@tailwind base;
@tailwind components;
@tailwind utilities;

/* ══════════════════════════════════════════════════════════════
   PolyWeather — Unified Design Token System
   ══════════════════════════════════════════════════════════════ */

@layer base {
  :root {
    /* ── Background Scale ── */
    --color-bg-base: #0B1220;
    --color-bg-raised: #111A2E;
    --color-bg-overlay: #16213A;
    --color-bg-card: rgba(17, 26, 46, 0.88);
    --color-bg-input: rgba(22, 33, 58, 0.72);

    /* ── Text Scale ── */
    --color-text-primary: #E6EDF3;
    --color-text-secondary: #9FB2C7;
    --color-text-muted: #6B7A90;
    --color-text-disabled: #6B7A90;

    /* ── Accent Colors (Fintech 3-Color) ── */
    --color-accent-primary: #4DA3FF;
    --color-accent-secondary: #4DA3FF;
    --color-accent-tertiary: #93C5FD;

    /* ── Signal / Semantic Colors ── */
    --color-signal-success: #22C55E;
    --color-signal-warning: #F59E0B;
    --color-signal-danger: #EF4444;
    --color-signal-info: #4DA3FF;

    /* ── Risk Colors (aliased from signal) ── */
    --color-risk-high: var(--color-signal-danger);
    --color-risk-medium: var(--color-signal-warning);
    --color-risk-low: var(--color-signal-success);

    /* ── Border ── */
    --color-border-default: rgba(159, 178, 199, 0.16);
    --color-border-hover: rgba(77, 163, 255, 0.38);
    --color-border-subtle: rgba(159, 178, 199, 0.08);

    /* ── Shadow / Elevation ── */
    --shadow-elevation-1: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-elevation-2: 0 8px 24px rgba(0, 0, 0, 0.45);
    --shadow-elevation-3: 0 20px 60px rgba(0, 0, 0, 0.6);
    --shadow-glow-accent: 0 0 20px rgba(77, 163, 255, 0.24);
    --shadow-glow-secondary: 0 0 20px rgba(111, 183, 255, 0.22);

    /* ── Typography ── */
    --font-data:
      "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-display: "Geist", "Inter", -apple-system, sans-serif;
    --font-mono: "JetBrains Mono", "Fira Code", "SF Mono", monospace;

    /* ── Spacing (4px grid) ── */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;

    /* ── Border Radius ── */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* ── Glass / Blur ── */
    --glass-blur-1: blur(10px);
    --glass-blur-2: blur(16px);
    --glass-blur-3: blur(24px);
    --glass-opacity-1: 0.72;
    --glass-opacity-2: 0.85;
    --glass-opacity-3: 0.92;

    /* ── Layout ── */
    --header-height: 52px;
    --sidebar-width: 260px;
    --panel-width: 560px;

    /* ── Motion ── */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);

    /* ── Legacy Compatibility (shadcn/ui HSL tokens) ── */
    --background: 223 53% 4%;
    --foreground: 210 40% 98%;
    --card: 223 46% 8%;
    --card-foreground: 210 40% 98%;
    --primary: 159 100% 44%;
    --primary-foreground: 222 47% 8%;
    --secondary: 224 30% 14%;
    --secondary-foreground: 210 40% 98%;
    --accent: 217 30% 18%;
    --accent-foreground: 210 40% 98%;
    --border: 221 38% 22%;
  }

  * {
    @apply border-border;
  }

  body {
    font-family: var(--font-data);
    background:
      radial-gradient(
        circle at 10% -10%,
        rgba(0, 224, 164, 0.1),
        transparent 40%
      ),
      radial-gradient(
        circle at 90% 0%,
        rgba(123, 97, 255, 0.08),
        transparent 36%
      ),
      radial-gradient(
        circle at 80% 100%,
        rgba(0, 224, 164, 0.06),
        transparent 48%
      ),
      var(--color-bg-base);
    color: var(--color-text-primary);
  }
}

/* ══════════════════════════════════════════════════════════════
   Map Components (Leaflet overrides + map markers)
   ══════════════════════════════════════════════════════════════ */

@layer components {
  .leaflet-container {
    width: 100%;
    height: 100%;
    font-family: inherit;
  }

  .leaflet-control-zoom a {
    background: rgba(8, 12, 20, 0.85) !important;
    border-color: var(--color-border-default) !important;
    color: var(--color-text-primary) !important;
  }

  .leaflet-control-zoom a:hover {
    background: rgba(13, 19, 33, 0.95) !important;
    border-color: var(--color-border-hover) !important;
  }

  /* ── Map Pill (temperature labels on map) ── */
  .map-pill {
    min-width: 52px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 5px 10px;
    color: var(--color-text-primary);
    font-size: 11px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    line-height: 1;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    backdrop-filter: var(--glass-blur-1);
    box-shadow:
      0 2px 14px rgba(2, 6, 23, 0.45),
      inset 0 1px 0 rgba(255, 255, 255, 0.2);
  }

  .map-pill.high {
    background: linear-gradient(135deg, var(--color-signal-danger), #b91c1c);
  }

  .map-pill.medium {
    background: linear-gradient(135deg, var(--color-signal-warning), #b45309);
  }

  .map-pill.low {
    background: linear-gradient(135deg, #22C55E, #047857);
  }

  .map-pill.active {
    transform: translateY(-2px) scale(1.05);
    box-shadow:
      0 8px 24px rgba(0, 224, 164, 0.35),
      inset 0 1px 0 rgba(255, 255, 255, 0.35);
  }

  /* ── Glass utility ── */
  .glass {
    background: linear-gradient(
      180deg,
      rgba(13, 19, 33, 0.88) 0%,
      rgba(8, 12, 20, 0.75) 100%
    );
    backdrop-filter: var(--glass-blur-1);
  }

  /* ── Fade-up entrance ── */
  .fade-up {
    animation: fadeUp 400ms var(--transition-slow);
  }
}

@layer utilities {
  @keyframes fadeUp {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

/* ══════════════════════════════════════════════════════════════
   Map Marker Components (nearby stations, city bubbles)
   ══════════════════════════════════════════════════════════════ */

@layer components {
  .nearby-marker {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(13, 19, 33, 0.9);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-1) var(--space-3);
    font-size: 11px;
    font-weight: 600;
    box-shadow: var(--shadow-elevation-2);
    backdrop-filter: var(--glass-blur-1);
    white-space: nowrap;
  }

  .nearby-name {
    color: var(--color-text-secondary);
  }

  .nearby-temp {
    color: #fff;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
  }

  .nearby-unit {
    color: var(--color-text-muted);
    font-size: 9px;
  }

  .wind-info {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    margin-left: var(--space-1);
    padding-left: var(--space-2);
    border-left: 1px solid var(--color-border-subtle);
    color: var(--color-accent-primary);
    font-size: 10px;
    opacity: 0.9;
  }

  .wind-arrow {
    display: inline-block;
    transform-origin: center;
  }

  /* ── City Marker (bubble on map) ── */
  .city-marker {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
  }

  .marker-bubble {
    position: relative;
    min-width: 46px;
    padding: 5px 10px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    text-align: center;
    color: white;
    border: 1px solid transparent;
    box-shadow: var(--shadow-elevation-2);
  }

  .marker-bubble::after {
    content: "";
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid transparent;
  }

  .marker-bubble.risk-high {
    background: linear-gradient(135deg, #dc2626, var(--color-signal-danger));
    border-color: rgba(239, 68, 68, 0.5);
  }

  .marker-bubble.risk-high::after {
    border-top-color: var(--color-signal-danger);
  }

  .marker-bubble.risk-medium {
    background: linear-gradient(135deg, #d97706, var(--color-signal-warning));
    border-color: rgba(245, 158, 11, 0.5);
  }

  .marker-bubble.risk-medium::after {
    border-top-color: var(--color-signal-warning);
  }

  .marker-bubble.risk-low {
    background: linear-gradient(135deg, #059669, #22C55E);
    border-color: rgba(16, 185, 129, 0.5);
  }

  .marker-bubble.risk-low::after {
    border-top-color: #22C55E;
  }

  .marker-name {
    margin-top: var(--space-2);
    font-size: 10px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.88);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
  }

  .city-marker.selected .marker-bubble {
    animation: markerGlow 2s ease-in-out infinite;
  }

  /* ── Scrollbar ── */
  .custom-scrollbar::-webkit-scrollbar {
    width: 6px;
  }
  .custom-scrollbar::-webkit-scrollbar-thumb {
    background: rgba(123, 97, 255, 0.2);
    border-radius: var(--radius-full);
  }
  .custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: rgba(123, 97, 255, 0.35);
  }
}

@keyframes markerGlow {
  0%,
  100% {
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
  }
  50% {
    box-shadow: 0 10px 26px rgba(0, 224, 164, 0.3);
  }
}