/* ============================================================
 *  site.css — shared baseline for the Color Pie Explorer.
 *  Palette (light + dark), base typography, header + theme
 *  toggle, MTG color tokens. Mobile-first.
 *
 *  Page-specific styles (row list, filters, detail dialog) stay
 *  inline on each page. Palette/tokens adapted from NO-KINGS.
 * ============================================================ */

/* ============== Theme ============== */
:root {
  --bg: #eef0f3;
  --surface: #ffffff;
  --surface-2: #f5f6f9;
  --text: #161a20;
  --text-soft: #5b6573;
  --border: #d8dce3;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 8px 24px rgba(0,0,0,0.05);
  --accent: #2659a8; --accent-ink: #ffffff;

  /* MTG color tokens (W/U/B/R/G/C) */
  --c-W: #f4e8c1; --c-W-ink: #5c4a16;
  --c-U: #2a6fb5; --c-U-ink: #ffffff;
  --c-B: #4b4753; --c-B-ink: #ffffff;
  --c-R: #c4453f; --c-R-ink: #ffffff;
  --c-G: #2f9a63; --c-G-ink: #ffffff;
  --c-C: #b9c0cc; --c-C-ink: #2a2f38;
  --c-Y: #c69a1e; --c-Y-ink: #ffffff;   /* MultiColor gold */

  /* Tier accents */
  --tier-primary: #2da06b;
  --tier-secondary: #da802a;
  --tier-tertiary: #8a8f99;
}

[data-theme="dark"] {
  --bg: #0f1a2e;
  --surface: #18243d;
  --surface-2: #14203a;
  --text: #dce4f0;
  --text-soft: #8fa0b8;
  --border: #2a3a55;
  --shadow: 0 1px 3px rgba(0,0,0,0.45), 0 8px 24px rgba(0,0,0,0.35);
  --accent: #7ec6ff; --accent-ink: #0c1119;

  --c-W: #d8caa0; --c-W-ink: #2a2310;
  --c-U: #3f87cf; --c-U-ink: #07101d;
  --c-B: #6a6577; --c-B-ink: #0c1119;
  --c-R: #e0635c; --c-R-ink: #1b0807;
  --c-G: #43b97c; --c-G-ink: #05140c;
  --c-C: #8b94a3; --c-C-ink: #0c1119;
  --c-Y: #e3c04b; --c-Y-ink: #1c1605;   /* MultiColor gold */

  --tier-primary: #6dd6a8;
  --tier-secondary: #ffae5c;
  --tier-tertiary: #9aa3b0;
}

/* ============== Base ============== */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  transition: background 0.2s ease, color 0.2s ease;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
a:hover { text-decoration: underline; }

/* ============== Header ============== */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.site-header-inner {
  max-width: 1100px; margin: 0 auto;
  padding: 10px 16px;
  display: flex; gap: 12px; align-items: center;
}
.site-title { font-size: 16px; font-weight: 700; margin: 0; }
.site-title small { font-weight: 500; color: var(--text-soft); }
.theme-toggle {
  margin-left: auto;
  width: 38px; height: 38px;
  border: 1px solid var(--border); border-radius: 9px;
  background: var(--surface-2); color: var(--text);
  font-size: 17px; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
}
.theme-toggle:hover { border-color: var(--accent); }

/* ============== A11y ============== */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ============== Footer ============== */
/* In-flow page footer (not fixed) — sits at the end of each page's <main class="wrap">,
   so it scrolls with the body and inherits the content column's width + gutters. */
.site-footer {
  margin-top: 48px;
  padding: 28px 16px 26px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-soft);
  font-size: 12.5px;
  line-height: 1.9;
  letter-spacing: .02em;
}
.site-footer p { margin: 0; }
.site-footer .ff-credit { font-weight: 500; }
.site-footer .ff-names { font-weight: 700; letter-spacing: .08em; }   /* author signature — bold but still subdued */