/* Shared styles across all companion pages */

:root {
  --bg: #f7f5f0;
  --ink: #1c1c1c;
  --muted: #6b6b6b;
  --line: #d8d4cc;
  --accent: #1a3a5f;
  --accent-light: #e8eef5;
  --card-bg: #ffffff;
  --code-bg: #fcfcfa;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Page layout: full-width header + content */
.page {
  padding: 24px 32px 56px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
  margin-bottom: 22px;
}

.page-header h1 {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 1.45em;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.page-header .sub {
  color: var(--muted);
  font-size: 0.9em;
  font-style: italic;
  margin-top: 2px;
}

.page-header-left { flex: 1; }

.header-actions {
  display: flex; gap: 8px; margin-left: 20px; flex-shrink: 0;
}

.back-link, .pdf-link {
  font-size: 0.85em;
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 6px;
  transition: all 0.15s;
  white-space: nowrap;
}
.back-link { color: var(--muted); }
.back-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-light);
}
.pdf-link {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.pdf-link:hover { background: #254e7a; border-color: #254e7a; }

/* Tabs */
.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.tab {
  padding: 6px 14px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.88em;
  color: #555;
  font-family: inherit;
  transition: all 0.15s;
}
.tab:hover { border-color: var(--accent); color: var(--accent); }
.tab.active {
  background: var(--accent); color: #fff; border-color: var(--accent); font-weight: 500;
}

/* Cards / panels */
.panel {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 18px;
}
.panel-head {
  background: #f0ede5;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.panel-key { font-weight: 600; font-size: 0.9em; color: var(--accent); }
.panel-name { font-size: 0.78em; color: var(--muted); font-style: italic; }
.panel-body {
  padding: 14px 18px;
  font-family: "SFMono-Regular", Consolas, "Courier New", monospace;
  font-size: 0.78em;
  line-height: 1.55;
  white-space: pre-wrap;
  color: #333;
  background: var(--code-bg);
  max-height: 520px;
  overflow-y: auto;
}
.panel-body.plain {
  font-family: inherit;
  font-size: 0.92em;
  white-space: normal;
}

/* 2-column or 3-column comparative layout */
.columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 900px) {
  .columns.two { grid-template-columns: 1fr 1fr; }
  .columns.three { grid-template-columns: 1fr 1fr 1fr; }
}

/* Cross-links footer strip */
.cross-links {
  margin-top: 36px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.82em;
}
.cross-links a {
  color: var(--muted);
  text-decoration: none;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 14px;
  transition: all 0.15s;
}
.cross-links a:hover { color: var(--accent); border-color: var(--accent); }
.cross-links .label { color: var(--muted); padding: 4px 4px; font-style: italic; }

/* Simple role header (for multi-turn examples) */
.multi-turn-msg {
  margin-bottom: 6px;
  padding: 6px 10px;
  border-radius: 4px;
}
.multi-turn-user { background: #e8eef5; }
.multi-turn-asst { background: #eef5e8; }
.role { font-weight: 600; color: #555; margin-right: 6px; }

/* Info banner */
.note {
  background: #fff8e1;
  border: 1px solid #f0e0a0;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 0.88em;
  color: #6b5a20;
  margin-bottom: 18px;
}