/* ============================================================ */
/* SHARED BRAND SYSTEM — chaitanyamalhotra.com sub-pages         */
/* Link via: <link rel="stylesheet" href="/assets/site.css">     */
/* Every sub-page (chess, sudoku, rigveda, moon) must use this.  */
/* ============================================================ */

@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap");

/* ---- Design tokens ---- */
:root {
  --primary: #d63d00;          /* burnt-orange industrial accent */
  --primary-strong: #b83300;   /* darker, for text contexts (P2.13) */
  --ink: #1a1a1a;
  --paper: #cccccc;
  --surface-1: #ffffff;
  --surface-2: #f0f0f0;
  --surface-3: #e0e0e0;
  --surface-4: #dcdcdc;
  --font-display: "Space Grotesk", ui-monospace, monospace;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
  --border-w: 2px;
}

html.dark {
  --ink: #f0f0f0;
  --paper: #212121;
  --surface-1: #212121;
  --surface-2: #2a2a2a;
  --surface-3: #252525;
  --surface-4: #1a1a1a;
}

/* ---- Minimal reset so sub-pages match index ---- */
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: var(--font-display);
  background: var(--paper);
  color: var(--ink);
}

/* ---- Shared top navigation bar (P2.1, P2.2) ---- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 1rem;
  background: var(--paper);
  border-bottom: var(--border-w) solid var(--ink);
  font-family: var(--font-display);
}
.site-nav__brand {
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}
.site-nav__links {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.site-nav__links a {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  text-decoration: none;
  padding: 0.25rem 0.5rem;
  border: var(--border-w) solid transparent;
}
.site-nav__links a:hover {
  border-color: var(--ink);
}

/* ---- Industrial card language (2px borders) ---- */
.site-card {
  border: var(--border-w) solid var(--ink);
  background: var(--surface-1);
  padding: 1rem;
}

/* ---- Focus + reduced motion (P3.3) ---- */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}