/* ==============================
   GIA Reference House Style
   ============================== */

:root {
  --bg: #0f1320;
  --fg: #e6e9ef;
  --muted: #a8b0c0;
  --accent: #7cc4ff;
  --accent2: #ffd36e;
  --card: #161b2b;
  --line: #2a3248;
}

/* Reset / base */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Arial,Helvetica,sans-serif;
  background: radial-gradient(1200px 800px at 70% -10%, #1b2035 0%, var(--bg) 40%, #0a0d16 100%);
  color: var(--fg);
  line-height: 1.6;
}

/* Page container */
.wrap {
  max-width: 980px;
  margin: 40px auto;
  padding: 0 20px;
}

/* Headings */
h1 {
  font-size: 1.9rem;
  margin: 0 0 6px;
}

h2 {
  margin: 20px 0 10px;
}

h3 {
  margin: 16px 0 8px;
}

/* Text */
p {
  margin: 0 0 14px;
}

.lead {
  color: var(--muted);
}

/* Cards / sections */
.card {
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0));
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
  margin: 18px 0;
}

/* Lists */
ul {
  margin: 6px 0 14px 18px;
}

li {
  margin: 4px 0;
}

/* Inline code */
code {
  background: #0b0e18;
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 6px;
}

/* Subtle separators */
hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: 28px 0;
}

/* Muted notes / captions */
.caption {
  color: var(--muted);
  font-size: 0.92rem;
}

/* Print safety */
@media print {
  body {
    background: #fff;
    color: #000;
  }

  .card {
    box-shadow: none;
    border-color: #888;
  }
}

/* =========================================================
   Research pages: compact header
   ========================================================= */

.wrap > header {
  padding: 0;
  margin: 0 0 12px 0;
}

.wrap > header h1 {
  margin: 0 0 8px 0;
  line-height: 1.15;
}

.wrap > header .lead {
  margin: 0;
}

/* =========================================================
   Research reference links (light blue on dark)
   ========================================================= */

/* Normal (unvisited) */
a {
  color: var(--accent);          /* #7cc4ff */
  text-decoration: underline;
}

/* Visited (slightly muted, still blue - no purple) */
a:visited {
  color: #6aaee6;
}

/* Hover */
a:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* Active (mouse down) */
a:active {
  color: #99caff;
}

/* Keyboard focus (accessibility) */
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* =========================================================
   Research link grids / cards
   ========================================================= */

.link-grid a {
  display: block;
  color: var(--accent);
  background-color: #222;
  border: 1px solid var(--line);
  border-radius: 10px;
  text-decoration: none;
}

/* Visited grid links */
.link-grid a:visited {
  color: #6aaee6;
}

/* Hover grid links */
.link-grid a:hover {
  color: #ffffff;
  border-color: var(--accent);
  background-color: #333;
}

/* Active grid links */
.link-grid a:active {
  color: #99caff;
}

/* Keyboard focus for grid links */
.link-grid a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}