/* QUIZ-WORLD Community view (qw-community.js): hero, share cards, share modal, leaderboard and teacher review. */
.qc-hero {
  position: relative; display: grid; grid-template-columns: 1.2fr 1fr; gap: 28px; align-items: center; padding: clamp(22px, 4vw, 40px); border-radius: var(--radius-card); overflow: hidden; color: var(--text);
  background: var(--surface); box-shadow: none;
}
.qc-hero::after { content: ""; position: absolute; width: 340px; height: 340px; right: -110px; bottom: -150px; border-radius:50%; background: var(--surface); pointer-events: none; animation: qc-float 9s ease-in-out infinite alternate; }
@keyframes qc-float { to { transform: translate3d(-30px, -24px, 0) scale(1.15); } }
.qc-hero .eyebrow { color: var(--text-muted); } .qc-hero h2 { margin: 0 0 10px; font: 700 clamp(1.8rem, 4vw, 2.7rem)/1.08 Inter, system-ui, sans-serif; letter-spacing: -.03em; }
.qc-hero-copy p { color: var(--text-muted); line-height: 1.6; max-width: 46ch; } .qc-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.qc-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; position: relative; z-index: 1; }
.qc-stat { padding: 16px 18px; border-radius: var(--radius-card); background: var(--surface-hover); border: 1px solid var(--border); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.qc-stat b { display: block; font: 700 2rem/1 Inter, system-ui, sans-serif; letter-spacing: -.03em; font-variant-numeric: tabular-nums; } .qc-stat span { display: block; margin-top: 6px; color: var(--text-muted); font-size: .78rem; font-weight: 600; }
@media (max-width: 820px) { .qc-hero { grid-template-columns: 1fr; border-radius: var(--radius-card); } .qc-stats { grid-template-columns: repeat(4, 1fr); } .qc-stat { padding: 12px 10px; } .qc-stat b { font-size: 1.4rem; } .qc-stat span { font-size: .68rem; } }
@media (max-width: 480px) { .qc-stats { grid-template-columns: 1fr 1fr; } }

.qc-tabs { display: flex; gap: 6px; margin: 18px 0 4px; padding: 5px; width: max-content; max-width: 100%; overflow-x: auto; border-radius:999px; background: var(--surface-hover); }
.qc-tabs button { display: inline-flex; align-items: center; gap: 8px; min-height: 42px !important; padding: 0 18px !important; border: 0 !important; border-radius:999px !important; background: transparent !important; box-shadow: none !important; font-weight:600; color: var(--slate, var(--text-muted)) !important; white-space: nowrap; transition: background .25s ease, color .25s ease, transform .3s var(--qu-spring, ease); }
.qc-tabs button .qi { width: 18px; height: 18px; } .qc-tabs button.on { background: var(--bg) !important; color: var(--ink, var(--text)) !important; box-shadow: none; }
[data-theme="dark"] .qc-tabs { background: var(--surface-hover); } [data-theme="dark"] .qc-tabs button { color: var(--text-muted) !important; } [data-theme="dark"] .qc-tabs button.on { background: var(--surface-hover) !important; color: var(--text-muted) !important; }
.qc-dot { min-width: 20px; height: 20px; border-radius: var(--radius-input); background: var(--danger); color: var(--text); font: 800 11px/20px Inter, system-ui, sans-serif; text-align: center; font-style: normal; padding: 0 5px; }
.qc-body { margin-top: 6px; }

.qc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 12px; }
.qc-card { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px; border-radius: var(--radius-card); border: 1px solid var(--line, var(--border)); background: var(--platinum-2, var(--surface)); transition: transform .35s var(--qu-spring, ease), border-color .25s ease, box-shadow .25s ease; }
.qc-card:hover { transform: translateY(-3px); border-color: var(--border); box-shadow: none; }
.qc-card strong { display: block; } .qc-card small { color: var(--muted, var(--text-muted)); }
[data-theme="dark"] .qc-card { background: var(--surface-hover); border-color: var(--border); }
.qc-list { display: grid; gap: 10px; }
.qc-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 16px 18px; border-radius: var(--radius-card); border: 1px solid var(--line, var(--border)); background: var(--platinum-2, var(--surface)); border-left: 4px solid var(--border); }
.qc-row.qc-wait { border-left-color: var(--border); } .qc-row.qc-ok { border-left-color: var(--border); } .qc-row.qc-bad { border-left-color: var(--danger); } .qc-row.qc-off { border-left-color: var(--border); opacity: .8; }
[data-theme="dark"] .qc-row { background: var(--surface-hover); border-color: var(--border); }
.qc-row-main { min-width: 0; flex: 1 1 280px; display: grid; gap: 6px; } .qc-row-main small { color: var(--muted, var(--text-muted)); line-height: 1.5; display: block; }
.qc-row-title { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; } .qc-row-title strong { font-size: 1.02rem; }
.qc-chip { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius:999px; font: 700 .72rem/1.4 Inter, system-ui, sans-serif; background: var(--surface-hover); color: var(--text); } .qc-chip .qi { width: 14px; height: 14px; }
.qc-chip-wait { background: var(--surface-hover); color: var(--text); } .qc-chip-ok { background: var(--surface-hover); color: var(--text); } .qc-chip-bad { background: color-mix(in srgb, var(--danger) 12%, var(--bg)); color: var(--danger); } .qc-chip-off { background: var(--surface-hover); color: var(--text-muted); }
[data-theme="dark"] .qc-chip { background: var(--surface-hover); color: var(--text-muted); } [data-theme="dark"] .qc-chip-wait { background: var(--surface-hover); color: var(--text); } [data-theme="dark"] .qc-chip-bad { background: color-mix(in srgb, var(--danger) 12%, var(--bg)); color: var(--danger); }
.qc-ig { display: inline-flex; align-items: center; gap: 4px; font-weight:600; color: var(--text-muted); text-decoration: none; } .qc-ig:hover { text-decoration: underline; } .qc-ig .qi { width: 14px; height: 14px; }
[data-theme="dark"] .qc-ig { color: var(--text-muted); }
.qc-note { font-style: italic; } .qc-results { display: flex; gap: 18px; margin-top: 2px; font-size: .84rem; color: var(--muted, var(--text-muted)); } .qc-results b { color: var(--ink, var(--text)); font-size: 1.05rem; } [data-theme="dark"] .qc-results b { color: var(--text); }
.qc-review-actions { display: flex; flex-wrap: wrap; align-items: end; gap: 10px; }
.qc-points { display: grid; gap: 4px; font-size: .72rem; font-weight:600; color: var(--muted, var(--text-muted)); } .qc-points input { width: 84px; min-height: 44px; text-align: center; font-weight:600; font-size: 16px; }

/* leaderboard */
.qc-seg { display: inline-flex; padding: 4px; border-radius:999px; background: var(--surface-hover); } .qc-seg button { min-height: 38px !important; padding: 0 16px !important; border: 0 !important; border-radius:999px !important; background: transparent !important; box-shadow: none !important; font-weight:600; font-size: .85rem; }
.qc-seg button.on { background: var(--bg) !important; box-shadow: none; } [data-theme="dark"] .qc-seg button.on { background: var(--surface-hover) !important; }
.qc-board { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 8px; counter-reset: none; }
.qc-lb { display: grid; grid-template-columns: 52px minmax(0, 1fr) repeat(3, 64px); gap: 10px; align-items: center; padding: 12px 16px; border-radius: var(--radius-card); border: 1px solid var(--line, var(--border)); background: var(--platinum-2, var(--surface)); transition: transform .3s var(--qu-spring, ease), border-color .2s; }
.qc-lb:hover { transform: translateX(4px); border-color: var(--border); } [data-theme="dark"] .qc-lb { background: var(--surface-hover); border-color: var(--border); }
.qc-lb.me { border-color: var(--border); box-shadow: none; } .qc-lb em { font: 800 .65rem/1 Inter, system-ui, sans-serif; letter-spacing: .08em; text-transform: uppercase; padding: 3px 7px; border-radius:999px; background: var(--surface-hover); color: var(--text); font-style: normal; margin-left: 6px; vertical-align: 2px; }
.qc-rank { position: relative; display: grid; place-items: center; width: 44px; height: 44px; border-radius: var(--radius-input); background: var(--surface-hover); font: 800 1.05rem Inter, system-ui, sans-serif; }
.qc-rank .qi { position: absolute; width: 20px; height: 20px; top: -8px; right: -6px; } .qc-rank b { font-variant-numeric: tabular-nums; }
.qc-medal-1 .qc-rank { background: var(--surface); color: var(--text); box-shadow: none; } .qc-medal-1 .qc-rank .qi { color: var(--text-muted); }
.qc-medal-2 .qc-rank { background: var(--surface); color: var(--text); } .qc-medal-3 .qc-rank { background: var(--surface); color: var(--text); }
.qc-lb-who strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } .qc-lb-who small { color: var(--muted, var(--text-muted)); } .qc-lb-who small .qc-role { text-transform: capitalize; }
.qc-lb-num { text-align: center; } .qc-lb-num b { display: block; font: 800 1.15rem/1 Inter, system-ui, sans-serif; font-variant-numeric: tabular-nums; } .qc-lb-num small { color: var(--muted, var(--text-muted)); font-size: .68rem; font-weight:600; text-transform: uppercase; letter-spacing: .06em; }
.qc-lb-pts b { color: var(--text-muted); } [data-theme="dark"] .qc-lb-pts b { color: var(--text-muted); }
@media (max-width: 640px) { .qc-lb { grid-template-columns: 44px minmax(0, 1fr) 52px 52px; padding: 10px 12px; } .qc-lb-num:nth-of-type(2) { display: none; } .qc-rank { width: 38px; height: 38px; } }

/* share modal */
.qc-form fieldset { border: 0; margin: 16px 0 0; padding: 0; min-width: 0; } .qc-form legend { padding: 0; margin-bottom: 8px; font-size: .82rem; font-weight:600; color: var(--qu-muted, var(--text-muted)); }
.qc-aud { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; } .qc-aud legend { grid-column: 1/-1; }
.qc-pick { position: relative; cursor: pointer; } .qc-pick input { position: absolute; opacity: 0; }
.qc-pick > span { display: grid; gap: 2px; padding: 14px; border-radius: var(--radius-card); border: 2px solid var(--qu-line, var(--border)); transition: border-color .2s, background .2s, transform .3s var(--qu-spring, ease); }
.qc-pick > span .qi { width: 22px; height: 22px; color: var(--text-muted); margin-bottom: 4px; } .qc-pick b { font-size: .95rem; } .qc-pick small { color: var(--qu-muted, var(--text-muted)); line-height: 1.4; }
.qc-pick:hover > span { transform: translateY(-2px); } .qc-pick input:checked + span { border-color: var(--border); background: var(--surface-hover); } .qc-pick input:focus-visible + span { outline: 2px solid var(--border); outline-offset: 2px; }
@media (max-width: 520px) { .qc-aud { grid-template-columns: 1fr; } }
.qc-at { display: flex; align-items: center; border: 1px solid var(--qu-line, var(--border)); border-radius: var(--radius-input); background: var(--qu-card, var(--bg)); overflow: hidden; } .qc-at:focus-within { border-color: var(--border); box-shadow: none; }
.qc-at i { padding: 0 4px 0 14px; font-style: normal; font-weight:600; color: var(--text-muted); } .qc-at input { border: 0 !important; box-shadow: none !important; flex: 1; background: transparent !important; outline: none; }
.qc-tools { display: grid; gap: 4px; }
.qc-switch { display: flex; align-items: center; gap: 12px; padding: 8px 4px; cursor: pointer; } .qc-switch input { position: absolute; opacity: 0; }
.qc-track { position: relative; flex: none; width: 46px; height: 28px; border-radius:999px; background: var(--surface-hover); transition: background .25s ease; } .qc-track i { position: absolute; left: 3px; top: 3px; width: 22px; height: 22px; border-radius:50%; background: var(--bg); box-shadow: none; transition: transform .35s var(--qu-spring, ease); }
.qc-switch input:checked + .qc-track { background: var(--surface-hover); } .qc-switch input:checked + .qc-track i { transform: translateX(18px); } .qc-switch input:focus-visible + .qc-track { outline: 2px solid var(--border); outline-offset: 2px; }
.qc-label b { display: block; font-size: .92rem; color: var(--qu-text, var(--text)); } .qc-label small { color: var(--qu-muted, var(--text-muted)); }
.qc-consent { display: flex; gap: 10px; align-items: flex-start; margin-top: 14px; font-size: .88rem; color: var(--qu-text, var(--text)); line-height: 1.45; cursor: pointer; } .qc-consent input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--surface-hover); flex: none; }
.qc-done { text-align: center; padding: 6px 0; } .qc-done h3 { margin: 10px 0 6px; font-size: 1.4rem; } .qc-done p { color: var(--qu-muted, var(--text-muted)); line-height: 1.55; }
.qc-burst { width: 76px; height: 76px; margin: 0 auto; border-radius:50%; display: grid; place-items: center; color: var(--text); background: var(--surface); animation: qc-pop .7s var(--qu-spring, ease) both; box-shadow: none; } .qc-burst .qi { width: 38px; height: 38px; stroke-width: 2.6; }
@keyframes qc-pop { 0% { transform: scale(.2) rotate(-40deg); opacity: 0; } 60% { box-shadow: none; } 100% { transform: none; opacity: 1; } }
.qc-linkbox { display: flex; align-items: center; gap: 8px; margin: 14px 0 4px; padding: 6px 6px 6px 14px; border-radius: var(--radius-input); background: var(--surface-hover); border: 1px dashed var(--border); } .qc-linkbox code { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .85rem; text-align: left; }
.qc-done .qu-actions { justify-content: center; }
@media (prefers-reduced-motion: reduce) { .qc-hero::after, .qc-burst { animation: none; } }

.qc-nudge { display: flex; align-items: center; gap: 16px; margin: 14px 0; padding: 14px 18px; border-radius: var(--radius-card); border: 1px solid var(--border); background: var(--surface); animation: qc-nudge-in .6s cubic-bezier(.34, 1.56, .64, 1) both; }
.qc-nudge strong { display: block; } .qc-nudge small { color: var(--muted, var(--text-muted)); } .qc-nudge button { margin-left: auto; flex: none; }
.qc-nudge-ico { width: 44px; height: 44px; flex: none; border-radius: var(--radius-card); display: grid; place-items: center; color: var(--text); background: var(--surface); animation: qc-wiggle 2.4s ease-in-out 1s infinite; } .qc-nudge-ico .qi { width: 24px; height: 24px; }
@keyframes qc-nudge-in { from { opacity: 0; transform: translate3d(0, -10px, 0) scale(.97); } to { opacity: 1; transform: none; } }
@keyframes qc-wiggle { 0%, 80%, 100% { transform: rotate(0); } 85% { transform: rotate(-12deg); } 90% { transform: rotate(10deg); } 95% { transform: rotate(-6deg); } }
@media (max-width: 560px) { .qc-nudge { flex-wrap: wrap; } .qc-nudge button { width: 100%; margin: 4px 0 0; } }
@media (prefers-reduced-motion: reduce) { .qc-nudge, .qc-nudge-ico { animation: none; } }

/* stories in the workspace */
.qc-kind { margin-bottom: 14px; }
.qc-kind button .qi { width: 16px; height: 16px; margin-right: 6px; }
.qs-peek { margin-top: 8px; } .qs-peek summary { cursor: pointer; font-weight:600; color: var(--sapphire-deep, var(--text)); }
html[data-theme="dark"] .qs-peek summary { color: var(--text-muted); }
.qs-peek .qs-body { margin-top: 10px; padding: 12px 14px; border-radius: var(--radius-input); background: var(--surface-subtle, var(--surface)); font-size: .95rem; max-height: 320px; overflow-y: auto; }

.qc-on-feed .qc-hero { display: none; }
.qc-tabs { overflow-x: auto; scrollbar-width: none; }
.qc-tabs::-webkit-scrollbar { display: none; }