.classroom-hero{max-width:1120px;margin:auto;padding:82px 28px 68px;display:grid;grid-template-columns:1fr 1.05fr;gap:70px;align-items:center}.classroom-copy h1{font-size:clamp(40px,5.3vw,68px);line-height:1.07;letter-spacing:-3px;margin:0}.classroom-copy>p:not(.eyebrow){color:var(--muted);line-height:1.75;font-size:15px;max-width:430px;margin:19px 0 0}.visual-timer{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:24px;text-align:center;box-shadow:var(--shadow)}.activity-label{font-weight:800;font-size:12px;margin:0;color:var(--text)}.clock-ring{--progress:0;--ring:var(--accent);width:min(330px,72vw);aspect-ratio:1;border-radius:50%;margin:22px auto 16px;display:grid;place-items:center;background:conic-gradient(var(--ring) calc(var(--progress) * 1%),var(--surface-2) 0);position:relative;transition:background .35s}.clock-ring:before{content:"";position:absolute;inset:15px;background:var(--surface);border-radius:50%}.clock-ring output{position:relative;font:500 clamp(43px,7.2vw,70px) 'DM Mono',monospace;letter-spacing:-4px}.time-status{margin:0 0 18px;color:var(--muted);font-size:12px}.classroom-controls{display:flex;justify-content:center;gap:9px}.classroom-controls .button{min-width:140px}.classroom-panel{max-width:1064px;margin:auto;padding:34px 28px 75px;border-top:1px solid var(--line)}.classroom-panel h2,.teacher-content h2{font-size:28px;letter-spacing:-1.3px;margin:0}.classroom-panel .eyebrow{margin-bottom:8px}.activity-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:24px}.activity-grid button{background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:12px;padding:17px;text-align:left;display:grid;grid-template-columns:27px 1fr;column-gap:8px;transition:.18s}.activity-grid button:hover,.activity-grid button.selected{border-color:var(--accent);background:var(--surface-2)}.activity-grid span{grid-row:span 2;color:var(--accent-text);font:500 11px 'DM Mono',monospace}.activity-grid b{font-size:13px}.activity-grid small{color:var(--muted);font-size:11px;margin-top:4px}.custom-time{display:flex;align-items:center;gap:10px;margin-top:18px;color:var(--muted);font-size:12px}.custom-time label{font-weight:700}.custom-time input{width:70px;background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:9px;color:var(--text);font:500 14px 'DM Mono',monospace}.custom-time button{border:0;background:var(--accent);color:var(--accent-ink);font-weight:800;border-radius:8px;padding:10px 15px;font-size:12px}.teacher-content{background:color-mix(in srgb,var(--surface) 70%,transparent);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:72px max(28px,calc((100vw - 1008px)/2));}.teacher-content h2{max-width:500px}.teacher-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;margin-top:35px}.teacher-grid span{font:500 11px 'DM Mono',monospace;color:var(--accent-text)}.teacher-grid h3{margin:14px 0 8px;font-size:17px;letter-spacing:-.4px}.teacher-grid p{font-size:13px;color:var(--muted);line-height:1.7;margin:0}@media(max-width:700px){.classroom-hero{grid-template-columns:1fr;padding:58px 18px 52px;gap:36px}.classroom-copy h1{letter-spacing:-2.5px}.classroom-panel{padding:30px 18px 58px}.activity-grid{grid-template-columns:1fr 1fr}.teacher-content{padding:54px 18px}.teacher-grid{grid-template-columns:1fr;gap:25px}.custom-time{flex-wrap:wrap}.classroom-controls .button{min-width:0}.clock-ring{width:min(320px,80vw)}}

.classroom-faq{max-width:1064px;margin:auto;padding:70px 28px 78px}.classroom-faq h2{margin:0;font-size:clamp(25px,3vw,32px);letter-spacing:-1.3px}.faq-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:27px}.faq-grid article{border:1px solid var(--line);border-radius:16px;padding:20px;background:var(--card)}.faq-grid h3{margin:0 0 9px;font-size:15px;letter-spacing:-.3px}.faq-grid p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}.classroom-links{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}.classroom-links a{border:1px solid var(--line);border-radius:999px;padding:9px 13px;color:var(--muted);font-size:12px;font-weight:800}.classroom-links a:hover{border-color:var(--accent);color:var(--text)}@media(max-width:700px){.classroom-faq{padding:54px 18px}.faq-grid{grid-template-columns:1fr}}