/* Coding Classroom v0.6.2 — school-ready UI polish */
:root{--brand-navy:#173760;--brand-blue:#236bd8;--brand-sky:#eaf4ff;--brand-gold:#f4b942;--brand-slate:#445972}
body{background:linear-gradient(180deg,#f7f9fc 0,#f4f7fb 100%)}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);box-shadow:0 8px 28px rgba(23,55,96,.06)}
.brand-mark{width:46px;height:46px;display:block;filter:drop-shadow(0 4px 8px rgba(23,55,96,.14))}.site-brand{color:var(--brand-navy)}
.main-nav a{border:1px solid transparent}.main-nav a.active{background:#edf4ff;border-color:#d8e6fb;color:#174f9f}
.home-hero{background:radial-gradient(circle at 92% 12%,rgba(85,179,237,.23),transparent 30%),linear-gradient(135deg,#eef6ff 0,#f8fbff 62%,#eef9f5 100%);border-color:#d7e7f6;box-shadow:0 18px 50px rgba(29,73,121,.08)}.home-hero h1{color:var(--brand-navy)}
.teacher-cta{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 16px;border-radius:13px;border:1px solid #d8e2ed;color:#344d6e;background:#fff;font-weight:700}.teacher-cta:hover{border-color:#9eb8d8;background:#f8fbff}
.audience-gateway{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:26px 0 30px}.audience-card{position:relative;display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;padding:24px 26px;border:1px solid #dce5ef;border-radius:16px;background:#fff;box-shadow:0 10px 28px rgba(34,61,92,.06);transition:transform .18s,border-color .18s,box-shadow .18s}.audience-card:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(34,61,92,.1)}.audience-card.student:hover{border-color:#9fc4f7}.audience-card.teacher:hover{border-color:#b7c4d4}.audience-icon{display:grid;place-items:center;width:52px;height:52px;border-radius:14px;background:#eaf3ff;color:#1d60bd;font:700 1.5rem/1 system-ui}.audience-card.teacher .audience-icon{background:#edf1f5;color:#3f5773}.audience-card h2{font-size:1.2rem;margin:3px 0 6px}.audience-card p:not(.eyebrow){margin:0 0 12px;color:var(--muted);font-size:.9rem}.audience-card strong{color:#205cad;font-size:.9rem}
.focus-card,.unit-article,.world-section,.home-progress,.continue-card,.transfer-card,.badge-section{box-shadow:0 10px 30px rgba(28,63,103,.045)}.mobile-lab-tabs{display:none}
.info-page{padding-bottom:28px}.info-heading{border-bottom:1px solid var(--line);margin-bottom:24px}.info-heading>div{max-width:900px}.info-heading p:not(.eyebrow){max-width:780px}.about-logo{width:92px;height:92px;filter:drop-shadow(0 12px 18px rgba(23,55,96,.15))}
.info-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.info-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;min-height:220px}.info-card .step-no{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:10px;background:#edf4ff;color:#205cae;font-weight:800;font-size:.8rem}.info-card h2{font-size:1.05rem;margin:18px 0 8px}.info-card p{font-size:.9rem;color:var(--muted);margin:0}
.share-classroom{margin-top:24px;background:linear-gradient(135deg,#18395f,#215d9d);color:#fff;border-radius:18px;padding:28px;display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:22px;align-items:start}.share-classroom .eyebrow{color:#a8d2ff}.share-classroom h2{margin:4px 0 8px}.share-classroom p{color:#d9e7f6}.share-box{background:#fff;color:var(--ink);border-radius:12px;padding:18px}.share-box label{display:block;font-size:.82rem;font-weight:750;margin-bottom:7px}.share-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.share-row input{min-width:0;border:1px solid var(--line);border-radius:10px;padding:10px 12px;color:#4b627d;background:#f8fafc}.share-row .primary-cta,.share-row .secondary-cta{min-height:44px;padding:8px 14px;box-shadow:none}.share-status{font-size:.8rem;margin:8px 0 0;color:#526a84;min-height:1.3em}.qr-panel{grid-column:1/-1;display:flex;gap:22px;align-items:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:18px}.qr-panel[hidden]{display:none}.qr-panel img{width:180px;height:180px;background:#fff;border-radius:10px;padding:8px}.qr-panel p{margin:4px 0 8px}.qr-panel small{display:block;color:#bcd1e6;max-width:580px}.teacher-note{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:18px 0;padding:18px 20px;border:1px solid #ead8a1;background:#fff9e7;border-radius:12px;color:#68501a}.teacher-note span{font-size:.88rem}
.about-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,.7fr);gap:20px}.about-main,.developer-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px}.about-main h2{font-size:1.5rem;margin:5px 0 12px}.about-main>p:not(.eyebrow){color:var(--muted);max-width:850px}.feature-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.feature-pills span{padding:7px 11px;border-radius:999px;background:#eef4fb;color:#365b87;font-size:.8rem;font-weight:700}.developer-card{background:linear-gradient(160deg,#18395f,#204f83);color:#fff}.developer-card .eyebrow{color:#a8d2ff}.developer-card h2{font-size:1.45rem;margin:10px 0 2px}.developer-card p{color:#dbe8f6;margin:0}.developer-card hr{border:0;border-top:1px solid rgba(255,255,255,.2);margin:22px 0}.developer-card small{color:#bfd1e3}
.site-footer-v062{display:grid;grid-template-columns:minmax(220px,1fr) minmax(280px,1.3fr) auto auto;align-items:center;gap:24px;padding-top:24px;padding-bottom:24px;background:#fff}.footer-brand a{display:flex;align-items:center;gap:10px}.footer-brand img{width:38px;height:38px}.footer-brand span{display:grid}.footer-brand strong{color:var(--brand-navy)}.footer-brand small{color:#78899c}.footer-developer{display:grid;line-height:1.35}.footer-developer>span{font-size:.72rem;color:#8493a5}.footer-developer strong{color:#314c6c;font-size:.9rem}.footer-developer small{color:#6d8096;margin-top:3px}.footer-links{display:flex;gap:14px;white-space:nowrap}.footer-links a{font-size:.8rem;color:#385e8b;font-weight:700}.footer-version{display:grid;text-align:right;white-space:nowrap}.footer-version strong{color:#294e78}.footer-version small{color:#8392a4}
@media(max-width:1050px){.info-grid{grid-template-columns:1fr 1fr}.share-classroom{grid-template-columns:1fr}.share-classroom .share-box{grid-column:1}.site-footer-v062{grid-template-columns:1fr 1.2fr}.footer-links,.footer-version{justify-self:start;text-align:left}.about-layout{grid-template-columns:1fr}}
@media(max-width:700px){.brand-mark{width:38px;height:38px}.audience-gateway{grid-template-columns:1fr;gap:10px;margin:18px 0 24px}.audience-card{padding:18px;border-radius:12px}.audience-icon{width:44px;height:44px}.teacher-cta{flex:1}.mobile-lab-tabs{display:grid;grid-template-columns:repeat(3,1fr);position:sticky;top:calc(var(--site-header-height,130px) + 6px);z-index:25;margin:0 0 12px;padding:5px;background:rgba(240,245,251,.96);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:12px}.mobile-lab-tabs button{border:0;border-radius:8px;background:transparent;padding:9px 6px;color:#53677f;font-weight:700}.mobile-lab-tabs button[aria-pressed=true]{background:#1f5fae;color:#fff}.in-lab #labWorkspace[data-mobile-panel=mission] .program-panel,.in-lab #labWorkspace[data-mobile-panel=mission] .stage-panel{display:none}.in-lab #labWorkspace[data-mobile-panel=code] .lesson-panel,.in-lab #labWorkspace[data-mobile-panel=code] .stage-panel{display:none}.in-lab #labWorkspace[data-mobile-panel=result] .lesson-panel,.in-lab #labWorkspace[data-mobile-panel=result] .program-panel{display:none}.info-grid{grid-template-columns:1fr}.info-card{min-height:0}.share-classroom{padding:20px}.share-row{grid-template-columns:1fr}.share-row .primary-cta,.share-row .secondary-cta{width:100%}.qr-panel{display:grid;justify-items:center;text-align:center}.qr-panel img{width:190px;height:190px}.teacher-note{display:grid}.about-main,.developer-card{padding:22px}.site-footer-v062{grid-template-columns:1fr;padding:22px 18px;gap:16px}.footer-links{order:3}.footer-version{order:4}.footer-developer{order:2}.footer-brand{order:1}.footer-version{text-align:left}.site-footer>span{display:initial}}
@media(prefers-reduced-motion:reduce){.audience-card,.primary-cta{transition:none!important}.audience-card:hover,.primary-cta:hover{transform:none!important}}