:root{
  --brand-primary:#5B5EF7;--brand-accent:#14B8A6;
  --bg:#f4f6fb;--surface:#fff;--surface-2:#f8f9fd;--ink:#172033;--muted:#6b7486;
  --line:#e7eaf1;--nav:#11192d;--nav-2:#18223b;--good:#0d9d6e;--bad:#d9465f;--warning:#c88418;
  --shadow:0 10px 35px rgba(20,30,55,.08);--shadow-lg:0 24px 70px rgba(16,24,48,.15);
  --radius:20px;--radius-sm:13px;--sidebar:258px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.55}a{color:var(--brand-primary);text-decoration:none}a:hover{opacity:.92}button,input,select,textarea{font:inherit}button{cursor:pointer}svg{display:block}strong{font-weight:760}.muted{color:var(--muted)}.inline-form{display:inline}.eyebrow{color:var(--brand-primary);font-weight:800;font-size:11px;letter-spacing:.14em;text-transform:uppercase}.app-shell{min-height:100vh;display:grid;grid-template-columns:var(--sidebar) 1fr}.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar);z-index:40;background:linear-gradient(180deg,#121a2e 0%,#0d1425 100%);color:#fff;padding:24px 18px;display:flex;flex-direction:column;box-shadow:18px 0 50px rgba(15,24,45,.08)}.sidebar:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 4%,color-mix(in srgb,var(--brand-primary) 32%,transparent),transparent 28%),radial-gradient(circle at 90% 95%,color-mix(in srgb,var(--brand-accent) 15%,transparent),transparent 30%);pointer-events:none}.brand{display:flex;align-items:center;gap:12px;color:inherit;position:relative;z-index:1}.brand-sidebar{padding:0 8px 24px;border-bottom:1px solid rgba(255,255,255,.09);margin-bottom:22px}.brand-mark,.brand-logo-wrap{width:44px;height:44px;display:grid;place-items:center;flex:0 0 44px;border-radius:14px}.brand-mark{font-weight:900;letter-spacing:-.04em;color:#fff;background:linear-gradient(145deg,var(--brand-primary),color-mix(in srgb,var(--brand-primary) 55%,var(--brand-accent)));box-shadow:0 10px 24px color-mix(in srgb,var(--brand-primary) 28%,transparent)}.brand-logo-wrap{background:#fff;padding:5px;box-shadow:0 10px 24px rgba(0,0,0,.14)}.brand-logo{width:100%;height:100%;object-fit:contain;border-radius:9px}.brand-copy{min-width:0;display:grid}.brand-copy strong{font-size:17px;letter-spacing:-.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.brand-copy small{font-size:10px;line-height:1.3;color:#9ca8c2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:160px}.side-nav{display:grid;gap:7px;position:relative;z-index:1}.side-nav a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:12px;color:#aeb8ce;font-size:13px;font-weight:650;transition:.18s ease}.side-nav a:hover{color:#fff;background:rgba(255,255,255,.055);transform:translateX(2px)}.side-nav a.active{color:#fff;background:linear-gradient(90deg,color-mix(in srgb,var(--brand-primary) 28%,#15203a),rgba(255,255,255,.06));box-shadow:inset 3px 0 0 var(--brand-primary)}.nav-icon{width:19px;height:19px;display:grid;place-items:center}.nav-icon svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.side-nav a:first-child .nav-icon svg{fill:currentColor;stroke:none}.sidebar-foot{margin-top:auto;position:relative;z-index:1}.secure-note{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.07);padding:12px;border-radius:14px}.secure-note div{display:grid}.secure-note strong{font-size:11px}.secure-note small{font-size:10px;color:#8f9bb6}.secure-dot{width:9px;height:9px;border-radius:50%;background:var(--brand-accent);box-shadow:0 0 0 5px color-mix(in srgb,var(--brand-accent) 12%,transparent)}.main-panel{grid-column:2;min-width:0}.topbar{height:74px;position:sticky;top:0;z-index:30;background:rgba(255,255,255,.84);backdrop-filter:blur(16px);border-bottom:1px solid rgba(224,228,238,.78);display:flex;align-items:center;justify-content:space-between;padding:0 34px}.topbar-context{display:flex;align-items:center;gap:9px;color:#6e778a;font-size:12px;font-weight:650}.context-dot{width:8px;height:8px;border-radius:50%;background:var(--brand-accent);box-shadow:0 0 0 5px color-mix(in srgb,var(--brand-accent) 13%,transparent)}.topbar-user{display:flex;align-items:center;gap:10px}.user-avatar{width:37px;height:37px;border-radius:12px;display:grid;place-items:center;font-weight:850;color:#fff;background:linear-gradient(145deg,var(--brand-primary),color-mix(in srgb,var(--brand-primary) 55%,#9b62ff))}.user-copy{display:grid;line-height:1.2}.user-copy strong{font-size:12px}.user-copy small{font-size:10px;color:var(--muted);margin-top:3px}.icon-button{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:11px;color:#7a8395;display:grid;place-items:center;margin-left:4px}.icon-button:hover{color:var(--bad);border-color:#f0cbd1;background:#fff7f8}.icon-button svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.mobile-menu{display:none;width:38px;height:38px;border:0;background:#fff;border-radius:11px;box-shadow:var(--shadow);padding:10px}.mobile-menu span{display:block;height:2px;background:#2e384d;margin:4px 0;border-radius:2px}.container{width:min(1220px,calc(100% - 56px));margin:0 auto;padding:34px 0 58px}.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin:0 0 24px}.page-head h1{font-size:34px;line-height:1.08;letter-spacing:-.04em;margin:7px 0 8px}.page-head p{margin:0}.head-actions,.button-row,.form-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.card{background:rgba(255,255,255,.93);border:1px solid rgba(226,230,239,.95);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}.card h2{margin-top:0;letter-spacing:-.025em}.card-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:17px}.card-head h2{font-size:17px;margin:0}.card-head>a,.card-head>span{font-size:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid transparent;border-radius:12px;padding:10px 15px;font-weight:720;font-size:13px;line-height:1;min-height:39px;transition:.16s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--brand-primary),color-mix(in srgb,var(--brand-primary) 58%,#8a62ff));box-shadow:0 9px 22px color-mix(in srgb,var(--brand-primary) 22%,transparent)}.btn-ghost{background:#fff;color:#364057;border-color:#dfe3ec}.btn-ghost:hover{border-color:color-mix(in srgb,var(--brand-primary) 32%,#dfe3ec);color:var(--brand-primary)}.btn-warning{background:#fff5e6;border-color:#f2d19e;color:#a46106}.btn-danger-outline{background:#fff;border-color:#efcbd1;color:#bd334a}.btn-lg{padding:13px 18px;min-height:46px;font-size:14px}.messages{display:grid;gap:9px;margin-bottom:18px}.alert{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);padding:12px 14px;border-radius:12px;box-shadow:0 5px 20px rgba(20,30,55,.05);font-size:13px}.alert-dot{width:8px;height:8px;border-radius:50%;background:var(--brand-primary)}.alert-success .alert-dot{background:var(--good)}.alert-warning .alert-dot{background:var(--warning)}.alert-error .alert-dot{background:var(--bad)}.program-switcher{padding:14px 18px;margin-bottom:18px}.program-switcher label{display:flex;align-items:center;justify-content:space-between;gap:20px;font-weight:720;font-size:12px;color:#4b566b}.program-switcher select{min-width:330px}.metric-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;margin-bottom:20px}.metric-card{position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:18px;padding:19px;box-shadow:var(--shadow);min-height:132px}.metric-card:after{content:"";position:absolute;width:82px;height:82px;border-radius:50%;right:-27px;top:-31px;background:color-mix(in srgb,var(--brand-primary) 9%,transparent)}.metric-card.accent:after{background:color-mix(in srgb,var(--brand-accent) 13%,transparent)}.metric-card span{display:block;color:var(--muted);font-size:11px;font-weight:750;text-transform:uppercase;letter-spacing:.06em}.metric-card strong{display:block;font-size:30px;line-height:1.05;margin:13px 0 5px;letter-spacing:-.04em}.metric-card small{color:#8a93a4;font-size:10px}.metric-icon{width:31px;height:31px;border-radius:10px;display:grid;place-items:center;background:color-mix(in srgb,var(--brand-primary) 9%,#fff);color:var(--brand-primary);margin-bottom:12px;font-weight:850}.two-col{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(310px,.75fr);gap:18px;margin-bottom:18px}.hero-panel{position:relative;overflow:hidden;background:linear-gradient(135deg,#111a30 0%,#18254a 65%,color-mix(in srgb,var(--brand-primary) 35%,#18254a));color:#fff;border:0}.hero-panel:before{content:"";position:absolute;width:230px;height:230px;border-radius:50%;right:-80px;top:-90px;border:42px solid rgba(255,255,255,.055)}.hero-panel .muted,.hero-panel p{color:#b9c4df}.hero-panel .eyebrow{color:#8ee0d5}.live-summary{position:relative;z-index:1}.live-summary h3{font-size:21px;line-height:1.35;margin:11px 0 9px}.live-summary p{margin:0 0 17px}.live-progress{margin:16px 0}.live-progress-line{display:flex;justify-content:space-between;color:#b8c3dc;font-size:11px;margin-bottom:7px}.live-progress-track{height:7px;border-radius:99px;background:rgba(255,255,255,.12);overflow:hidden}.live-progress-track i{display:block;height:100%;background:linear-gradient(90deg,var(--brand-accent),#72e6d4);border-radius:inherit}.compact-list{display:grid}.compact-list>div{display:grid;grid-template-columns:10px 1fr auto;column-gap:10px;align-items:center;padding:11px 0;border-bottom:1px solid var(--line)}.compact-list>div:last-child{border:0}.compact-list small{grid-column:2;color:var(--muted);font-size:10px}.compact-list time{grid-column:3;grid-row:1 / span 2;color:#9aa2b1;font-size:10px}.presence-dot{width:8px;height:8px;border-radius:50%;background:#c5cad3}.presence-dot.online{background:var(--good);box-shadow:0 0 0 4px rgba(13,157,110,.1)}.table-card{padding:0;overflow:hidden;margin-bottom:18px}.table-card .card-head{padding:20px 22px;margin:0;border-bottom:1px solid var(--line)}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:middle}th{font-size:10px;color:#8992a4;text-transform:uppercase;letter-spacing:.07em;background:#fafbfe;white-space:nowrap}tbody tr:last-child td{border-bottom:0}tbody tr:hover td{background:#fbfcff}td small{color:var(--muted)}.badge,.status{display:inline-flex;align-items:center;border-radius:999px;font-size:10px;font-weight:820;padding:5px 9px;letter-spacing:.045em;text-transform:uppercase}.badge{background:#eef1f6;color:#566175}.badge.good,.status-revealed{background:#e6f8f1;color:#08704a}.badge.bad{background:#ffe9ed;color:#b63049}.badge.info{background:#eef0ff;color:#4853d7}.status-open{background:#e9ecff;color:#4e55d6;box-shadow:0 0 0 4px rgba(91,94,247,.06)}.status-closed{background:#fff3dd;color:#925d0c}.status-draft{background:#eef0f4;color:#5e6878}.empty-state{text-align:center;padding:30px 18px;color:var(--muted)}.empty-state.big{padding:74px 20px}.empty-state h2,.empty-state h3{color:var(--ink)}.detail-list{margin:0;display:grid;gap:12px}.detail-list div{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding-bottom:10px}.detail-list div:last-child{border:0}.detail-list dt{color:var(--muted);font-size:12px}.detail-list dd{font-weight:720;margin:0;text-align:right;font-size:13px}.stack-form{display:grid;gap:15px}.grid-form{display:grid;grid-template-columns:1fr 1fr;gap:16px}.span-2{grid-column:span 2}label{font-size:12px;font-weight:720;color:#4f596c}input,select,textarea{width:100%;margin-top:6px;border:1px solid #dce1ea;background:#fff;border-radius:12px;padding:11px 12px;color:var(--ink);outline:none;transition:.15s}input:focus,select:focus,textarea:focus{border-color:color-mix(in srgb,var(--brand-primary) 55%,#dce1ea);box-shadow:0 0 0 4px color-mix(in srgb,var(--brand-primary) 10%,transparent)}input[type=file]{padding:9px}.field-error{display:block;color:var(--bad);font-size:11px;margin-top:5px}.form-card{padding:24px}.chip-list{display:flex;flex-wrap:wrap;gap:7px;margin:12px 0 18px}.chip-list span{font-size:10px;background:#f4f5fa;border:1px solid #e3e6ee;border-radius:999px;padding:6px 9px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.result-counts{display:flex;gap:7px;flex-wrap:wrap}.success-panel{padding:18px;border-radius:13px;background:#eaf9f2;color:#0c6b49}.import-layout{grid-template-columns:1fr 1fr}.current-question{display:flex;align-items:center;justify-content:space-between;gap:22px;border:1px solid color-mix(in srgb,var(--brand-primary) 26%,#e2e6ef);margin-bottom:22px;background:linear-gradient(135deg,#fff,#f6f7ff);box-shadow:0 15px 44px color-mix(in srgb,var(--brand-primary) 8%,transparent)}.current-question h2{margin:9px 0;font-size:22px}.day-block{margin:25px 0}.day-title{display:flex;align-items:center;gap:10px;margin:0 0 10px;font-weight:850;font-size:18px}.day-title:before{content:"";width:8px;height:22px;border-radius:8px;background:linear-gradient(var(--brand-primary),var(--brand-accent))}.day-title small{color:var(--muted);font-weight:500;font-size:11px}.session-card{background:#fff;border:1px solid var(--line);border-radius:17px;box-shadow:var(--shadow);overflow:hidden;margin-bottom:12px}.session-card summary{cursor:pointer;list-style:none;padding:17px 20px;display:flex;align-items:center;justify-content:space-between}.session-card summary::-webkit-details-marker{display:none}.session-card summary div{display:grid}.session-card summary small{color:var(--muted);margin-top:3px;font-size:11px}.session-card summary>span{font-size:11px;color:var(--muted);background:#f4f5f8;padding:5px 9px;border-radius:999px}.question-list{border-top:1px solid var(--line)}.control-question{display:grid;grid-template-columns:1fr auto;gap:18px;padding:19px 20px;border-bottom:1px solid var(--line)}.control-question:last-child{border-bottom:0}.control-question.is-current{background:linear-gradient(90deg,color-mix(in srgb,var(--brand-primary) 6%,#fff),#fff);box-shadow:inset 3px 0 0 var(--brand-primary)}.control-question h3{margin:8px 0 13px;font-size:17px}.question-meta{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:10px}.mini-options{display:grid;grid-template-columns:1fr 1fr;gap:7px 14px;font-size:12px}.mini-options span{background:#f9fafc;padding:8px 10px;border-radius:9px;border:1px solid #edf0f5}.control-actions{display:flex;flex-direction:column;gap:7px;min-width:105px}.control-actions form,.control-actions .btn{width:100%}.live-participant-container{max-width:940px}.live-topline{display:flex;justify-content:space-between;align-items:center;gap:22px;margin-bottom:18px}.live-topline h1{margin:3px 0;font-size:29px;letter-spacing:-.03em}.timer-box{position:relative;overflow:hidden;background:linear-gradient(145deg,#121a30,#1e2c51);color:#fff;border-radius:18px;min-width:115px;padding:12px 18px;text-align:center;box-shadow:0 12px 28px rgba(17,26,48,.16)}.timer-box:before{content:"";position:absolute;inset:auto -12px -25px auto;width:60px;height:60px;border-radius:50%;background:color-mix(in srgb,var(--brand-primary) 35%,transparent)}.timer-box span{font-size:9px;letter-spacing:.13em;color:#adb9d9}.timer-box strong{position:relative;display:block;font-size:32px;line-height:1.05}.question-card{padding:29px;position:relative;overflow:hidden}.question-card:before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:linear-gradient(90deg,var(--brand-primary),var(--brand-accent))}.question-text{font-size:27px;line-height:1.32;margin:18px 0 23px;letter-spacing:-.025em}.answer-options{display:grid;gap:11px}.answer-option{display:grid;grid-template-columns:auto auto 1fr;align-items:center;gap:12px;border:1px solid #dfe3eb;border-radius:15px;padding:15px 16px;cursor:pointer;transition:.16s;background:#fff}.answer-option:hover{border-color:color-mix(in srgb,var(--brand-primary) 32%,#dfe3eb);transform:translateY(-1px);box-shadow:0 8px 22px rgba(25,35,60,.06)}.answer-option:has(input:checked),.answer-option.selected{border-color:var(--brand-primary);background:color-mix(in srgb,var(--brand-primary) 5%,#fff);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand-primary) 8%,transparent)}.answer-option input{width:18px;height:18px;margin:0;accent-color:var(--brand-primary)}.option-key{display:grid;place-items:center;width:31px;height:31px;border-radius:9px;background:#eef0f6;font-weight:850;color:#39445a}.answer-option:has(input:checked) .option-key,.answer-option.selected .option-key{background:var(--brand-primary);color:#fff}.answer-actions{display:flex;align-items:center;gap:14px;margin-top:19px}.solution-box{margin-top:22px;padding:20px;border-radius:15px;background:linear-gradient(135deg,#eaf8f2,#f4fffb);border:1px solid #bfe8d5}.solution-box h3{margin:5px 0}.solution-title{font-size:10px;font-weight:850;color:#08704a;letter-spacing:.12em}.pulse-ring{width:39px;height:39px;border-radius:50%;border:5px solid #e0e3fb;border-top-color:var(--brand-primary);margin:0 auto 17px;animation:spin 1s linear infinite}.pulse-ring.large{width:68px;height:68px;border-width:7px}@keyframes spin{to{transform:rotate(360deg)}}.bar{height:8px;border-radius:99px;background:#e9edf4;overflow:hidden;margin-top:8px}.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--brand-primary),var(--brand-accent));border-radius:inherit;transition:width .45s ease}.bar.small{width:140px;height:6px}.percent-cell{display:flex;align-items:center;gap:10px}.public-shell{min-height:100vh;background:radial-gradient(circle at 9% 11%,color-mix(in srgb,var(--brand-primary) 13%,transparent),transparent 24%),radial-gradient(circle at 89% 88%,color-mix(in srgb,var(--brand-accent) 12%,transparent),transparent 24%),#f5f7fb}.public-nav{height:82px;width:min(1180px,calc(100% - 44px));margin:auto;display:flex;align-items:center;justify-content:space-between}.public-nav .brand-copy small{color:#788296;max-width:220px}.public-badge{display:flex;align-items:center;gap:8px;font-size:11px;font-weight:720;color:#596277;background:#fff;border:1px solid var(--line);padding:8px 11px;border-radius:999px;box-shadow:var(--shadow)}.public-badge>span{width:7px;height:7px;border-radius:50%;background:var(--brand-accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--brand-accent) 12%,transparent)}.public-main{width:min(1180px,calc(100% - 44px));margin:0 auto;padding:22px 0 60px}.auth-shell{display:grid;grid-template-columns:minmax(420px,.9fr) minmax(520px,1.1fr);min-height:680px;background:#fff;border-radius:28px;overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--line)}.auth-card{padding:60px;align-self:center}.auth-card h1{font-size:40px;letter-spacing:-.045em;margin:6px 0 10px}.auth-card>p{margin-bottom:27px}.auth-foot{margin-top:21px}.auth-visual{position:relative;overflow:hidden;padding:60px;color:#fff;background:linear-gradient(145deg,#10182c 0%,#19284e 62%,color-mix(in srgb,var(--brand-primary) 45%,#19284e));display:flex;flex-direction:column;justify-content:center}.auth-visual:before,.auth-visual:after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.10)}.auth-visual:before{width:460px;height:460px;right:-180px;top:-170px;box-shadow:0 0 0 55px rgba(255,255,255,.025),0 0 0 110px rgba(255,255,255,.018)}.auth-visual:after{width:170px;height:170px;left:-60px;bottom:-70px;background:color-mix(in srgb,var(--brand-accent) 22%,transparent);filter:blur(1px)}.auth-visual>*{position:relative;z-index:2}.auth-visual h2{font-size:45px;line-height:1.06;max-width:500px;letter-spacing:-.05em;margin:18px 0}.auth-visual p{color:#c9d3ea;font-size:16px;max-width:520px}.live-pill{font-size:11px;font-weight:750;display:flex;align-items:center;gap:8px;color:#dbe4fa}.live-pill span{width:8px;height:8px;border-radius:50%;background:#50e0ae;box-shadow:0 0 0 6px rgba(80,224,174,.12)}.auth-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:38px}.auth-stat{background:rgba(255,255,255,.075);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:13px}.auth-stat strong{display:block;font-size:19px}.auth-stat small{font-size:9px;color:#aeb9d4;text-transform:uppercase;letter-spacing:.08em}.classroom-body{background:#090f1f;color:#fff;min-height:100vh;overflow-x:hidden}.classroom-body:before{content:"";position:fixed;inset:0;background:radial-gradient(circle at 8% 12%,color-mix(in srgb,var(--brand-primary) 20%,transparent),transparent 30%),radial-gradient(circle at 92% 88%,color-mix(in srgb,var(--brand-accent) 13%,transparent),transparent 26%);pointer-events:none}.classroom-shell{position:relative;width:min(1540px,calc(100% - 76px));margin:auto;padding:34px 0 54px}.classroom-header{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;border-bottom:1px solid #26314d;padding-bottom:22px}.classroom-brand{display:flex;align-items:center;gap:15px}.classroom-brand .brand-logo-wrap{width:54px;height:54px;flex-basis:54px}.classroom-brand .brand-mark{width:54px;height:54px;flex-basis:54px}.classroom-header h1{font-size:30px;margin:2px 0}.classroom-header p{color:#9eabc9;margin:0}.classroom-stats{display:flex;gap:12px}.classroom-stats>div{min-width:135px;background:rgba(20,30,56,.82);border:1px solid #293758;border-radius:18px;padding:12px 18px;text-align:center;backdrop-filter:blur(10px)}.classroom-stats span,.classroom-stats small{font-size:9px;color:#93a1c4;letter-spacing:.12em}.classroom-stats strong{display:inline-block;font-size:34px;margin-top:2px}.classroom-waiting{text-align:center;padding:12vh 20px}.classroom-waiting h2{font-size:46px;margin:20px 0 5px;letter-spacing:-.04em}.classroom-waiting p{color:#aab5d1;font-size:19px}.waiting-orbit{width:108px;height:108px;margin:auto;position:relative}.waiting-orbit:before,.waiting-orbit:after{content:"";position:absolute;border-radius:50%;inset:0;border:1px solid rgba(255,255,255,.12)}.waiting-orbit:after{inset:18px;border-color:color-mix(in srgb,var(--brand-primary) 60%,transparent);animation:pulse 1.7s ease-in-out infinite}.waiting-orbit .pulse-ring{position:absolute;inset:27px;margin:0;width:auto;height:auto}@keyframes pulse{50%{transform:scale(1.12);opacity:.5}}.classroom-question{padding-top:30px}.classroom-question h2{font-size:clamp(32px,3.2vw,54px);line-height:1.14;margin:20px 0 28px;max-width:1370px;letter-spacing:-.035em}.class-options{display:grid;grid-template-columns:1fr 1fr;gap:15px}.class-option{background:rgba(19,29,54,.9);border:1px solid #293758;border-radius:18px;padding:18px 20px;transition:.35s ease}.class-option.correct{border:2px solid #40d69a;background:linear-gradient(135deg,#12342d,#153d36);box-shadow:0 0 0 5px rgba(64,214,154,.06)}.class-option-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;font-size:20px}.class-option .option-key{background:#253351;color:#fff;width:38px;height:38px}.class-option.correct .option-key{background:#2dc68e}.class-option .bar{background:#26324e}.class-option .bar i{background:linear-gradient(90deg,var(--brand-primary),var(--brand-accent))}.class-solution{margin-top:23px;background:linear-gradient(135deg,#113328,#123a31);border:1px solid #276f58;border-radius:19px;padding:21px 24px}.class-solution .eyebrow{color:#54daa9}.class-solution h3{font-size:35px;margin:1px 0}.class-solution p{font-size:17px;color:#d5efe6;margin-bottom:0}.class-response-progress{height:5px;background:#1d2843;border-radius:99px;overflow:hidden;margin-top:9px}.class-response-progress i{display:block;height:100%;background:linear-gradient(90deg,var(--brand-primary),var(--brand-accent));transition:width .4s}.form-card 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@media(max-width:1120px){.metric-grid{grid-template-columns:repeat(3,1fr)}.auth-shell{grid-template-columns:1fr 1fr}.auth-card,.auth-visual{padding:44px}}
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@media(max-width:560px){.metric-grid{grid-template-columns:1fr}.topbar-user .user-copy{display:none}.page-head h1{font-size:29px}.question-card{padding:19px}.question-text{font-size:22px}.live-topline{align-items:flex-start}.timer-box{min-width:88px}.auth-card{padding:25px}.public-badge{display:none}.auth-shell{border-radius:20px}.classroom-stats{width:100%}.classroom-stats>div{flex:1;min-width:0;padding:10px}.classroom-header h1{font-size:24px}.brand-copy small{max-width:130px}.mini-options{grid-template-columns:1fr}.answer-actions{align-items:stretch;flex-direction:column}.answer-actions .btn{width:100%}}