:root {
  color-scheme: dark;

  --bg: #0f0f1a;
  --card-bg: #1a1a2e;
  --card-border: #2a2a4a;
  --text-primary: #ffffff;
  --text-secondary: #a8b2d1;
  --text-tertiary: #8892b0;
  --text-footer: #555555;

  --accent: #64ffda;
  --accent-contrast: #0f0f1a;

  --header-grad-1: #1a1a2e;
  --header-grad-2: #16213e;

  --risk-high-bg: #1a0a0a;
  --risk-high-border: #ff4444;
  --risk-medium-bg: #1a1200;
  --risk-medium-border: #ffaa00;
  --risk-low-bg: #0a1a0a;
  --risk-low-border: #44ff44;

  --table-header-bg: #1a1a2e;
  --row-border: #2a2a4a;
  --row-hover-bg: #1a1a2e;

  --disclaimer-bg: #1a1a2e;
  --disclaimer-border: #3a1a1a;
  --disclaimer-text: #666666;

  --mag4-bg: #2a4a2a; --mag4-text: #88ff88;
  --mag5-bg: #4a4a2a; --mag5-text: #ffff88;
  --mag6-bg: #4a2a2a; --mag6-text: #ff8888;
  --mag7-bg: #4a0a0a; --mag7-text: #ff4444;

  --map-border: #2a2a4a;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #f4f5fa;
    --card-bg: #ffffff;
    --card-border: #dde1ee;
    --text-primary: #14172b;
    --text-secondary: #454b63;
    --text-tertiary: #6b7189;
    --text-footer: #8a8fa3;

    --accent: #0a9c85;
    --accent-contrast: #ffffff;

    --header-grad-1: #eef1fb;
    --header-grad-2: #e2e7f7;

    --risk-high-bg: #fdeceb;
    --risk-high-border: #e33e3e;
    --risk-medium-bg: #fdf3e0;
    --risk-medium-border: #d68f00;
    --risk-low-bg: #eaf7ea;
    --risk-low-border: #2e9e2e;

    --table-header-bg: #f0f2fa;
    --row-border: #e4e7f2;
    --row-hover-bg: #f4f6fc;

    --disclaimer-bg: #fbeeee;
    --disclaimer-border: #e8c8c8;
    --disclaimer-text: #7a5a5a;

    --mag4-bg: #d7f5d7; --mag4-text: #1a6b1a;
    --mag5-bg: #fff2b8; --mag5-text: #7a5c00;
    --mag6-bg: #ffd9d9; --mag6-text: #8a1a1a;
    --mag7-bg: #ffb3b3; --mag7-text: #6b0000;

    --map-border: #dde1ee;
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f5fa;
  --card-bg: #ffffff;
  --card-border: #dde1ee;
  --text-primary: #14172b;
  --text-secondary: #454b63;
  --text-tertiary: #6b7189;
  --text-footer: #8a8fa3;

  --accent: #0a9c85;
  --accent-contrast: #ffffff;

  --header-grad-1: #eef1fb;
  --header-grad-2: #e2e7f7;

  --risk-high-bg: #fdeceb;
  --risk-high-border: #e33e3e;
  --risk-medium-bg: #fdf3e0;
  --risk-medium-border: #d68f00;
  --risk-low-bg: #eaf7ea;
  --risk-low-border: #2e9e2e;

  --table-header-bg: #f0f2fa;
  --row-border: #e4e7f2;
  --row-hover-bg: #f4f6fc;

  --disclaimer-bg: #fbeeee;
  --disclaimer-border: #e8c8c8;
  --disclaimer-text: #7a5a5a;

  --mag4-bg: #d7f5d7; --mag4-text: #1a6b1a;
  --mag5-bg: #fff2b8; --mag5-text: #7a5c00;
  --mag6-bg: #ffd9d9; --mag6-text: #8a1a1a;
  --mag7-bg: #ffb3b3; --mag7-text: #6b0000;

  --map-border: #dde1ee;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f0f1a;
  --card-bg: #1a1a2e;
  --card-border: #2a2a4a;
  --text-primary: #ffffff;
  --text-secondary: #a8b2d1;
  --text-tertiary: #8892b0;
  --text-footer: #555555;

  --accent: #64ffda;
  --accent-contrast: #0f0f1a;

  --header-grad-1: #1a1a2e;
  --header-grad-2: #16213e;

  --risk-high-bg: #1a0a0a;
  --risk-high-border: #ff4444;
  --risk-medium-bg: #1a1200;
  --risk-medium-border: #ffaa00;
  --risk-low-bg: #0a1a0a;
  --risk-low-border: #44ff44;

  --table-header-bg: #1a1a2e;
  --row-border: #2a2a4a;
  --row-hover-bg: #1a1a2e;

  --disclaimer-bg: #1a1a2e;
  --disclaimer-border: #3a1a1a;
  --disclaimer-text: #666666;

  --mag4-bg: #2a4a2a; --mag4-text: #88ff88;
  --mag5-bg: #4a4a2a; --mag5-text: #ffff88;
  --mag6-bg: #4a2a2a; --mag6-text: #ff8888;
  --mag7-bg: #4a0a0a; --mag7-text: #ff4444;

  --map-border: #2a2a4a;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text-secondary);
  margin: 0;
  padding: 0;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.container { max-width: 1000px; margin: 0 auto; padding: 20px; }

.header {
  position: relative;
  background: linear-gradient(135deg, var(--header-grad-1) 0%, var(--header-grad-2) 100%);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  margin-bottom: 24px;
  border: 1px solid var(--card-border);
}
.header h1 { margin: 0 0 8px 0; font-size: 28px; color: var(--text-primary); }
.header p { margin: 0; color: var(--text-tertiary); font-size: 14px; }
.header .live-dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: #44ff44; margin-right: 6px; box-shadow: 0 0 6px #44ff44;
}
.header .attribution { margin-top: 10px; font-size: 12px; }
.header .attribution a { color: var(--accent); text-decoration: none; }
.header .attribution a:hover { text-decoration: underline; }

.theme-toggle {
  position: absolute; top: 16px; right: 16px;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--card-bg); border: 1px solid var(--card-border);
  color: var(--text-primary); font-size: 16px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.theme-toggle:hover { border-color: var(--accent); }

.install-banner {
  display: none;
  background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 8px;
  padding: 12px 16px; margin-bottom: 20px; font-size: 13px; color: var(--text-secondary);
  align-items: center; justify-content: space-between; gap: 12px;
}
.install-banner.visible { display: flex; }
.install-banner button {
  background: var(--accent); color: var(--accent-contrast); border: none; border-radius: 6px;
  padding: 8px 14px; font-weight: bold; font-size: 13px; cursor: pointer;
}

.stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px; margin-bottom: 24px;
}
.stat-card {
  background: var(--card-bg); padding: 16px; border-radius: 8px; text-align: center;
  border: 1px solid var(--card-border);
}
.stat-value { font-size: 24px; font-weight: bold; color: var(--accent); }
.stat-label { font-size: 12px; color: var(--text-tertiary); margin-top: 4px; }

.section-title {
  font-size: 20px; color: var(--text-primary); margin: 32px 0 16px 0;
  padding-bottom: 8px; border-bottom: 2px solid var(--card-border);
  display: flex; align-items: center; justify-content: space-between;
}
.section-title small { font-size: 12px; color: var(--text-tertiary); font-weight: normal; }

.risk-zone {
  border-radius: 10px; padding: 20px; margin-bottom: 16px; border-left: 4px solid;
}
.risk-high { background: var(--risk-high-bg); border-color: var(--risk-high-border); }
.risk-medium { background: var(--risk-medium-bg); border-color: var(--risk-medium-border); }
.risk-low { background: var(--risk-low-bg); border-color: var(--risk-low-border); }
.risk-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; flex-wrap: wrap; gap: 8px; }
.risk-region { font-size: 18px; font-weight: 600; color: var(--text-primary); }
.risk-badge { padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: bold; text-transform: uppercase; }
.badge-high { background: #ff4444; color: #fff; }
.badge-medium { background: #ffaa00; color: #000; }
.badge-low { background: #44ff44; color: #000; }
.risk-meta { display: flex; gap: 16px; margin-bottom: 12px; flex-wrap: wrap; }
.meta-item { font-size: 13px; color: var(--text-secondary); }
.meta-item strong { color: var(--text-primary); }
.risk-reasoning { font-size: 14px; line-height: 1.6; color: var(--text-secondary); margin-bottom: 12px; }
.data-points { list-style: none; padding: 0; margin: 0; }
.data-points li { font-size: 12px; color: var(--text-tertiary); padding: 4px 0; border-bottom: 1px solid var(--row-border); }
.data-points li:last-child { border-bottom: none; }
.map-link { color: var(--accent); }

.summary {
  background: var(--card-bg); padding: 20px; border-radius: 8px; margin: 24px 0;
  border: 1px solid var(--card-border); font-size: 14px; line-height: 1.6; color: var(--text-secondary);
}
.summary strong { color: var(--text-primary); }

#map {
  height: 420px; border-radius: 8px; border: 1px solid var(--map-border); margin-top: 12px;
  background: var(--card-bg);
}
.plate-label-icon { background: transparent; border: none; }
.plate-label {
  display: inline-block; transform: translate(-50%, -50%);
  font-size: 11px; font-weight: 700; letter-spacing: 0.4px; text-transform: uppercase;
  white-space: nowrap; color: var(--text-secondary); pointer-events: none;
  text-shadow:
    -1px -1px 0 var(--bg), 1px -1px 0 var(--bg),
    -1px 1px 0 var(--bg), 1px 1px 0 var(--bg);
}
.hide-plate-labels .plate-label-icon { display: none; }
.map-hint { font-size: 11px; color: var(--text-tertiary); margin-top: 6px; }
.map-legend { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 10px; font-size: 12px; color: var(--text-tertiary); }
.map-legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.legend-swatch { width: 16px; height: 3px; display: inline-block; border-radius: 2px; }

.quakes-select {
  width: 100%; padding: 10px 12px; margin-top: 12px; font-size: 13px;
  background: var(--card-bg); color: var(--text-secondary);
  border: 1px solid var(--card-border); border-radius: 8px;
}
.quake-detail {
  margin-top: 12px; padding: 14px 16px; background: var(--card-bg);
  border: 1px solid var(--card-border); border-radius: 8px; font-size: 13px; color: var(--text-secondary);
}
.quake-detail a { color: var(--accent); text-decoration: none; }
.quake-detail strong { color: var(--text-primary); }

.mag-badge { padding: 2px 8px; border-radius: 4px; font-weight: bold; font-size: 12px; }
.mag-4 { background: var(--mag4-bg); color: var(--mag4-text); }
.mag-5 { background: var(--mag5-bg); color: var(--mag5-text); }
.mag-6 { background: var(--mag6-bg); color: var(--mag6-text); }
.mag-7 { background: var(--mag7-bg); color: var(--mag7-text); }

.pred-bar-card {
  background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 8px;
  padding: 18px; margin: 20px 0;
}
.pred-bar-title { font-size: 13px; color: var(--text-tertiary); margin-bottom: 12px; }
.pred-bar-track {
  height: 26px; background: var(--bg); border-radius: 13px; overflow: hidden; display: flex;
}
.pred-bar-segment {
  height: 100%; display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; transition: width 0.4s ease;
}
.pred-bar-legend { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 12px; font-size: 12px; color: var(--text-tertiary); }
.pred-bar-legend .legend-item { display: inline-flex; align-items: center; gap: 6px; }

.pred-confidence-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 20px;
}
.pred-conf-card { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 8px; padding: 14px; }
.pred-conf-title { font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 10px; }
.pred-conf-stats { display: flex; justify-content: space-between; }
.pred-conf-stat { text-align: center; }
.pred-conf-stat-value { font-size: 20px; font-weight: 700; }
.pred-conf-stat-label { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }

.pred-table-card { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 8px; overflow: hidden; }
.pred-filter-row { display: flex; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--card-border); overflow-x: auto; }
.pred-filter-btn {
  padding: 6px 14px; border-radius: 20px; border: 1px solid var(--card-border); background: transparent;
  color: var(--text-tertiary); font-size: 12px; cursor: pointer; white-space: nowrap;
}
.pred-filter-btn.active, .pred-filter-btn:hover { background: var(--accent); color: var(--accent-contrast); border-color: var(--accent); }
.pred-list { max-height: 420px; overflow-y: auto; overflow-x: auto; }
.pred-row {
  display: grid; grid-template-columns: 84px 1fr 90px 80px 56px; gap: 10px; min-width: 480px;
  padding: 12px 16px; border-bottom: 1px solid var(--row-border); align-items: center;
  font-size: 13px; cursor: pointer; color: var(--text-secondary);
}
.pred-row:last-child { border-bottom: none; }
.pred-row:hover { background: var(--row-hover-bg); }
.pred-region-name { font-weight: 600; color: var(--text-primary); }
.pred-region-coords { font-size: 11px; color: var(--text-tertiary); }
.pred-status-badge {
  display: inline-block; padding: 3px 8px; border-radius: 10px; font-size: 10px;
  font-weight: 700; text-transform: uppercase; text-align: center;
}
.pred-status-hit { background: rgba(68,255,68,0.15); color: #2fa62f; border: 1px solid rgba(68,255,68,0.4); }
.pred-status-miss { background: rgba(255,68,68,0.15); color: #d13a3a; border: 1px solid rgba(255,68,68,0.4); }
.pred-status-partial { background: rgba(255,170,0,0.15); color: #b87700; border: 1px solid rgba(255,170,0,0.4); }
.pred-status-pending { background: rgba(10,156,133,0.12); color: var(--accent); border: 1px solid rgba(10,156,133,0.35); }

.pred-modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.65); display: none;
  align-items: center; justify-content: center; z-index: 1000; padding: 20px;
}
.pred-modal.show { display: flex; }
.pred-modal-content {
  background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 12px;
  padding: 24px; max-width: 480px; width: 100%; max-height: 80vh; overflow-y: auto; position: relative;
}
.pred-modal-close {
  position: absolute; top: 10px; right: 14px; background: none; border: none;
  color: var(--text-tertiary); font-size: 22px; line-height: 1; cursor: pointer;
}
.pred-detail-title { font-size: 18px; font-weight: 600; color: var(--text-primary); margin-bottom: 16px; padding-right: 20px; }
.pred-detail-field { margin-bottom: 12px; }
.pred-detail-label { font-size: 11px; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 3px; }
.pred-detail-value { font-size: 14px; color: var(--text-primary); }
.pred-detail-reasoning {
  background: var(--bg); padding: 12px; border-radius: 8px; font-size: 13px;
  line-height: 1.5; color: var(--text-secondary); margin-top: 6px;
}

.alert-auth-card, .alert-zone-card {
  background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 8px;
  padding: 18px; margin-bottom: 16px;
}

.auth-locked-msg { font-size: 13px; color: var(--text-secondary); margin-bottom: 12px; line-height: 1.5; }
.auth-input {
  padding: 10px 12px; font-size: 13px; background: var(--bg); color: var(--text-primary);
  border: 1px solid var(--card-border); border-radius: 6px; width: 100%;
}
.auth-google-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 10px 16px; border-radius: 6px; border: 1px solid var(--card-border);
  background: var(--card-bg); color: var(--text-primary); font-weight: 600; font-size: 13px;
  cursor: pointer; max-width: 320px;
}
.auth-google-btn:hover { border-color: var(--accent); }
.auth-google-btn:disabled { opacity: 0.6; cursor: default; }
.auth-error { color: #e05555; font-size: 12px; margin-top: 2px; }
.auth-status { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.auth-status-email { font-size: 14px; color: var(--text-primary); font-weight: 600; }
.auth-signout-btn {
  padding: 6px 14px; border-radius: 6px; border: 1px solid var(--card-border); background: transparent;
  color: var(--text-tertiary); font-size: 12px; cursor: pointer;
}

.alert-zone-controls { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.alert-zone-hint { font-size: 12px; color: var(--text-tertiary); margin-bottom: 14px; }
.alert-zone-list-title { font-size: 14px; color: var(--text-primary); font-weight: 600; margin: 18px 0 10px 0; }

.premium-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin: 16px 0 28px 0;
}
.premium-card {
  background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 10px;
  padding: 18px; display: flex; flex-direction: column; gap: 6px; opacity: 0.7;
}
.premium-card-live { opacity: 1; border-color: var(--accent); }
.premium-card-icon { font-size: 26px; }
.premium-card-title { font-weight: 700; color: var(--text-primary); font-size: 14px; }
.premium-card-desc { font-size: 12px; color: var(--text-tertiary); line-height: 1.4; flex: 1; }
.premium-card-status { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.4px; margin-top: 4px; }
.status-live { color: #2fa62f; }
.status-soon { color: var(--text-tertiary); }

.alert-zone-form {
  background: var(--bg); border: 1px solid var(--card-border); border-radius: 8px;
  padding: 16px; margin-bottom: 16px; display: flex; flex-direction: column; gap: 10px;
}
.alert-zone-form-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.alert-zone-form label { font-size: 12px; color: var(--text-tertiary); display: flex; align-items: center; gap: 6px; }
.alert-zone-form-actions { display: flex; gap: 8px; margin-top: 4px; }
.alert-zone-save-btn {
  padding: 8px 16px; border-radius: 6px; border: none; background: var(--accent);
  color: var(--accent-contrast); font-weight: 600; font-size: 13px; cursor: pointer;
}
.alert-zone-discard-btn {
  padding: 8px 16px; border-radius: 6px; border: 1px solid var(--card-border); background: transparent;
  color: var(--text-tertiary); font-size: 13px; cursor: pointer;
}

.alert-zone-item {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 14px; border: 1px solid var(--card-border); border-radius: 8px; margin-bottom: 10px;
}
.alert-zone-item-name { font-weight: 600; color: var(--text-primary); font-size: 14px; }
.alert-zone-item-meta { font-size: 12px; color: var(--text-tertiary); margin-top: 2px; }
.alert-zone-item-channels { font-size: 16px; }
.alert-zone-delete-btn {
  background: none; border: none; color: #e05555; font-size: 18px; cursor: pointer; padding: 4px 8px;
}

.disclaimer {
  background: var(--disclaimer-bg); padding: 20px; border-radius: 8px; margin-top: 32px;
  border: 1px solid var(--disclaimer-border); font-size: 12px; color: var(--disclaimer-text); line-height: 1.5;
}
.footer { text-align: center; padding: 20px; color: var(--text-footer); font-size: 12px; margin-top: 20px; }
.footer a { color: var(--accent); text-decoration: none; }

.loading-msg, .error-msg, .empty-msg {
  font-size: 13px; color: var(--text-tertiary); padding: 12px 0;
}
.error-msg { color: #e05555; }