/* ======================================================================
   FM INDEX — 시장심리 대시보드
   Light-first theme. Dark theme via [data-theme="dark"].
   상승·하락 색상은 --up/--down 변수로 제어 (한국식/미국식/사용자 지정).
   ====================================================================== */

/* ---------------- Light theme (default) ---------------- */
:root,
[data-theme="light"] {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #fafbfc;
  --border: #e3e6ea;
  --border-strong: #cfd4db;
  --text: #1b1f27;
  --text-2: #4b5361;
  --muted: #7a8290;
  --nav-bg: #2f5fd0;
  --nav-text: #ffffff;
  --nav-muted: rgba(255, 255, 255, 0.78);
  --accent: #2f5fd0;
  --accent-soft: #e8effc;

  /* FM Index 고유 고정색 (상승/하락과 혼동 금지) */
  --fm: #6a4dff;
  --fm-soft: rgba(106, 77, 255, 0.10);

  /* 시장 정규화 지수 */
  --market: #e8930c;
  --market-soft: rgba(232, 147, 12, 0.12);

  /* 상승·하락 (기본값: 한국식) */
  --up: #e53935;
  --up-soft: rgba(229, 57, 53, 0.10);
  --down: #1e63c7;
  --down-soft: rgba(30, 99, 199, 0.10);
  --flat: #7a8290;

  --shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 1px 3px rgba(16, 24, 40, 0.06);
  --radius: 10px;
  --radius-sm: 6px;
  --focus: 2px solid #1a4fb8;
}

/* ---------------- Dark theme ---------------- */
[data-theme="dark"] {
  --bg: #12141b;
  --surface: #1b1e28;
  --surface-2: #20242f;
  --border: #2c3140;
  --border-strong: #3a4052;
  --text: #e8eaf0;
  --text-2: #b6bcc9;
  --muted: #8b93a3;
  --nav-bg: #223c80;
  --nav-text: #ffffff;
  --nav-muted: rgba(255, 255, 255, 0.72);
  --accent: #7fa1e8;
  --accent-soft: rgba(127, 161, 232, 0.16);

  --fm: #9b84ff;
  --fm-soft: rgba(155, 132, 255, 0.14);

  --market: #f0a92e;
  --market-soft: rgba(240, 169, 46, 0.14);

  --up: #ff6b66;
  --up-soft: rgba(255, 107, 102, 0.14);
  --down: #6b9ef0;
  --down-soft: rgba(107, 158, 240, 0.14);
  --flat: #8b93a3;

  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
  --focus: 2px solid #8fb1f2;
}

/* ---------------- Base ---------------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Malgun Gothic', 'Apple SD Gothic Neo', 'Segoe UI', 'Noto Sans KR', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  transition: background-color 0.2s ease, color 0.2s ease;
}

button, select, input { font-family: inherit; font-size: inherit; color: inherit; }

:focus-visible {
  outline: var(--focus);
  outline-offset: 2px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 8px 14px;
  z-index: 100;
}
.skip-link:focus { left: 8px; top: 8px; }

.is-hidden { display: none !important; }

/* ---------------- Top navigation ---------------- */
.topnav {
  background: var(--nav-bg);
  color: var(--nav-text);
  position: sticky;
  top: 0;
  z-index: 40;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
}
.topnav-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 16px;
  height: 52px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  letter-spacing: 0.04em;
  font-size: 17px;
  white-space: nowrap;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: #ffffff;
  color: var(--nav-bg);
  font-size: 13px;
  font-weight: 900;
}
.tabs {
  display: flex;
  gap: 2px;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  background: transparent;
  border: none;
  color: var(--nav-muted);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.tab:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }
.tab.is-active { background: rgba(255, 255, 255, 0.18); color: #fff; }
.topnav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.icon-btn {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #fff;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s ease;
}
.icon-btn:hover { background: rgba(255, 255, 255, 0.26); }

/* ---------------- Badges ---------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid transparent;
}
.badge-sample {
  background: #fff4e0;
  color: #8a5a00;
  border-color: #f2c46d;
}
[data-theme="dark"] .badge-sample {
  background: #3a2f12;
  color: #ffd166;
  border-color: #6b5520;
}
.badge-unavailable {
  background: var(--surface-2);
  color: var(--muted);
  border-color: var(--border);
}

/* ---------------- Layout ---------------- */
main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px;
}
.section { display: none; }
.section.is-active { display: block; }
.section-title { font-size: 20px; margin: 8px 0 14px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card-title { font-size: 15px; font-weight: 700; margin-bottom: 8px; }

/* ---------------- Hero: 현재 지수 ---------------- */
.hero-grid {
  display: grid;
  grid-template-columns: minmax(240px, 300px) 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
.index-hero {
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-top: 3px solid var(--fm);
}
.index-hero-label { font-size: 13px; color: var(--muted); font-weight: 600; }
.index-hero-value {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.index-hero-sentiment { font-size: 15px; font-weight: 700; }
.index-hero-sentiment.up { color: var(--up); }
.index-hero-sentiment.down { color: var(--down); }
.index-hero-sentiment.flat { color: var(--flat); }
.index-hero-sub { font-size: 12.5px; color: var(--muted); }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}
.stat { padding: 14px 16px; }
.stat-label { font-size: 11.5px; color: var(--muted); margin-bottom: 4px; font-weight: 600; }
.stat-value { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-sub { font-size: 11.5px; color: var(--muted); margin-top: 2px; }

/* ---------------- Control bar ---------------- */
.control-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: center;
  padding: 10px 14px;
  margin-bottom: 12px;
}
.control-group {
  display: flex;
  gap: 4px;
  align-items: center;
  flex-wrap: wrap;
}
.pill {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-2);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}
.pill:hover { border-color: var(--border-strong); color: var(--text); }
.pill.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ---------------- Chart ---------------- */
.chart-card { padding: 14px 16px 10px; margin-bottom: 12px; }
.chart-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
.chart-title { font-size: 15px; font-weight: 700; }
.chart-legend { display: flex; gap: 14px; font-size: 12px; color: var(--muted); }
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.legend-dot.fm { background: var(--fm); }
.legend-dot.market { background: var(--market); }
.chart-wrap { position: relative; height: 320px; }
.chart-wrap canvas { max-height: 320px; }

.view-notice {
  margin-top: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--text-2);
  font-size: 12.5px;
}

/* ---------------- Direction match cards ---------------- */
.match-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}
.match-card { padding: 14px 16px; }
.match-label { font-size: 12px; color: var(--muted); font-weight: 600; margin-bottom: 6px; }
.match-value { font-size: 24px; font-weight: 800; font-variant-numeric: tabular-nums; }
.match-sub { font-size: 11.5px; color: var(--muted); margin-top: 4px; }

/* ---------------- Session panel (야간/주간) ---------------- */
.session-panel { padding: 16px 18px; margin-bottom: 12px; }
.session-title { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.session-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
}
.session-cell { padding: 10px 12px; background: var(--surface-2); border-radius: var(--radius-sm); border: 1px solid var(--border); }
.session-cell-label { font-size: 11px; color: var(--muted); margin-bottom: 3px; }
.session-cell-value { font-size: 15px; font-weight: 700; }
.session-note {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px dashed var(--border-strong);
  color: var(--text-2);
  font-size: 12.5px;
}

/* ---------------- 해석 ---------------- */
.interpretation { padding: 16px 18px; margin-bottom: 12px; }
.interpretation-text { font-size: 14px; color: var(--text-2); line-height: 1.7; }

/* ---------------- Bottom blocks ---------------- */
.bottom-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.bottom-block { padding: 16px 18px; }
.empty-state { font-size: 13px; color: var(--muted); line-height: 1.7; }

.status-list { display: flex; flex-direction: column; }
.status-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.status-row:last-child { border-bottom: none; }
.status-row dt { color: var(--muted); }
.status-row dd { font-weight: 600; text-align: right; word-break: break-all; }

/* ---------------- Settings panel ---------------- */
.settings-panel {
  position: fixed;
  top: 60px;
  right: 12px;
  width: 320px;
  max-width: calc(100vw - 24px);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: 0 8px 28px rgba(16, 24, 40, 0.18);
  padding: 16px;
  z-index: 50;
}
.settings-title { font-size: 15px; font-weight: 700; margin-bottom: 12px; }
.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 13px;
}
.setting-row label { color: var(--text-2); }
.setting-row select, .setting-row input[type="color"] {
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
}
.setting-row input[type="color"] { width: 40px; height: 28px; padding: 2px; cursor: pointer; }
.settings-note { font-size: 11.5px; color: var(--muted); margin-top: 6px; }

/* ---------------- Methodology / content ---------------- */
.content-card { padding: 18px 20px; max-width: 860px; }
.method-text { font-size: 14px; color: var(--text-2); margin-bottom: 8px; }
.method-text code {
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 13px;
}
.method-list { padding-left: 18px; font-size: 13px; color: var(--text-2); margin-bottom: 14px; }
.method-list li { margin-bottom: 4px; }

/* ---------------- Footer ---------------- */
.footer {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 16px 28px;
  color: var(--muted);
  font-size: 12px;
  border-top: 1px solid var(--border);
}

/* ---------------- Responsive ---------------- */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .bottom-grid { grid-template-columns: 1fr; }
  .brand-text { display: none; }
}

@media (max-width: 640px) {
  main { padding: 10px; }
  .index-hero-value { font-size: 42px; }
  .chart-wrap { height: 260px; }
  .chart-wrap canvas { max-height: 260px; }
  .control-bar { gap: 8px 12px; }
  .topnav-inner { gap: 10px; padding: 0 10px; }
  .tab { padding: 6px 10px; font-size: 13px; }
}

@media (max-width: 400px) {
  .index-hero-value { font-size: 38px; }
  .chart-wrap { height: 230px; }
  .chart-wrap canvas { max-height: 230px; }
  .chart-legend { font-size: 11px; }
  .hero-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .match-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------------- Motion preference ---------------- */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ======================================================================
   Integrated additions (from remote PR #7): chart-status, session-strip,
   mobile bottom navigation, safe-area padding.
   skip-link and focus-visible already exist above.
   ====================================================================== */

/* ---------------- Chart status (aria-live) ---------------- */
.chart-status {
  min-height: 18px;
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
}

/* ---------------- Session strip (market time zones) ---------------- */
.session-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--border);
  font-size: 11.5px;
  color: var(--muted);
}

/* ---------------- Mobile bottom navigation ---------------- */
.mobile-nav {
  display: none;
}
.mobile-nav button {
  background: transparent;
  border: none;
  color: var(--nav-muted);
  padding: 10px 4px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
}
.mobile-nav button.is-active {
  color: #fff;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 8px;
}

@media (max-width: 640px) {
  .mobile-nav {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 45;
    background: var(--nav-bg);
    border-top: 1px solid var(--border-strong);
    padding-bottom: env(safe-area-inset-bottom);
  }
  /* 본문 마지막 영역이 하단 내비게이션에 가려지지 않도록 여백 */
  body {
    padding-bottom: calc(76px + env(safe-area-inset-bottom));
  }
}