@import 'tailwindcss';

@custom-variant dark (&:where(.dark, .dark *));

/*
  InternetPressure.io — an instrument, not a website.
  Near-black planes, hairline rules, tabular numerals. Colour is reserved for the pressure scale.
*/
:root {
  color-scheme: dark;
  --bg: #070a0f;
  --panel: #0c1117;
  --panel-2: #10161e;
  --line: #1b2430;
  --line-2: #243040;
  --ink: #e6edf3;
  --ink-2: #8b98a5;
  --ink-3: #5b6875;
  --accent: #5b8def;
  --accent-soft: rgba(91, 141, 239, 0.14);
  --neutral: #0f151d;

  --p-calm: #4cc9f0;
  --p-normal: #7fb77e;
  --p-elevated: #e9c46a;
  --p-stressed: #f4a261;
  --p-high: #e76f51;
  --p-severe: #d62828;
  --p-extreme: #f72585;

  --ok: #7fb77e;
  --warn: #e9c46a;
  --bad: #e76f51;

  --radius: 4px;
  --header-h: 52px;
}

/* Graceful light fallback only when the OS asks for it AND the dark class is absent (dark is forced by default). */
@media (prefers-color-scheme: light) {
  :root:not(.dark) {
    color-scheme: light;
    --bg: #f5f7fa;
    --panel: #ffffff;
    --panel-2: #eef2f6;
    --line: #d5dce4;
    --line-2: #c2ccd7;
    --ink: #0c1117;
    --ink-2: #4d5a68;
    --ink-3: #7b8794;
    --neutral: #e3e8ee;
  }
}

@theme inline {
  --color-bg: var(--bg);
  --color-panel: var(--panel);
  --color-panel-2: var(--panel-2);
  --color-line: var(--line);
  --color-line-2: var(--line-2);
  --color-ink: var(--ink);
  --color-ink-2: var(--ink-2);
  --color-ink-3: var(--ink-3);
  --color-accent: var(--accent);
  --color-accent-soft: var(--accent-soft);
  --color-neutral: var(--neutral);
  --color-ok: var(--ok);
  --color-warn: var(--warn);
  --color-bad: var(--bad);
  --color-calm: var(--p-calm);
  --color-normal: var(--p-normal);
  --color-elevated: var(--p-elevated);
  --color-stressed: var(--p-stressed);
  --color-high: var(--p-high);
  --color-severe: var(--p-severe);
  --color-extreme: var(--p-extreme);
  --font-sans: var(--font-geist-sans), ui-sans-serif, system-ui, sans-serif;
  --font-mono: var(--font-geist-mono), ui-monospace, 'SF Mono', Menlo, monospace;
  --radius-sm: 2px;
  --radius-md: 4px;
}

@layer base {
  html {
    background: var(--bg);
    color: var(--ink);
    -webkit-text-size-adjust: 100%;
    scrollbar-color: var(--line-2) transparent;
  }
  body {
    font-family: var(--font-sans);
    font-feature-settings: 'tnum' 1, 'cv11' 1;
    font-size: 14px;
    line-height: 1.45;
    background: var(--bg);
    color: var(--ink);
  }
  * {
    border-color: var(--line);
  }
  :focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }
  ::selection {
    background: rgba(91, 141, 239, 0.35);
  }
  a {
    text-decoration: none;
  }
  table {
    border-collapse: collapse;
  }
  button,
  input,
  select,
  textarea {
    font: inherit;
    color: inherit;
  }
  svg {
    display: block;
  }
}

@utility num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
@utility label {
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  font-weight: 500;
}
@utility hairline {
  border-top: 1px solid var(--line);
}
@utility panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
@utility grid-texture {
  background-image: linear-gradient(to right, rgba(139, 152, 165, 0.06) 1px, transparent 1px), linear-gradient(to bottom, rgba(139, 152, 165, 0.06) 1px, transparent 1px);
  background-size: 8px 8px;
  mask-image: radial-gradient(ellipse at 40% 30%, rgba(0, 0, 0, 0.9), transparent 75%);
}
@utility scroll-x {
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
@utility snap-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-bottom: 2px;
}
@utility snap-item {
  scroll-snap-align: start;
  flex: 0 0 auto;
}

@layer components {
/* dense typographic tables */
.tbl {
  width: 100%;
  font-size: 12.5px;
}
.tbl th {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  font-weight: 500;
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.tbl td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
  white-space: nowrap;
}
.tbl tr:last-child td {
  border-bottom: 0;
}
.tbl tbody tr:hover td {
  background: var(--panel-2);
}
.tbl .r {
  text-align: right;
}
.tbl th.r {
  text-align: right;
}

/* Pressure Front arcs: dash offset animates only while a front is developing/active (class toggled by data). */
@keyframes front-flow {
  to {
    stroke-dashoffset: -24;
  }
}

/* MapLibre chrome */
.maplibregl-ctrl-attrib {
  font-size: 10px !important;
  background: rgba(7, 10, 15, 0.7) !important;
  color: var(--ink-3) !important;
}
.maplibregl-ctrl-attrib a {
  color: var(--ink-2) !important;
}
.maplibregl-ctrl-group {
  background: var(--panel) !important;
  border: 1px solid var(--line) !important;
  border-radius: var(--radius) !important;
  box-shadow: none !important;
}
.maplibregl-ctrl-group button {
  filter: invert(0.85);
}
.maplibregl-canvas {
  outline: none;
}
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}