/* 낮(밝은 회녹색)과 밤(남색) 두 톤에 호박색 강조 하나 */
:root {
  --bg: #EEF0EC;
  --panel: #F9FAF7;
  --line: #D5DAD3;
  --fg: #1B2430;
  --muted: #4F5B68;
  --accent: #D9962B;
  --accent-text: #9A5F0A;
  --cool: #3F6FB0;
  --ok: #2E7D4F;
  --ok-bg: #E3F1E8;
  --no: #B4413A;
  --no-bg: #F6E3E1;
  --display: 'Gowun Batang', Georgia, serif;
  --body: 'IBM Plex Sans KR', 'Apple SD Gothic Neo', 'Malgun Gothic', Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141C28; --panel: #1E2A3A; --line: #2E3D52; --fg: #EEF0F2; --muted: #A9B4C2;
    --accent-text: #E9B65A; --cool: #8FB3E6; --ok: #7FD1A0; --ok-bg: #1D3A2B; --no: #F09A92; --no-bg: #3E2326;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font-family: var(--body); font-size: 17px; line-height: 1.6; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.wrap { max-width: 960px; margin: 0 auto; padding: 48px max(16px, env(safe-area-inset-left, 0px)) 64px; display: flex; flex-direction: column; gap: 40px; }
.eyebrow { margin: 0; font-size: 14px; letter-spacing: .06em; color: var(--accent-text); }
.muted { color: var(--muted); margin: 0; }
h1, h2 { font-family: var(--display); text-wrap: balance; margin: 0; }

.hero { position: relative; isolation: isolate; display: flex; flex-direction: column; gap: 16px; padding-block: 24px; }
.hero h1 { font-size: clamp(48px, 9vw, 88px); font-weight: 400; line-height: 1.1; }
.lead { margin: 0; max-width: 34em; color: var(--muted); font-size: 19px; }
.sun { position: absolute; right: 0; top: 24px; width: clamp(120px, 26vw, 240px); aspect-ratio: 1; border-radius: 50%;
  border: 2px solid var(--accent); background: linear-gradient(90deg, var(--accent) 50%, transparent 50%); opacity: .9; z-index: -1; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr)); gap: 16px; }
.stats div { border-top: 3px solid var(--fg); padding-top: 12px; display: flex; flex-direction: column; gap: 4px; }
.stats b { font-family: var(--display); font-size: 40px; font-weight: 400; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stats b.cool { color: var(--cool); }
.stats span { color: var(--muted); font-size: 14px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 16px; }
.card { display: flex; flex-direction: column; gap: 8px; padding: 28px; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; text-decoration: none; transition: transform .15s, border-color .15s; }
.card:hover { transform: translateY(-2px); border-color: var(--accent); }
.card h2 { font-size: 28px; }
.card p { margin: 0; color: var(--muted); }
.tag { align-self: flex-start; font-size: 13px; color: var(--accent-text); border: 1px solid var(--accent); border-radius: 999px; padding: 1px 10px; }
.foot { font-size: 14px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 16px; }
.foot p { margin: 0; }

/* 퀴즈 */
.quiz { max-width: 720px; gap: 24px; }
.back { font-size: 14px; color: var(--muted); text-decoration: none; }
.qhead { display: flex; flex-direction: column; gap: 8px; }
.qhead h1 { font-size: clamp(36px, 7vw, 56px); font-weight: 700; }
.qmeta { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.qprog { flex: 1; height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; }
.qprog i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .3s; }
.qcard { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: clamp(20px, 4vw, 36px); display: flex; flex-direction: column; gap: 20px; }
.qcard h2 { font-size: clamp(22px, 4vw, 28px); line-height: 1.4; }
.opts { display: grid; gap: 10px; }
.opt { text-align: left; font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; cursor: pointer; transition: border-color .15s; }
.opt:hover:not(:disabled) { border-color: var(--accent); }
.opt:disabled { cursor: default; }
.opt.right { background: var(--ok-bg); border-color: var(--ok); color: var(--ok); font-weight: 600; }
.opt.right::after { content: '  ✓ 정답'; }
.opt.wrong { background: var(--no-bg); border-color: var(--no); color: var(--no); }
.opt.wrong::after { content: '  ✕ 선택'; }
.explain { border-radius: 12px; padding: 14px 18px; line-height: 1.6; }
.explain.ok { background: var(--ok-bg); }
.explain.no { background: var(--no-bg); }
.btn { align-self: flex-start; font: inherit; padding: 10px 20px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); cursor: pointer; text-decoration: none; }
.btn.primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.result .big { margin: 0; font-family: var(--display); font-size: 88px; line-height: 1; }
.result .big small { font-size: 32px; color: var(--muted); }
.row { display: flex; flex-wrap: wrap; gap: 12px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }