/* ==========================================================================
 * Krebf support site — shared styles.
 * Published by Apple Pugetsound Program Library Exchange (A.P.P.L.E.), 2026.
 * ========================================================================== */

:root {
  --bg-deep: #0a0806;
  --bg-panel: #141210;
  --bg-panel-2: #1c1915;
  --amber: #ffb547;
  --amber-bright: #ffd89a;
  --amber-dim: #8a5a1f;
  --amber-glow: rgba(255, 181, 71, 0.25);
  --brass: #c08a3e;
  --brass-dark: #6b4a20;
  --cream: #f4e4c1;
  --ink: #2a1f14;
  --rule: rgba(255, 181, 71, 0.15);
  --body-text: #e8d8b8;
  --body-muted: #a89572;
  --code-bg: #0f0d0a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background:
    radial-gradient(ellipse at 50% -10%, rgba(255, 181, 71, 0.08), transparent 50%),
    linear-gradient(180deg, #0a0806 0%, #050403 100%);
  background-attachment: fixed;
  color: var(--body-text);
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 18px;
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Subtle grain overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.04;
  z-index: 1000;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='0.9' numOctaves='3' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' /%3E%3C/svg%3E");
}

a { color: var(--amber); text-decoration: none; border-bottom: 1px dotted var(--amber-dim); }
a:hover { color: var(--amber-bright); border-bottom-style: solid; }
a:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; border-radius: 2px; }

/* ===================== HEADER ===================== */
.site-header {
  padding: 20px 40px;
  background: linear-gradient(180deg, #1a1713 0%, #0f0d0a 100%);
  border-bottom: 1px solid var(--rule);
  box-shadow: inset 0 -1px 0 rgba(0,0,0,0.5), 0 2px 14px rgba(0,0,0,0.4);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(6px);
}

.site-header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.site-mark {
  font-family: 'Major Mono Display', monospace;
  font-size: 26px;
  letter-spacing: 0.15em;
  color: var(--amber);
  text-shadow: 0 0 12px var(--amber-glow);
  text-decoration: none;
  border: none;
  white-space: nowrap;
}
.site-mark .dot { color: var(--brass); }

nav.site-nav {
  display: flex;
  gap: 28px;
  align-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

nav.site-nav a {
  color: var(--body-muted);
  border-bottom: none;
  padding: 6px 2px;
  position: relative;
  transition: color 0.15s;
}
nav.site-nav a:hover { color: var(--amber); }
nav.site-nav a.active {
  color: var(--amber);
}
nav.site-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--amber);
  box-shadow: 0 0 8px var(--amber-glow);
}

/* ===================== HERO ===================== */
.hero {
  padding: 80px 40px 60px;
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-family: 'Major Mono Display', monospace;
  font-size: clamp(42px, 8vw, 88px);
  letter-spacing: 0.08em;
  color: var(--amber);
  text-shadow: 0 0 24px var(--amber-glow), 0 0 4px #fff3;
  margin-bottom: 12px;
  line-height: 1.05;
}

.hero .tagline {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: clamp(20px, 2.2vw, 26px);
  color: var(--amber-dim);
  margin-bottom: 28px;
}

.hero .lede {
  font-size: clamp(16px, 1.5vw, 19px);
  color: var(--body-text);
  max-width: 680px;
  margin: 0 auto 40px;
}

.flourish {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 15px;
  color: var(--amber-dim);
  text-align: center;
  margin: 32px 0 24px;
  position: relative;
}
.flourish::before, .flourish::after {
  content: '❧';
  color: var(--brass);
  margin: 0 14px;
}

/* ===================== BUTTONS ===================== */
.btn-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 16px;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--brass-dark);
  background: linear-gradient(180deg, var(--bg-panel-2) 0%, var(--bg-panel) 100%);
  color: var(--cream);
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.15s;
  box-shadow: inset 0 1px 0 rgba(255, 181, 71, 0.08), 0 2px 6px rgba(0,0,0,0.5);
  text-decoration: none;
}
.btn:hover {
  border-color: var(--amber);
  color: var(--amber-bright);
  box-shadow: inset 0 1px 0 rgba(255, 181, 71, 0.2), 0 0 14px var(--amber-glow), 0 2px 6px rgba(0,0,0,0.5);
  transform: translateY(-1px);
}
.btn.primary {
  background: linear-gradient(180deg, #3a2a12 0%, #261a08 100%);
  border-color: var(--amber);
  color: var(--amber);
  text-shadow: 0 0 6px var(--amber-glow);
}
.btn.primary:hover { color: var(--amber-bright); }

/* ===================== CONTENT ===================== */
main.doc {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 32px 100px;
}

main.doc h1 {
  font-family: 'Major Mono Display', monospace;
  font-size: 36px;
  letter-spacing: 0.08em;
  color: var(--amber);
  margin-bottom: 8px;
  text-shadow: 0 0 12px var(--amber-glow);
}

main.doc > .subtitle {
  font-style: italic;
  color: var(--amber-dim);
  margin-bottom: 32px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 24px;
}

main.doc h2 {
  font-family: 'Major Mono Display', monospace;
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--amber);
  margin: 42px 0 14px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
}
main.doc h2:first-of-type { border-top: none; padding-top: 0; margin-top: 28px; }

main.doc h3 {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 600;
  font-size: 22px;
  color: var(--amber-bright);
  margin: 28px 0 10px;
}

main.doc p {
  margin-bottom: 16px;
}

main.doc ul, main.doc ol {
  margin: 0 0 20px 28px;
}
main.doc li { margin-bottom: 8px; }
main.doc li > p { margin-bottom: 6px; }

main.doc code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  background: var(--code-bg);
  color: var(--amber-bright);
  padding: 2px 7px;
  border-radius: 3px;
  border: 1px solid var(--rule);
  white-space: nowrap;
}

main.doc pre {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13.5px;
  background: var(--code-bg);
  color: var(--cream);
  padding: 16px 20px;
  border-radius: 4px;
  border: 1px solid var(--rule);
  overflow-x: auto;
  margin: 8px 0 20px;
  line-height: 1.55;
  box-shadow: inset 0 1px 0 rgba(255, 181, 71, 0.04);
}
main.doc pre code {
  background: transparent;
  padding: 0;
  border: none;
  white-space: pre;
  color: inherit;
  font-size: inherit;
}

main.doc blockquote {
  border-left: 3px solid var(--brass);
  padding: 2px 18px;
  margin: 20px 0;
  font-style: italic;
  color: var(--body-muted);
  background: rgba(255, 181, 71, 0.03);
}

main.doc table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0 24px;
  font-size: 15px;
}
main.doc th, main.doc td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
main.doc th {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--amber);
  border-bottom: 1px solid var(--brass-dark);
}
main.doc tr:last-child td { border-bottom: none; }

main.doc hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 40px 0;
}

.callout {
  background: linear-gradient(180deg, #1a1410 0%, #100c08 100%);
  border-left: 3px solid var(--amber);
  padding: 16px 20px;
  border-radius: 0 4px 4px 0;
  margin: 20px 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}
.callout.warn { border-left-color: var(--red-led, #ff5a3c); }
.callout.warn h3 { color: #ff8b73; }
.callout h3 { margin-top: 0; font-family: 'JetBrains Mono', monospace; font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--amber); font-weight: 500; }
.callout p:last-child { margin-bottom: 0; }

/* Table of contents for long pages */
.toc {
  background: var(--bg-panel);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 20px 24px;
  margin-bottom: 32px;
}
.toc h3 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 12px;
}
.toc ol { margin: 0 0 0 22px; }
.toc li { margin-bottom: 4px; font-size: 15px; }
.toc a { border-bottom: none; }

/* ===================== CARD GRID ===================== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 40px 0;
}
.card {
  background: linear-gradient(180deg, var(--bg-panel-2) 0%, var(--bg-panel) 100%);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 24px;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.card:hover {
  transform: translateY(-2px);
  border-color: var(--amber-dim);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4), 0 0 20px var(--amber-glow);
}
.card .card-icon {
  font-family: 'Major Mono Display', monospace;
  font-size: 28px;
  color: var(--amber);
  margin-bottom: 10px;
  text-shadow: 0 0 10px var(--amber-glow);
}
.card h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 20px;
  font-weight: 600;
  color: var(--cream);
  margin-bottom: 10px;
}
.card p { font-size: 15px; color: var(--body-muted); margin-bottom: 0; }

/* ===================== FOOTER ===================== */
.site-footer {
  margin-top: 80px;
  padding: 30px 40px 40px;
  border-top: 1px solid var(--rule);
  background: linear-gradient(180deg, #0a0806 0%, #050403 100%);
  text-align: center;
  font-size: 13px;
  color: var(--body-muted);
  font-family: 'JetBrains Mono', monospace;
}
.site-footer p { margin-bottom: 6px; }
.site-footer a { color: var(--amber-dim); }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 640px) {
  .site-header { padding: 14px 20px; }
  .site-mark { font-size: 20px; }
  nav.site-nav { gap: 16px; font-size: 12px; }
  .hero { padding: 48px 20px 32px; }
  main.doc { padding: 32px 20px 60px; font-size: 16px; }
  main.doc h1 { font-size: 28px; }
  main.doc h2 { font-size: 17px; }
  main.doc pre { font-size: 12.5px; padding: 12px 14px; }
}