:root{--bg:#f4f7fb;--panel:#fff;--ink:#101828;--muted:#667085;--line:#e4e7ec;--navy:#0b1220;--navy2:#131d31;--accent:#15b87a;--accent2:#0f9f69;--danger:#d92d20;--warning:#f79009;--shadow:0 14px 40px rgba(16,24,40,.08);--radius:18px}
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50px;min-width:0}.topbar{display:flex;align-items:center;gap:16px;justify-content:space-between;margin-bottom:22px}.topbar h2{margin:0}.topbar p{margin:4px 0 0}.pill{background:#e8f8f1;color:#087a51;padding:7px 11px;border-radius:999px;font-size:12px;font-weight:750}.hero-card{background:linear-gradient(135deg,#0d1729,#152946);color:#fff;border-radius:24px;padding:28px;display:flex;justify-content:space-between;gap:22px;box-shadow:var(--shadow)}.hero-card h3{font-size:28px;margin:8px 0}.hero-card .muted{color:#b8c1d1}.eyebrow{font-size:11px;letter-spacing:.12em;font-weight:800;color:#19c989}.hero-actions{display:flex;align-items:center;gap:14px;margin-top:20px}.hero-stat{min-width:190px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);border-radius:18px;padding:18px;display:grid;grid-template-columns:1fr auto;gap:9px 14px;align-content:center}.hero-stat span{font-size:12px;color:#aeb8c8}.hero-stat 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@media(max-width:1000px){.stats-grid{grid-template-columns:repeat(2,1fr)}.grid-2{grid-template-columns:1fr}.quiz-layout{grid-template-columns:1fr}.question-nav-card{order:-1}.question-nav{grid-template-columns:repeat(10,1fr)}}
@media(max-width:760px){.app-shell{display:block}.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.open{transform:none}.main{padding:16px}.mobile-only{display:inline-block}.topbar{justify-content:flex-start}.topbar .pill{margin-left:auto}.hero-card{flex-direction:column}.hero-stat{min-width:0}.stats-grid{grid-template-columns:1fr 1fr}.form-grid{grid-template-columns:1fr}.span-2{grid-column:auto}.rules-grid{grid-template-columns:1fr}.question-text{font-size:19px}.question-nav{grid-template-columns:repeat(5,1fr)}}
@media(max-width:480px){.stats-grid{grid-template-columns:1fr}.auth-card{padding:26px 20px}.hero-card{padding:22px}.main{padding:12px}.card{padding:16px}}