/*
  File:    globals.css
  Path:    apps/web/app/globals.css
  Project: AI Risk Index — airiskindex.io
  Author:  Simon-Pierre Boucher
  Contact: contact@spboucher.ai
  Copyright © 2026 Simon-Pierre Boucher. All rights reserved.

  Description: Design tokens (validated dataviz palette roles), card idiom, hero wash, drawer animation.
*/

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

/* Data-viz roles — reference palette (dataviz skill, references/palette.md).
   Charts reference roles, never raw hex; dark steps are selected, not flipped. */
:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface-1: #fcfcfb;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.1);
  --seq: #2a78d6; /* sequential blue 450 (light) */
  --seq-deep: #1c5cab;
  --seq-track: #cde2fb; /* lighter step of the same ramp (meter/bar track) */
  --wash: rgba(42, 120, 214, 0.1); /* series hue at ~10% — area wash */
  --header: rgba(252, 252, 251, 0.82);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface-1: #1a1a19;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.1);
    --seq: #3987e5; /* sequential blue 400 (dark) */
    --seq-deep: #6da7ec;
    --seq-track: #0d366b; /* recessive step of the same ramp on dark */
    --wash: rgba(57, 135, 229, 0.12);
    --header: rgba(13, 13, 13, 0.82);
  }
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--page);
  color: var(--ink);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--seq);
  color: #ffffff;
}

:focus-visible {
  outline: 2px solid var(--seq);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Hero backdrop — two soft washes of the series hue, light and airy. */
.hero-wash {
  background:
    radial-gradient(56rem 26rem at 85% -8%, var(--wash), transparent 62%),
    radial-gradient(40rem 22rem at 8% -14%, var(--wash), transparent 55%);
}

/* Card idiom used across the site. */
.card {
  border: 1px solid var(--border);
  background: var(--surface-1);
  border-radius: 1rem;
}

.card-hover {
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.card-hover:hover {
  border-color: var(--seq);
  box-shadow: 0 4px 20px -8px rgba(42, 120, 214, 0.25);
}

@keyframes drawer-in {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}