin-bottom:4px}.sidebar-avatar{width:36px;height:36px;border-radius:10px;background:var(--grad);display:grid;place-items:center;font-weight:800;font-size:14px;color:#fff;flex-shrink:0}.sidebar-user-info{display:flex;flex-direction:column;min-width:0}.sidebar-user-name{font-size:14px;font-weight:650;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-user-role{font-size:12px;color:var(--muted);text-transform:capitalize}.main-content{grid-column:2;min-height:100vh;padding:28px 32px calc(28px + var(--safe-b));max-width:960px;width:100%}.app-layout.fullscreen .main-content{grid-column:1;max-width:860px;margin:0 auto}.back-from-fullscreen{margin-bottom:16px}.page-loading{display:grid;place-items:center;min-height:60vh;color:var(--muted);font-size:15px}@media(max-width:768px){.app-layout{grid-template-columns:1fr}.main-content{grid-column:1;padding:16px 16px calc(28px + var(--safe-b));padding-top:calc(68px + env(safe-area-inset-top,0px))}.mobile-header{display:flex;align-items:center;justify-content:space-between;position:fixed;top:0;left:0;right:0;z-index:90;padding:12px 16px;padding-top:calc(12px + env(safe-area-inset-top,0px));background:#0b1020eb;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-soft)}.mobile-brand{font-weight:800;font-size:20px;letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}.menu-toggle{background:none;border:none;color:var(--text);padding:8px;cursor:pointer;border-radius:8px}.menu-toggle:hover{background:var(--panel-2)}.sidebar{transform:translate(-100%);transition:transform .25s cubic-bezier(.4,0,.2,1);width:min(280px,85vw)}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#04081499;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:99}}.navbar{display:none}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--grad);color:#fff;border:none;padding:12px 18px;border-radius:var(--radius-sm);cursor:pointer;font-size:15px;font-weight:650;min-height:44px;transition:transform .08s ease,box-shadow .15s ease,opacity .15s;box-shadow:0 6px 18px -8px #7c83ffb3}.btn:hover{box-shadow:0 10px 24px -8px #7c83ffd9}.btn:active{transform:translateY(1px) scale(.99)}.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}.btn.secondary{background:var(--panel-2);color:var(--text);border:1px solid var(--border);box-shadow:none}.btn.secondary:hover{background:var(--border)}.btn.danger{background:transparent;color:var(--red);border:1px solid rgba(251,113,133,.5);box-shadow:none}.btn.danger:hover{background:#fb71851f}.btn.ghost{background:transparent;color:var(--muted);border:1px solid var(--border);box-shadow:none}.btn.ghost:hover{color:var(--text);background:var(--panel-2)}.btn.small{padding:8px 12px;font-size:13px;min-height:38px}.btn.block{width:100%}.input,.textarea,select{width:100%;padding:12px 14px;background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:16px;font-family:inherit;transition:border-color .15s,box-shadow .15s}.input:focus,.textarea:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #7c83ff33}.textarea{resize:vertical;min-height:76px}label.field-label{color:var(--muted);font-size:13px;font-weight:600}input[type=file]{width:100%;color:var(--muted);font-size:14px}input[type=file]::file-selector-button{margin-right:12px;border:1px solid var(--border);background:var(--panel-2);color:var(--text);padding:10px 14px;border-radius:var(--radius-sm);font-weight:600;cursor:pointer}input[type=checkbox],input[type=radio]{width:20px;height:20px;accent-color:var(--primary);flex:none}.card{background:linear-gradient(180deg,var(--panel) 0%,var(--bg-2) 140%);border:1px solid var(--border-soft);border-radius:var(--radius);padding:18px;margin-bottom:14px;box-shadow:var(--shadow)}.card.flat{box-shadow:none}.row{display:flex;gap:10px;align-items:center}.between{justify-content:space-between}.wrap{flex-wrap:wrap}.col{display:flex;flex-direction:column;gap:10px}.grow{flex:1;min-width:0}.muted{color:var(--muted);font-size:13px}.error{color:var(--red);font-size:14px;margin:6px 0}.success{color:var(--green);font-size:14px}.center{text-align:center}.badge{display:inline-block;padding:3px 11px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.02em}.badge.admis{background:#34d39929;color:var(--green)}.badge.respins{background:#fb718529;color:var(--red)}.badge.grey{background:var(--panel-2);color:var(--muted)}.badge.info{background:#7c83ff29;color:var(--primary)}.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:var(--panel-2);border:1px solid var(--border-soft);font-size:13px;font-weight:600;color:var(--muted)}.tabs{display:flex;gap:4px;margin-bottom:18px;background:var(--panel-2);padding:5px;border-radius:var(--radius-sm);border:1px solid var(--border-soft);overflow-x:auto;scrollbar-width:none}.tabs::-webkit-scrollbar{display:none}.tab{flex:1;text-align:center;white-space:nowrap;padding:10px 14px;cursor:pointer;color:var(--muted);border-radius:8px;font-weight:650;font-size:14px;transition:background .15s,color .15s}.tab.active{color:var(--text);background:var(--grad);box-shadow:0 6px 16px -10px #7c83ffe6}.auth-wrap{max-width:400px;margin:8vh auto 0;padding:0 16px}.auth-hero{text-align:center;margin-bottom:22px}.auth-hero .logo{font-size:34px;font-weight:800;letter-spacing:-.03em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}.option-row{display:flex;align-items:center;gap:12px;padding:14px 15px;border:2px solid var(--border);border-radius:var(--radius-sm);margin-bottom:10px;cursor:pointer;background:var(--bg-2);transition:border-color .15s,background .15s,transform .08s;font-size:15px;-webkit-user-select:none;user-select:none}.option-row:active{transform:scale(.995)}.option-row.selected{border-color:var(--primary);background:#7c83ff1f}.option-row.correct{border-color:var(--green);background:#34d39924}.option-row.wrong{border-color:var(--red);background:#fb718524}.option-row.readonly{cursor:default}.progress-bar{height:10px;background:var(--panel-2);border-radius:999px;overflow:hidden;margin:10px 0;border:1px solid var(--border-soft)}.progress-bar>div{height:100%;background:var(--grad);transition:width .35s ease;border-radius:999px}.stat-pill{padding:8px 14px;border-radius:var(--radius-sm);background:var(--panel-2);border:1px solid var(--border-soft);font-weight:750;font-size:15px;display:inline-flex;align-items:center;gap:6px}.stat-pill.green{color:var(--green)}.stat-pill.red{color:var(--red)}.result-big{font-size:clamp(40px,12vw,60px);font-weight:850;text-align:center;margin:8px 0;letter-spacing:-.02em}.result-big.admis{color:var(--green)}.result-big.respins{color:var(--red)}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--border-soft);font-size:14px}th{color:var(--muted);font-weight:600}.list-item{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px;border:1px solid var(--border-soft);border-radius:var(--radius-sm);background:var(--bg-2);margin-bottom:10px}.quiz-actionbar{position:sticky;bottom:0;margin:16px -16px calc(-1 * (28px + var(--safe-b)));padding:14px 16px calc(14px + var(--safe-b));background:linear-gradient(180deg,transparent,var(--bg) 45%)}.quiz-actionbar .row{gap:10px}.hud{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.empty{text-align:center;padding:32px 16px;color:var(--muted)}.empty .big-emoji{font-size:40px;display:block;margin-bottom:8px}.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}.divider{height:1px;background:var(--border-soft);margin:14px 0}@media(min-width:640px){.card{padding:22px}.tab{flex:initial}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:18px}.badge.role-admin{background:var(--grad);color:#fff}.nav-role{margin-left:6px;padding:2px 8px;font-size:10px;vertical-align:middle}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;margin-bottom:20px}.stat-card{background:linear-gradient(180deg,var(--panel) 0%,var(--bg-2) 140%);border:1px solid var(--border-soft);border-radius:var(--radius-sm);padding:16px}.stat-card.accent{border-color:transparent;background:var(--grad)}.stat-card.accent .stat-label,.stat-card.accent .stat-sub{color:#ffffffd9}.stat-value{font-size:28px;font-weight:800;letter-spacing:-.02em;line-height:1}.stat-label{font-size:13px;color:var(--muted);margin-top:6px;font-weight:600}.stat-sub{font-size:12px;color:var(--muted);margin-top:2px}.table-scroll{overflow-x:auto}.admin-table{width:100%;border-collapse:collapse;font-size:14px}.admin-table th{text-align:left;padding:12px 14px;color:var(--muted);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;border-bottom:1px solid var(--border);white-space:nowrap}.admin-table td{padding:12px 14px;border-bottom:1px solid var(--border-soft)}.admin-table tr:last-child td{border-bottom:none}.admin-table .num{text-align:right}.admin-table .strong,.strong{font-weight:650}.feed{display:flex;flex-direction:column;gap:2px}.feed.compact .feed-item{padding:8px 0}.feed-item{display:flex;gap:12px;padding:12px 4px;border-bottom:1px solid var(--border-soft)}.feed-item:last-child{border-bottom:none}.feed-top{display:flex;justify-content:space-between;gap:10px}.feed-detail{word-break:break-word}.dot{width:9px;height:9px;border-radius:50%;margin-top:6px;flex-shrink:0;background:var(--muted)}.dot-green{background:var(--green)}.dot-red{background:var(--red)}.dot-amber{background:var(--amber)}.dot-primary{background:var(--primary)}.dot-grey{background:var(--border)}.section-title{margin:20px 0 10px;font-size:14px;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}.mini-row{display:flex;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px solid var(--border-soft)}.mini-row:last-child{border-bottom:none}.drawer-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#04081499;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:50;display:flex;justify-content:flex-end}.drawer{width:min(480px,100%);height:100%;overflow-y:auto;background:var(--bg-2);border-left:1px solid var(--border);padding:20px 18px calc(24px + var(--safe-b));animation:slideIn .2s ease}@keyframes slideIn{0%{transform:translate(20px);opacity:.6}to{transform:translate(0);opacity:1}}.chip.small{padding:4px 10px;font-size:12px}@media(max-width:620px){.admin-table thead{display:none}.admin-table,.admin-table tbody,.admin-table tr,.admin-table td{display:block;width:100%}.admin-table tr{border:1px solid var(--border-soft);border-radius:var(--radius-sm);margin-bottom:10px;padding:6px 4px}.admin-table td{border:none;padding:7px 12px;display:flex;justify-content:space-between;align-items:center}.admin-table td.num{text-align:right}.admin-table td:before{content:attr(data-label);color:var(--muted);font-size:12px;font-weight:600;margin-right:12px}.admin-table td:empty{display:none}}.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}.topic-card{margin-bottom:0;display:flex;flex-direction:column}.topic-link{display:flex;gap:12px;align-items:flex-start;color:inherit}.topic-link:hover{text-decoration:none}.topic-avatar{width:42px;height:42px;flex-shrink:0;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:18px;color:#fff;background:var(--grad)}.topic-meta{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.profile-page{max-width:680px}.profile-header{display:flex;align-items:center;gap:18px;margin-bottom:24px}.profile-header h1{margin:0;font-size:24px}.profile-avatar-lg{width:64px;height:64px;border-radius:16px;display:grid;place-items:center;font-weight:800;font-size:24px;color:#fff;flex-shrink:0}.stat-grid.four-col{grid-template-columns:repeat(4,1fr)}@media(max-width:600px){.stat-grid.four-col{grid-template-columns:repeat(2,1fr)}}.color-picker{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}.color-swatch{width:32px;height:32px;border-radius:8px;border:2px solid transparent;cursor:pointer;transition:transform .1s,border-color .15s}.color-swatch:hover{transform:scale(1.1)}.color-swatch.active{border-color:#fff;box-shadow:0 0 0 2px var(--primary)}.info-grid{display:flex;flex-direction:column;gap:0}.info-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--border-soft);font-size:14px}.info-row:last-child{border-bottom:none}.card{transition:border-color .2s,box-shadow .2s}.card:hover{border-color:var(--border)}.topic-card:hover{border-color:#7c83ff4d;box-shadow:0 8px 32px -12px #7c83ff33}.stat-card{transition:transform .15s,box-shadow .15s}.stat-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px -8px #0006}.row-banned td{opacity:.6}.row-banned .strong{text-decoration:line-through;text-decoration-color:var(--red)}.mini-row-btn{width:100%;background:none;border:none;border-bottom:1px solid var(--border-soft);color:inherit;font:inherit;cursor:pointer;text-align:left}.mini-row-btn:hover{background:var(--panel-2)}.link-btn{background:none;border:none;color:var(--primary);cursor:pointer;font:inherit;padding:0;min-width:0;overflow:hidden;text-overflow:ellipsis}.link-btn:hover{text-decoration:underline}.drawer-overlay-2{z-index:60;background:#04081473}.drawer-overlay-3{z-index:70;background:#0408148c}.doc-modal{position:relative;margin:auto;width:min(760px,100%);max-height:86vh;overflow-y:auto;background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius);padding:20px 18px calc(20px + var(--safe-b));box-shadow:var(--shadow)}.drawer-overlay-3{display:flex;padding:16px}.doc-content{white-space:pre-wrap;word-break:break-word;font-family:SFMono-Regular,ui-monospace,Cascadia Code,Menlo,Consolas,monospace;font-size:13px;line-height:1.6;color:#d7ddf5;background:var(--bg);border:1px solid var(--border-soft);border-radius:var(--radius-sm);padding:14px;margin:0;max-height:60vh;overflow-y:auto}