:root{
  --maroon:#7e0048;--navy:#0b1f3a;--gold:#c7a55b;--cream:#fbf7f0;--paper:#ffffff;--ink:#1f2937;--muted:#667085;--soft:#f2e8ef;--line:rgba(11,31,58,.11);--green:#26865f;--red:#c44949;--blue:#2563eb;
  --shadow:0 22px 60px rgba(11,31,58,.16);--radius:26px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:linear-gradient(135deg,#fbf7f0 0%,#f5edf3 48%,#eef3f8 100%);min-height:100vh;overflow-x:hidden}button,input,textarea,select{font:inherit}button,a{touch-action:manipulation}button{border:0;cursor:pointer}a{text-decoration:none}.hidden{display:none!important}.orb{position:fixed;border-radius:50%;filter:blur(14px);opacity:.55;pointer-events:none;z-index:-1}.orb-a{width:360px;height:360px;left:-120px;top:-100px;background:rgba(126,0,72,.18)}.orb-b{width:480px;height:480px;right:-180px;bottom:-140px;background:rgba(199,165,91,.17)}
.login-screen,.tutor-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(96vw,520px);background:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.7);backdrop-filter:blur(18px);box-shadow:var(--shadow);border-radius:34px;padding:30px}.animate-in{animation:rise .55s cubic-bezier(.2,.8,.2,1) both}@keyframes rise{from{opacity:0;transform:translateY(18px) scale(.98)}to{opacity:1;transform:none}}.app-badge{display:inline-flex;align-items:center;gap:8px;padding:9px 13px;border-radius:999px;background:linear-gradient(135deg,rgba(126,0,72,.1),rgba(199,165,91,.16));color:var(--maroon);font-weight:900;font-size:12px;text-transform:uppercase;letter-spacing:.08em}.login-card h1,.tutor-head h1{font-size:clamp(30px,6vw,48px);line-height:1.02;margin:16px 0 12px;color:var(--navy);letter-spacing:-.04em}.lead{color:var(--muted);line-height:1.6;margin:0 0 20px}.join-form{display:grid;gap:14px}.join-form label{display:grid;gap:8px;font-weight:800;color:var(--navy);font-size:14px}.join-form label span{color:var(--muted);font-weight:600}input,textarea,select{width:100%;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:18px;padding:13px 14px;outline:none;transition:.2s ease}textarea{min-height:118px;line-height:1.55;resize:vertical}input:focus,textarea:focus,select:focus{border-color:rgba(126,0,72,.42);box-shadow:0 0 0 4px rgba(126,0,72,.09)}.primary,.ghost,.icon-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:900;transition:.2s ease}.primary{background:linear-gradient(135deg,var(--maroon),#a41463);color:white;padding:13px 18px;box-shadow:0 14px 28px rgba(126,0,72,.24)}.primary:hover{transform:translateY(-1px);box-shadow:0 18px 34px rgba(126,0,72,.3)}.ghost{background:rgba(255,255,255,.68);color:var(--navy);border:1px solid var(--line);padding:12px 16px}.ghost:hover{background:#fff}.wide{width:100%}.tutor-link{display:block;text-align:center;color:var(--maroon);font-weight:900;margin-top:16px}.student-body{height:100vh;overflow:hidden}.app-shell{height:100vh;display:grid;grid-template-columns:310px minmax(0,1fr);gap:18px;padding:18px}.mobile-top{display:none}.side-nav{background:rgba(255,255,255,.74);border:1px solid rgba(255,255,255,.8);backdrop-filter:blur(18px);border-radius:var(--radius);box-shadow:0 14px 40px rgba(11,31,58,.1);padding:16px;min-height:0;display:flex;flex-direction:column}.profile-card{display:flex;gap:12px;align-items:center;background:linear-gradient(135deg,var(--navy),#17385c);color:#fff;border-radius:22px;padding:14px}.avatar{width:48px;height:48px;border-radius:17px;display:grid;place-items:center;background:rgba(255,255,255,.13);font-weight:1000;color:var(--gold)}.profile-card span,.pin-card span{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.08em;opacity:.8}.profile-card strong{display:block;font-size:17px;line-height:1.1}.profile-card small{display:block;margin-top:3px;opacity:.78}.pin-card{margin:12px 0;padding:14px;border-radius:20px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.pin-card strong{font-size:24px;letter-spacing:.12em;color:var(--maroon)}.progress-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:14px;margin-bottom:12px}.progress-head{display:flex;justify-content:space-between;align-items:center;font-weight:900;color:var(--navy)}.progress{height:10px;background:#efe6e0;border-radius:999px;margin:11px 0;overflow:hidden}.progress i{display:block;height:100%;width:0%;background:linear-gradient(90deg,var(--maroon),var(--gold));border-radius:999px;transition:width .55s ease}.progress-card small{color:var(--muted);font-weight:700}.slide-nav{display:grid;gap:8px;overflow:auto;padding-right:4px;min-height:0;flex:1}.slide-item{width:100%;display:grid;grid-template-columns:38px 1fr auto;gap:10px;align-items:center;text-align:left;background:rgba(255,255,255,.7);border:1px solid var(--line);border-radius:18px;padding:10px;color:var(--ink);transition:.2s ease}.slide-item:hover,.slide-item.active{background:#fff;border-color:rgba(126,0,72,.32);transform:translateX(2px)}.slide-item.done .num{background:linear-gradient(135deg,var(--green),#54b283);color:#fff}.num{width:34px;height:34px;border-radius:13px;background:#f0e6ef;color:var(--maroon);display:grid;place-items:center;font-weight:1000;font-size:12px}.slide-info strong{display:block;font-size:12px;line-height:1.2;color:var(--navy)}.slide-info small{display:block;margin-top:3px;font-size:10px;color:var(--muted)}.pts{font-size:11px;color:var(--gold);font-weight:1000}.main-stage{min-height:0;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(380px,.62fr);gap:18px;grid-template-rows:auto 1fr}.stage-actions{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:12px}.slide-state{text-align:center}.slide-state strong{display:block;color:var(--navy)}.slide-state span{font-size:12px;color:var(--gold);text-transform:uppercase;letter-spacing:.1em;font-weight:900}.slide-view{align-self:start;background:rgba(255,255,255,.66);border:1px solid rgba(255,255,255,.78);border-radius:var(--radius);padding:12px;box-shadow:0 18px 46px rgba(11,31,58,.12)}.slide-view img{display:block;width:100%;aspect-ratio:16/9;object-fit:contain;border-radius:20px;background:var(--navy);box-shadow:0 12px 28px rgba(11,31,58,.16)}.question-panel{background:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.8);backdrop-filter:blur(18px);border-radius:var(--radius);box-shadow:0 18px 46px rgba(11,31,58,.12);padding:18px;overflow:auto;min-height:0}.eyebrow{display:block;color:var(--gold);font-weight:1000;text-transform:uppercase;letter-spacing:.11em;font-size:11px}.question-head h2{margin:6px 0 8px;color:var(--navy);font-size:clamp(22px,3vw,30px);line-height:1.08;letter-spacing:-.025em}.question-head p{color:var(--muted);line-height:1.55;margin:0 0 16px}.answer-form{display:grid;gap:12px}.q-card{border-radius:20px;background:#fff;border:1px solid var(--line);padding:14px}.q-card h3{font-size:15px;margin:0 0 10px;color:var(--maroon)}.option{display:flex;align-items:flex-start;gap:10px;padding:11px;border:1px solid var(--line);background:#fff;border-radius:16px;margin:8px 0;cursor:pointer;line-height:1.45}.option:has(input:checked){border-color:rgba(126,0,72,.42);background:rgba(126,0,72,.045);box-shadow:0 8px 20px rgba(126,0,72,.06)}.option input{width:auto;margin-top:3px;accent-color:var(--maroon)}.row{display:grid;grid-template-columns:1fr 150px;gap:10px;align-items:center;padding:10px 0;border-bottom:1px dashed var(--line)}.row:last-child{border-bottom:0}.scale-row{grid-template-columns:1fr 110px}.range-wrap{display:flex;align-items:center;gap:8px}.range-wrap input{padding:0;accent-color:var(--maroon)}.badge-val{font-weight:1000;color:var(--maroon);min-width:22px;text-align:center}.answer-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.feedback{margin-top:14px;border-radius:20px;padding:15px;background:#fff;border:1px solid var(--line);border-left:6px solid var(--gold);box-shadow:0 12px 26px rgba(11,31,58,.08)}.feedback.good{border-left-color:var(--green)}.feedback.warn{border-left-color:var(--gold)}.feedback.bad{border-left-color:var(--red)}.feedback h3{margin:0 0 8px;color:var(--navy)}.feedback p,.feedback li{font-size:14px;line-height:1.55}.feedback ul{margin:8px 0 0;padding-left:20px}.source-list{display:grid;gap:8px;margin-top:10px}.source-list div{padding:10px;border-radius:14px;background:rgba(199,165,91,.09);border:1px solid rgba(199,165,91,.18)}.dialog{border:0;border-radius:28px;background:linear-gradient(180deg,#fff,var(--cream));box-shadow:0 38px 92px rgba(11,31,58,.26);padding:22px;color:var(--ink)}.dialog::backdrop{background:rgba(11,31,58,.56);backdrop-filter:blur(7px)}.wide-dialog{width:min(94vw,860px)}.dialog-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:14px}.dialog-head h2{margin:4px 0 0;color:var(--navy);font-size:28px}.icon-btn{width:42px;height:42px;background:#fff;color:var(--navy);border:1px solid var(--line);font-size:20px}.leaderboard{display:grid;gap:10px;max-height:62vh;overflow:auto}.leader-row{position:relative;display:grid;grid-template-columns:46px 1fr 90px;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;overflow:hidden}.leader-row::before{content:"";position:absolute;inset:0 auto 0 0;width:var(--bar,0%);background:linear-gradient(90deg,rgba(126,0,72,.1),rgba(199,165,91,.18));transition:.8s ease}.leader-row>*{position:relative;z-index:1}.rank{width:38px;height:38px;border-radius:14px;display:grid;place-items:center;background:#f2e8ef;color:var(--maroon);font-weight:1000}.leader-row:nth-child(1) .rank{background:linear-gradient(135deg,#ffe08a,#f59e0b);color:#5b2a00;animation:pulse 1.8s ease-in-out infinite}@keyframes pulse{50%{transform:scale(1.06)}}.leader-name strong{display:block;color:var(--navy)}.leader-name small{display:block;color:var(--muted);font-size:12px}.leader-score{text-align:right;color:var(--maroon);font-weight:1000}.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(20px);opacity:0;background:var(--navy);color:#fff;font-weight:900;border-radius:999px;padding:12px 18px;box-shadow:0 16px 38px rgba(11,31,58,.28);transition:.3s ease;z-index:80}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}.tutor-body{min-height:100vh;overflow:auto}.tutor-panel{width:min(1180px,96vw);margin:auto}.tutor-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;background:rgba(255,255,255,.76);border:1px solid rgba(255,255,255,.8);border-radius:30px;box-shadow:var(--shadow);padding:24px;margin-bottom:18px}.tutor-head p{margin:0;color:var(--muted);font-weight:800}.head-actions{display:flex;gap:10px;flex-wrap:wrap}.tutor-grid{display:grid;grid-template-columns:380px 1fr;gap:18px}.panel-card{background:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.8);border-radius:26px;box-shadow:0 14px 40px rgba(11,31,58,.1);padding:18px}.panel-card h2{margin:0 0 12px;color:var(--navy)}.compact{gap:10px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}.small-btn{padding:8px 12px;font-size:13px}.new-pin{margin-top:14px;padding:18px;border-radius:22px;background:linear-gradient(135deg,var(--navy),var(--maroon));color:#fff;text-align:center}.new-pin strong{display:block;font-size:42px;letter-spacing:.16em;color:var(--gold);margin:8px 0}.session-list{display:grid;gap:10px;max-height:460px;overflow:auto}.session-card{display:grid;grid-template-columns:1fr auto;gap:10px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:13px}.session-card strong{display:block;color:var(--navy)}.session-card small{display:block;color:var(--muted);margin-top:4px}.session-pin{font-size:20px;font-weight:1000;color:var(--maroon);letter-spacing:.1em;text-align:right}.session-actions{grid-column:1/-1;display:flex;gap:8px;flex-wrap:wrap}.detail-card{margin-top:18px}.answer-table{overflow:auto;margin-top:16px}.answer-table table{border-collapse:collapse;width:100%;min-width:820px;background:#fff;border-radius:18px;overflow:hidden}.answer-table th,.answer-table td{border-bottom:1px solid var(--line);padding:10px;text-align:left;font-size:13px;vertical-align:top}.answer-table th{background:#f7f2ea;color:var(--navy)}.answer-json{max-width:360px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.status-pill{display:inline-flex;border-radius:999px;padding:4px 9px;font-weight:900;font-size:11px;background:#e6f4ee;color:var(--green)}.status-pill.off{background:#f8e7e7;color:var(--red)}
@media(max-width:1100px){.app-shell{grid-template-columns:280px 1fr}.main-stage{grid-template-columns:1fr}.question-panel{overflow:visible}.student-body{height:auto;overflow:auto}.app-shell{height:auto;min-height:100vh}.side-nav{max-height:calc(100vh - 36px);position:sticky;top:18px}.tutor-grid{grid-template-columns:1fr}}
@media(max-width:760px){body{background:linear-gradient(180deg,#fbf7f0,#f2edf4)}.student-body{height:auto;overflow:auto}.mobile-top{display:flex;position:sticky;top:0;z-index:30;background:rgba(255,255,255,.82);backdrop-filter:blur(16px);border-bottom:1px solid rgba(11,31,58,.08);align-items:center;justify-content:space-between;padding:10px 12px}.mobile-title{display:grid;line-height:1.15;text-align:center}.mobile-title strong{color:var(--navy)}.mobile-title span{font-size:11px;color:var(--muted);font-weight:800}.app-shell{display:block;padding:0}.side-nav{position:fixed;z-index:40;left:12px;right:12px;top:64px;bottom:12px;transform:translateX(-110%);transition:.28s ease;max-height:none}.side-nav.open{transform:translateX(0)}.main-stage{display:block;padding:12px}.stage-actions{position:sticky;top:64px;z-index:20;background:rgba(251,247,240,.86);backdrop-filter:blur(12px);border-radius:18px;padding:8px;margin-bottom:10px}.stage-actions .ghost,.stage-actions .primary{padding:10px 12px;font-size:13px}.slide-state span{display:none}.slide-view{border-radius:20px;padding:7px}.slide-view img{border-radius:15px}.question-panel{border-radius:22px;padding:15px;margin-top:12px}.answer-actions{display:grid;grid-template-columns:1fr}.row,.scale-row{grid-template-columns:1fr}.leader-row{grid-template-columns:38px 1fr 70px}.login-screen,.tutor-wrap{padding:14px;place-items:start center}.login-card{padding:22px;border-radius:26px;margin-top:20px}.login-card h1,.tutor-head h1{font-size:32px}.tutor-head{display:block;padding:18px;border-radius:24px}.head-actions{margin-top:14px}.tutor-panel{width:100%}.panel-card{border-radius:22px}.dialog{padding:16px}.wide-dialog{width:96vw}.question-head h2{font-size:24px}}
@media(max-width:430px){.stage-actions{gap:6px}.stage-actions .ghost,.stage-actions .primary{padding:9px 10px}.slide-state strong{font-size:13px}.login-card{width:100%}.app-badge{font-size:10px}.question-head p{font-size:14px}.option{font-size:14px}.session-card{grid-template-columns:1fr}.session-pin{text-align:left}}