/* ============================================
   오늘의 은시세 — silver.onebit.co.kr
   v9 · Navy × Gold × Ivory 편집 매거진 톤
   ============================================ */

:root {
  --navy: #1F2A44;
  --navy-alt: #2A3556;
  --ivory: #F5F1E8;
  --ivory-warm: #FCFAF3;
  --gold: #B29B76;
  --gold-deep: #8F7B57;
  --text: #1F2A44;
  --text-2: #5F6478;
  --text-3: #9B9EA8;
  --border: #E8E4D8;
  --border-strong: #D8D1BE;
  --border-d: #2E3B5A;
  --up: #C73E3E;
  --up-bg: #FDECEC;
  --down: #1B5BAA;
  --down-bg: #E9F0F8;
  --r-sm: 3px;
  --r-md: 4px;
  --container-max: 1200px;
  --container-pad: 40px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, 'Apple SD Gothic Neo', sans-serif;
  font-size: 15px; line-height: 1.65;
  color: var(--text); background: white;
  font-feature-settings: 'tnum';
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; padding: 0; }
a { color: inherit; text-decoration: none; }

.skip-link {
  position: absolute; top: -100px; left: 0;
  background: var(--navy); color: var(--ivory);
  padding: 12px 20px; z-index: 1000;
}
.skip-link:focus { top: 0; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

/* Header */
.site-header {
  background: var(--navy);
  border-bottom: 0.5px solid var(--border-d);
  position: sticky; top: 0; z-index: 100;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 40px; max-width: 1200px; margin: 0 auto;
  position: relative;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 34px; height: 34px;
  border: 0.5px solid var(--gold);
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--gold);
  font-weight: 700; font-size: 13px;
  font-family: 'Georgia', serif; font-style: italic;
}
.logo-text {
  font-size: 19px; font-weight: 700;
  letter-spacing: 0.2px; color: var(--ivory);
}
.header-meta {
  font-size: 12px; color: rgba(245,241,232,0.55);
  letter-spacing: 0.3px;
}
.header-meta strong { color: var(--ivory); font-weight: 500; margin-left: 6px; }
.main-nav { display: flex; gap: 36px; }
.main-nav a {
  font-size: 14px; font-weight: 500;
  color: rgba(245,241,232,0.7);
  padding: 8px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.main-nav a:hover { color: var(--ivory); }
.main-nav a.active { color: var(--ivory); border-bottom-color: var(--gold); }
.menu-toggle {
  display: none; font-size: 22px;
  color: var(--ivory); padding: 4px 8px; line-height: 1;
}

/* Hero */
.hero {
  background: var(--ivory);
  padding: 64px 0 72px;
  border-bottom: 0.5px solid var(--border);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 64px; align-items: center;
}
.hero-eyebrow {
  font-size: 12px; color: var(--text-2);
  letter-spacing: 1.5px; font-weight: 600;
  margin: 0 0 12px;
}
.hero-date {
  font-size: 13px; color: var(--text-2);
  margin: 0 0 32px;
  font-variant-numeric: tabular-nums;
}
.hero-price-label {
  font-size: 13px; color: var(--text-2);
  margin: 0 0 8px; font-weight: 500;
}
.hero-price-row {
  display: flex; align-items: baseline; gap: 18px;
  margin-bottom: 32px;
}
.hero-price {
  font-size: 68px; font-weight: 700;
  letter-spacing: -2.5px;
  color: var(--navy); line-height: 1;
  font-variant-numeric: tabular-nums;
  margin: 0;
}
.hero-chg { font-size: 18px; font-weight: 700; letter-spacing: -0.3px; }
.hero-chg.down { color: var(--down); }
.hero-chg.up { color: var(--up); }
.hero-stats {
  display: flex; gap: 36px;
  padding-top: 24px;
  border-top: 0.5px solid var(--border-strong);
}
.hero-stat-label {
  font-size: 12px; color: var(--text-2);
  margin: 0 0 5px; font-weight: 500;
}
.hero-stat-val {
  font-size: 19px; font-weight: 700;
  letter-spacing: -0.4px;
  font-variant-numeric: tabular-nums;
  color: var(--navy); margin: 0;
}
.hero-card {
  background: white; border-radius: var(--r-md);
  padding: 28px; border: 0.5px solid var(--border);
}
.hero-card-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 20px;
}
.hero-card-title {
  font-size: 11.5px; color: var(--text-2);
  font-weight: 600; margin: 0 0 8px; letter-spacing: 1px;
}
.hero-card-num {
  font-size: 24px; font-weight: 700;
  letter-spacing: -0.6px; color: var(--navy);
  font-variant-numeric: tabular-nums; margin: 0;
}
.hero-card-badge {
  display: inline-block;
  padding: 3px 10px; border-radius: var(--r-sm);
  font-size: 12px; font-weight: 700;
}
.hero-card-badge.down { background: var(--down-bg); color: var(--down); }
.hero-card-badge.up { background: var(--up-bg); color: var(--up); }
.hero-card-more {
  font-size: 12px; color: var(--gold-deep);
  font-weight: 600; margin-top: 16px;
  padding-top: 16px; border-top: 0.5px solid var(--border);
  display: block;
}
.hero-card-legend {
  display: flex; gap: 14px; margin-top: 12px;
  font-size: 11px; color: var(--text-2);
}
.hero-card-legend i {
  display: inline-block; width: 12px; height: 2px;
  vertical-align: middle; margin-right: 5px;
}

/* 광고 */
.ad-wrap { padding: 36px 0; }
.ad {
  background: var(--ivory-warm);
  border: 0.5px dashed var(--border-strong);
  border-radius: var(--r-sm);
  min-height: 100px;
  display: flex; align-items: center; justify-content: center;
  font-size: 11.5px; color: var(--text-3); letter-spacing: 0.5px;
}
.adsbygoogle { min-height: 100px; }

/* Section */
.section { padding: 64px 0; }
.section-alt {
  background: var(--ivory);
  border-top: 0.5px solid var(--border);
  border-bottom: 0.5px solid var(--border);
}
.section-dark { background: var(--navy); color: var(--ivory); }
.section-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 36px;
}
.eyebrow {
  font-size: 11.5px; color: var(--gold-deep);
  letter-spacing: 1.8px; font-weight: 600;
  margin: 0 0 10px;
}
.section-dark .eyebrow { color: var(--gold); }
.title {
  font-size: 30px; font-weight: 700;
  letter-spacing: -0.7px; margin: 0 0 8px;
  color: var(--navy); line-height: 1.2;
}
.section-dark .title { color: var(--ivory); }
.sub { font-size: 14px; color: var(--text-2); margin: 0; }
.section-dark .sub { color: rgba(245,241,232,0.6); }
.section-link {
  font-size: 13px; color: var(--gold-deep);
  font-weight: 600; white-space: nowrap;
}
.section-dark .section-link { color: var(--gold); }
.section-link:hover { color: var(--navy); }
.section-dark .section-link:hover { color: var(--ivory); }

/* 오늘의 시세 */
.metrics-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 0.5px solid var(--border);
  border-bottom: 0.5px solid var(--border);
}
.metric-card {
  padding: 30px 28px;
  border-right: 0.5px solid var(--border);
}
.metric-card:last-child { border-right: none; }
.metric-label {
  font-size: 12px; color: var(--text-2);
  margin: 0 0 20px; font-weight: 500; letter-spacing: 0.3px;
}
.metric-val {
  font-size: 28px; font-weight: 700;
  letter-spacing: -0.7px;
  margin: 0 0 10px; line-height: 1;
  font-variant-numeric: tabular-nums; color: var(--navy);
}
.metric-chg { font-size: 12.5px; font-weight: 700; }
.metric-chg.down { color: var(--down); }
.metric-chg.up { color: var(--up); }

/* 시세 추이 */
.trend-pills { display: flex; gap: 4px; margin-bottom: 28px; flex-wrap: wrap; }
.pill {
  font-size: 13px; padding: 9px 18px;
  border-radius: var(--r-sm);
  background: transparent;
  color: rgba(245,241,232,0.6);
  border: 0.5px solid rgba(245,241,232,0.2);
  font-weight: 500; transition: all 0.15s ease;
}
.pill:hover { color: var(--ivory); border-color: rgba(245,241,232,0.5); }
.pill.active {
  background: var(--ivory); color: var(--navy);
  border-color: var(--ivory); font-weight: 700;
}
.chart-wrap {
  background: var(--navy-alt);
  border-radius: var(--r-md);
  padding: 36px 36px 30px;
  border: 0.5px solid var(--border-d);
}
.chart-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 28px;
}
.chart-col-label {
  font-size: 11.5px; color: rgba(245,241,232,0.55);
  margin: 0 0 8px; font-weight: 500; letter-spacing: 0.5px;
}
.chart-col-num {
  font-size: 34px; font-weight: 700;
  letter-spacing: -1px; margin: 0 0 6px;
  color: var(--ivory); line-height: 1;
  font-variant-numeric: tabular-nums;
}
.chart-col-num.dim { color: rgba(245,241,232,0.4); }
.chart-col-date { font-size: 12px; color: rgba(245,241,232,0.5); margin: 0; }
.chart-col-pct {
  display: inline-block;
  padding: 4px 10px; border-radius: var(--r-sm);
  font-size: 12.5px; font-weight: 700;
  background: rgba(27,91,170,0.25); color: #8FB3DE;
  margin-bottom: 8px;
}
.chart-col-pct.up { background: rgba(199,62,62,0.25); color: #E8908E; }
#trend-chart { width: 100%; height: auto; aspect-ratio: 1000 / 260; }
.chart-legend {
  display: flex; gap: 24px; margin-top: 22px;
  font-size: 12px; color: rgba(245,241,232,0.6);
}
.chart-legend i {
  display: inline-block; width: 16px; height: 2px;
  vertical-align: middle; margin-right: 7px;
}

/* 거래소 */
.exchange-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.exchange-card {
  background: white; border: 0.5px solid var(--border);
  border-radius: var(--r-md); padding: 28px;
  transition: border-color 0.2s ease, transform 0.2s ease;
  display: block;
}
.exchange-card:hover { border-color: var(--gold); transform: translateY(-1px); }
.exchange-name {
  font-size: 16px; font-weight: 700;
  margin: 0 0 16px; letter-spacing: -0.3px;
  color: var(--navy);
}
.exchange-price-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 7px 0; font-size: 13.5px;
}
.exchange-price-label { color: var(--text-2); font-weight: 500; }
.exchange-price-val {
  font-weight: 700; font-variant-numeric: tabular-nums; color: var(--navy);
}
.exchange-cta {
  margin-top: 16px; padding-top: 16px;
  border-top: 0.5px solid var(--border);
  font-size: 12.5px; color: var(--gold-deep); font-weight: 600;
}
.exchange-disclaimer {
  font-size: 12px; color: var(--text-3);
  margin: 20px 0 0; line-height: 1.55;
}

/* 정의 2열 */
.define-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.define-block h3 {
  font-size: 17px; font-weight: 700;
  margin: 0 0 14px; letter-spacing: -0.3px;
  color: var(--navy);
  padding-bottom: 10px;
  border-bottom: 0.5px solid var(--border-strong);
}
.define-block p {
  font-size: 15px; line-height: 1.85;
  color: var(--text-2); margin: 0;
}

/* 활용 3열 */
.use-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.use-card {
  background: white; border-radius: var(--r-md);
  padding: 32px 28px; text-align: center;
  border: 0.5px solid var(--border);
  transition: transform 0.2s ease;
}
.use-card:hover { transform: translateY(-2px); }
.use-illust { width: 100%; max-width: 170px; height: auto; margin: 0 auto 20px; }
.use-title {
  font-size: 16px; font-weight: 700;
  margin: 0 0 8px; letter-spacing: -0.3px; color: var(--navy);
}
.use-desc {
  font-size: 13.5px; color: var(--text-2);
  line-height: 1.65; margin: 0;
}

/* FAQ */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; }
.faq-item {
  background: white; border: 0.5px solid var(--border);
  border-radius: var(--r-md); padding: 24px 26px;
  transition: border-color 0.2s ease;
}
.faq-item:hover { border-color: var(--gold); }
.faq-q {
  font-size: 15px; font-weight: 700;
  margin: 0 0 10px; letter-spacing: -0.2px; color: var(--navy);
}
.faq-a {
  font-size: 13.5px; line-height: 1.75;
  color: var(--text-2); margin: 0;
}

/* 시세표 */
.table-wrap { overflow-x: auto; }
.price-table {
  width: 100%; font-size: 14.5px;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}
.price-table th {
  text-align: left; font-weight: 600; font-size: 12.5px;
  color: var(--text-2); padding: 12px 8px;
  border-bottom: 0.5px solid var(--border-strong);
  letter-spacing: 0.3px;
}
.price-table th.num, .price-table td.num { text-align: right; }
.price-table td { padding: 14px 8px; border-bottom: 0.5px solid var(--border); }
.badge-up, .badge-down {
  display: inline-block;
  padding: 3px 9px; border-radius: var(--r-sm);
  font-size: 12px; font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.badge-up { background: var(--up-bg); color: var(--up); }
.badge-down { background: var(--down-bg); color: var(--down); }
.more-link {
  display: inline-block; margin-top: 16px;
  color: var(--gold-deep); font-size: 13px; font-weight: 600;
}
.more-link:hover { color: var(--navy); }

/* Footer */
.site-footer {
  background: var(--navy); color: var(--ivory);
  padding: 56px 0 32px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 44px; margin-bottom: 40px;
}
.footer-brand-block {
  font-size: 19px; font-weight: 700;
  letter-spacing: 0.2px; margin: 0 0 12px;
  color: var(--ivory);
}
.footer-brand-mark {
  color: var(--gold); font-family: 'Georgia', serif;
  font-style: italic; margin-right: 8px;
}
.footer-brand-desc {
  font-size: 13px; color: rgba(245,241,232,0.55);
  line-height: 1.75; margin: 0;
}
.footer-col-title {
  font-size: 11px; font-weight: 700;
  color: rgba(245,241,232,0.85);
  letter-spacing: 1.5px; margin: 0 0 16px;
}
.footer-col a {
  display: block; font-size: 13px;
  color: rgba(245,241,232,0.55);
  padding: 5px 0; transition: color 0.15s ease;
}
.footer-col a:hover { color: var(--ivory); }
.footer-bottom {
  padding-top: 24px;
  border-top: 0.5px solid var(--border-d);
  display: flex; justify-content: space-between;
  font-size: 11.5px; color: rgba(245,241,232,0.35);
  letter-spacing: 0.3px;
}

/* 서브 페이지 */
.page { padding: 56px 0 80px; max-width: 800px; margin: 0 auto; }
.page-title {
  font-size: 34px; font-weight: 700;
  letter-spacing: -0.8px; margin: 0 0 8px; color: var(--navy);
}
.page-subtitle { font-size: 14px; color: var(--text-3); margin: 0 0 40px; }
.page h2 {
  font-size: 20px; font-weight: 700;
  letter-spacing: -0.4px; margin: 40px 0 14px;
  color: var(--navy); padding-bottom: 10px;
  border-bottom: 0.5px solid var(--border-strong);
}
.page h3 {
  font-size: 16px; font-weight: 600;
  margin: 26px 0 8px; color: var(--navy);
}
.page p {
  font-size: 15px; line-height: 1.85;
  color: var(--text-2); margin: 0 0 14px;
}
.page ul, .page ol {
  font-size: 15px; line-height: 1.9;
  color: var(--text-2); padding-left: 24px;
  margin: 8px 0 18px;
}
.page li { margin-bottom: 6px; }
.page strong { color: var(--navy); font-weight: 700; }
.page hr {
  border: none; border-top: 0.5px solid var(--border);
  margin: 36px 0;
}
.page a { color: var(--gold-deep); border-bottom: 1px solid var(--border-strong); }
.page a:hover { color: var(--navy); }

/* 태블릿 */
@media (max-width: 960px) {
  :root { --container-pad: 28px; }
  .header-inner { padding: 18px 28px; }
  .main-nav { gap: 24px; }
  .main-nav a { font-size: 13px; }
  .header-meta { display: none; }

  .hero { padding: 48px 0 56px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-price { font-size: 56px; letter-spacing: -2px; }

  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .metric-card:nth-child(2) { border-right: none; }
  .metric-card:nth-child(1), .metric-card:nth-child(2) {
    border-bottom: 0.5px solid var(--border);
  }

  .exchange-grid { grid-template-columns: 1fr 1fr; }
  .use-grid { grid-template-columns: 1fr 1fr; }
  .faq-list { grid-template-columns: 1fr; }
  .define-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .chart-wrap { padding: 28px 24px 24px; }
}

/* 모바일 */
@media (max-width: 640px) {
  :root { --container-pad: 18px; }
  body { font-size: 14px; }

  .header-inner { padding: 14px 18px; }
  .logo-mark { width: 30px; height: 30px; font-size: 12px; }
  .logo-text { font-size: 16px; }
  .menu-toggle { display: block; }
  .main-nav {
    display: none; position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--navy);
    flex-direction: column; gap: 0;
    padding: 8px 18px 18px;
    border-bottom: 0.5px solid var(--border-d);
  }
  .main-nav.open { display: flex; }
  .main-nav a {
    padding: 12px 0;
    border-bottom: 0.5px solid rgba(245,241,232,0.1);
    font-size: 14px;
  }
  .main-nav a.active { border-bottom-color: var(--gold); }

  .hero { padding: 36px 0 44px; }
  .hero-price { font-size: 44px; letter-spacing: -1.5px; }
  .hero-chg { font-size: 15px; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .hero-stat-val { font-size: 16px; }

  .section { padding: 48px 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .title { font-size: 24px; }

  .metrics-grid { grid-template-columns: 1fr; }
  .metric-card {
    border-right: none; border-bottom: 0.5px solid var(--border);
    padding: 22px 20px;
    display: flex; justify-content: space-between; align-items: baseline;
  }
  .metric-card:last-child { border-bottom: none; }
  .metric-label { margin: 0; font-size: 13px; }
  .metric-val { font-size: 22px; margin: 0 auto 0 20px; }
  .metric-chg { min-width: 60px; text-align: right; }

  .chart-head { flex-direction: column; gap: 18px; }
  .chart-head > div:last-child { text-align: left; }
  .chart-col-num { font-size: 28px; }

  .exchange-grid { grid-template-columns: 1fr; }
  .use-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 8px; }

  .page { padding: 40px 0 56px; }
  .page-title { font-size: 26px; }
  .page h2 { font-size: 18px; }

  .price-table { font-size: 13px; }
  .price-table th, .price-table td { padding: 10px 4px; }
}

@media print {
  .ad-wrap, .ad, .site-header { display: none; }
  .site-footer { background: white; color: var(--navy); }
}