:root{--ink:#102a43;--muted:#627d98;--blue:#1769e0;--cyan:#14b8a6;--light:#f3f7fb;--white:#fff;--danger:#c2413b;--shadow:0 18px 50px rgba(16,42,67,.12)}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,Manrope,system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink);background:radial-gradient(circle at 85% 10%,#dcecff 0,transparent 32%),var(--light)}body{min-height:100vh}.app-shell,.landing{width:min(1180px,calc(100% - 32px));margin:auto;padding:28px 0 60px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}.brand{font-weight:900;letter-spacing:.16em;color:var(--blue)}.session-code{margin-left:16px;color:var(--muted);font-weight:700}.status{padding:9px 14px;border-radius:99px;background:#d9f8f1;color:#08776c;font-weight:800}.status.offline{background:#fff1d6;color:#9a5d00}.card{background:rgba(255,255,255,.94);border:1px solid #dce6f0;border-radius:26px;padding:clamp(24px,4vw,54px);box-shadow:var(--shadow)}.registration{max-width:720px;margin:auto}.center{text-align:center;max-width:850px;margin:8vh auto}.eyebrow{text-transform:uppercase;letter-spacing:.15em;font-weight:900;color:var(--blue);font-size:.78rem}h1{font-size:clamp(2rem,4vw,4rem);line-height:1.06;margin:12px 0 20px}h2{font-size:1.35rem;margin-top:28px}p{color:var(--muted);font-size:1.05rem;line-height:1.6}.grid.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}label{display:block;font-weight:750;margin:16px 0 6px}input,textarea{width:100%;border:1px solid #bcccdc;border-radius:13px;padding:14px 16px;font:inherit;background:white}input:focus,textarea:focus{outline:3px solid #cbe1ff;border-color:var(--blue)}.check{display:flex;gap:12px;align-items:flex-start;font-weight:500}.check input{width:22px;height:22px;margin-top:2px}.check span{flex:1}.primary,button{border:0;border-radius:13px;padding:14px 20px;background:var(--blue);color:white;font:inherit;font-weight:850;cursor:pointer}.primary{width:100%;margin-top:12px}.secondary,.controls button{background:#e7f0fd;color:var(--ink)}button:hover{filter:brightness(.96)}.error{color:var(--danger);font-weight:750}.question-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}.timer{width:112px;height:112px;flex:none;border-radius:50%;display:grid;place-content:center;text-align:center;background:var(--ink);color:white}.timer span{font-size:2.6rem;font-weight:950;line-height:.9}.timer small{font-size:.72rem;text-transform:uppercase;letter-spacing:.12em}.options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:28px 0}.option{margin:0}.option input{position:absolute;opacity:0;width:1px}.option span{display:block;border:2px solid #d7e1ec;border-radius:15px;padding:16px;background:white}.option input:checked+span{border-color:var(--blue);background:#eaf3ff;box-shadow:0 0 0 3px #bfd9ff}.matrix fieldset{border:0;border-top:1px solid #dce6f0;padding:18px 0}.matrix legend{font-weight:850;padding-top:12px}.scale{display:flex;gap:8px;flex-wrap:wrap}.scale label{margin:0}.scale input{position:absolute;opacity:0;width:1px}.scale span{display:block;padding:9px 12px;border:1px solid #bcccdc;border-radius:9px;background:white;font-size:.88rem}.scale input:checked+span{background:var(--blue);color:white;border-color:var(--blue)}.result{margin:18px 0}.result>div:first-child{display:flex;justify-content:space-between;gap:20px}.bar{height:15px;background:#e5edf5;border-radius:99px;overflow:hidden;margin-top:7px}.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:99px}.pulse{width:22px;height:22px;border-radius:50%;background:var(--cyan);margin:34px auto;box-shadow:0 0 0 0 rgba(20,184,166,.4);animation:pulse 1.8s infinite}@keyframes pulse{70%{box-shadow:0 0 0 25px rgba(20,184,166,0)}}.live-shell{width:min(1500px,calc(100% - 60px))}.live-grid{min-height:72vh;display:grid;grid-template-columns:1.4fr .6fr;gap:50px;align-items:center}.live-grid h1,.live-question h1,.live-end h1{font-size:clamp(3rem,6vw,6.5rem)}#qr{background:white;padding:18px;border-radius:24px;box-shadow:var(--shadow)}.join-url{font-size:1.4rem}.big-code{font-weight:950;color:var(--ink);font-size:3rem;letter-spacing:.15em}.stats{display:grid;grid-template-columns:auto auto;gap:4px 14px;width:max-content}.stats b{font-size:2.4rem}.stats span{align-self:center}.live-options{display:grid;grid-template-columns:1fr 1fr;gap:16px}.live-options div{display:flex;align-items:center;gap:15px;background:white;padding:18px;border-radius:16px;font-size:1.25rem;font-weight:750}.live-options span{display:grid;place-items:center;width:42px;height:42px;background:var(--blue);color:white;border-radius:10px}.response-counter{margin-top:30px;text-align:right;font-size:1.2rem}.response-counter b{font-size:2rem}.control-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}.control-grid dl{display:grid;grid-template-columns:1fr auto;gap:10px;border-top:1px solid #dce6f0;padding-top:18px}.control-grid dt{color:var(--muted)}.control-grid dd{font-weight:900}.controls{display:grid;gap:10px}.controls .danger{background:var(--danger);color:white}.muted{font-size:.9rem}.landing{padding-top:15vh;max-width:900px}.landing h1{max-width:800px}.code-form{max-width:560px;margin-top:40px}.code-form div{display:flex;gap:10px}.code-form input{text-transform:uppercase;font-weight:900;letter-spacing:.12em}@media(max-width:760px){.grid.two,.options,.control-grid,.live-grid,.live-options{grid-template-columns:1fr}.app-shell{width:min(100% - 20px,760px);padding-top:14px}.card{padding:24px;border-radius:20px}.question-head{align-items:center}.timer{width:78px;height:78px}.timer span{font-size:1.8rem}h1{font-size:2rem}.option span{padding:14px}.live-shell{width:calc(100% - 24px)}#qr{max-width:100%;height:auto}.code-form div{flex-direction:column}}