/* Grav MUD (Alpha) — official Grav-inspired promo theme */
:root {
  --grav-blue: #0082c0;
  --grav-blue-dark: #006699;
  --grav-navy: #1e3a5f;
  --bg: #f7f9fc;
  --bg-card: #ffffff;
  --text: #1a2332;
  --muted: #5c6b7a;
  --accent: var(--grav-blue);
  --accent-glow: #33a3d4;
  --gold: #e8a317;
  --teal: #2dd4bf;
  --border: #d8e0ea;
  --shadow: 0 8px 32px rgb(30 58 95 / 0.08);
  --radius: 0.65rem;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-display: "Archivo Black", system-ui, sans-serif;
  --max: 68rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

body.mud-spec-body {
  background: linear-gradient(180deg, #eef4fa 0%, var(--bg) 12rem);
}

a {
  color: var(--accent);
}

/* —— Site shell —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  background: rgb(255 255 255 / 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text);
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.45rem;
  background: linear-gradient(135deg, var(--grav-blue), var(--grav-navy));
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
}

.logo-text strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.logo-text span {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
}

.site-nav a {
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--muted);
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.header-cta .btn {
  font-size: 0.85rem;
  padding: 0.45rem 1rem;
}

.site-main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--muted);
  text-align: center;
}

.site-footer p {
  margin: 0.35rem 0;
}

.footer-note {
  opacity: 0.85;
}

.mud-alpha-badge {
  margin-top: 2.5rem;
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
}

/* —— MUD page wrapper —— */
.mud-page {
  --bg: #f7f9fc;
  --bg-card: #ffffff;
  --text: #1a2332;
  --muted: #5c6b7a;
  --accent: #0082c0;
  --border: #d8e0ea;
}

.mud-page[data-mud-layout="promo"] .hero {
  padding-top: 1.5rem;
}

/* —— Buttons —— */
.btn {
  display: inline-block;
  margin: 0.25rem 0.5rem 0.25rem 0;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  border: 2px solid var(--accent);
  color: var(--accent);
  background: transparent;
  transition: background 0.15s, color 0.15s;
}

.btn:hover {
  background: var(--accent);
  color: #fff;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
}

.btn.primary:hover {
  background: var(--grav-blue-dark);
  border-color: var(--grav-blue-dark);
}

/* —— Hero —— */
.hero {
  margin: 0 0 2.5rem;
  padding: 2rem 0 1rem;
}

.hero-brand {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 1rem;
}

.hero-mark {
  flex-shrink: 0;
  width: 4.5rem;
  height: 4.5rem;
  display: grid;
  place-items: center;
  border-radius: 1rem;
  background: linear-gradient(145deg, var(--grav-blue), var(--grav-navy));
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.1rem;
  box-shadow: var(--shadow);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
  margin: 0;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero .eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.hero .lead {
  font-size: 1.15rem;
  max-width: 42rem;
  color: var(--muted);
}

.hero-actions {
  margin-top: 1.25rem;
}

/* —— Quote —— */
.quote-block {
  margin: 2.5rem 0;
  padding: 1.5rem 1.75rem;
  background: var(--bg-card);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.quote-block blockquote {
  margin: 0;
  font-size: 1.2rem;
  font-style: italic;
}

.quote-block cite {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
  font-style: normal;
}

/* —— Cards grid —— */
.grid-section {
  margin: 3rem 0;
}

.grid-section h2 {
  font-family: var(--font-display);
  font-size: 1.65rem;
  margin-bottom: 1.25rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
}

.card {
  padding: 1.35rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--grav-navy);
}

.card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

/* —— Timeline —— */
.timeline {
  margin: 3rem 0;
}

.timeline h2 {
  font-family: var(--font-display);
}

.timeline ol {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid var(--border);
}

.timeline li {
  position: relative;
  margin: 0 0 1.25rem;
  padding: 0 0 0 1.5rem;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 0.35rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.timeline time {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
}

/* —— Compare —— */
.compare {
  margin: 3rem 0;
}

.compare-table {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.compare-head,
.compare-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 0.85rem 1.15rem;
}

.compare-head {
  background: var(--grav-navy);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.compare-row {
  border-top: 1px solid var(--border);
}

.compare-row.highlight {
  background: rgb(0 130 192 / 0.06);
}

/* —— Pricing —— */
.pricing {
  margin: 3rem 0;
}

.pricing h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
}

.pricing-intro {
  color: var(--muted);
  max-width: 40rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.pricing-card {
  position: relative;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.pricing-card--featured {
  border-color: var(--accent);
  box-shadow: 0 12px 40px rgb(0 130 192 / 0.15);
}

.pricing-badge {
  position: absolute;
  top: -0.65rem;
  right: 1rem;
  padding: 0.2rem 0.65rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--gold);
  color: #1a2332;
  border-radius: 999px;
}

.pricing-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
}

.pricing-price {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin: 0 0 0.5rem;
  color: var(--accent);
}

.pricing-tagline {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.pricing-features {
  margin: 0 0 1.25rem;
  padding-left: 1.1rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.pricing-features li {
  margin-bottom: 0.35rem;
}

.pricing-note {
  margin-top: 1.5rem;
  font-size: 0.88rem;
  color: var(--muted);
  font-style: italic;
}

/* —— Code samples —— */
.code-block {
  margin: 2rem 0;
}

.code-sample {
  margin: 0;
  background: #0f172a;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.code-lang {
  padding: 0.45rem 1rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--teal);
  background: #1e293b;
}

.code-sample pre {
  margin: 0;
  padding: 1.15rem 1.25rem;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.5;
}

.code-sample code {
  color: #e2e8f0;
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
}

.code-caption {
  padding: 0.65rem 1rem;
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}

/* —— Wiki / docs —— */
.wikipedia-erasure {
  margin: 2rem 0;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.wikipedia-erasure h2 {
  margin-top: 0;
  font-family: var(--font-display);
}

.wiki-debate h3 {
  font-size: 1rem;
  color: var(--grav-navy);
}

.archive-note {
  font-size: 0.88rem;
  color: var(--muted);
}

/* —— Manifesto —— */
.manifesto {
  margin: 3rem 0;
  padding: 2rem;
  background: linear-gradient(135deg, var(--grav-navy), #0f2744);
  color: #e8eef4;
  border-radius: var(--radius);
}

.manifesto h2 {
  color: #fff;
  font-family: var(--font-display);
}

.manifesto p {
  color: #c5d3e0;
}

.manifesto .sign-off {
  margin-top: 1.25rem;
  font-weight: 700;
  color: var(--teal);
}

/* —— Receipts / links —— */
.receipts {
  margin: 2rem 0;
}

.receipt-list {
  list-style: none;
  padding: 0;
}

.receipt-list li {
  margin: 0.5rem 0;
  padding: 0.65rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* —— MUD Spec reference (Code Designer style) —— */
body.mud-spec-body .mud-page[data-mud-layout="spec-doc"] {
  max-width: none;
}

.mud-page[data-mud-layout="spec-doc"] .hero {
  padding-top: 0.5rem;
}

.mud-page h2#toc + ul {
  margin: 1.5rem 0 2.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  columns: 2;
  column-gap: 2rem;
}

.mud-page h2#toc + ul a {
  font-weight: 600;
  text-decoration: none;
}

.mud-page h2#toc + ul a:hover {
  text-decoration: underline;
}

.mud-spec-table-wrap {
  overflow-x: auto;
  margin: 1.5rem 0;
}

.mud-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.mud-spec-table th,
.mud-spec-table td {
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  text-align: left;
}

.mud-spec-table th {
  background: var(--grav-navy);
  color: #fff;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mud-spec-table code {
  font-size: 0.85em;
  color: var(--grav-blue-dark);
}

.mud-spec-entry {
  margin: 2.5rem 0;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 5rem;
}

.mud-spec-entry-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.65rem 1rem;
  margin-bottom: 0.35rem;
}

.mud-spec-id {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--grav-blue);
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
}

.mud-spec-entry-title {
  margin: 0;
  font-size: 1.35rem;
  font-family: var(--font-display);
  color: var(--grav-navy);
}

.mud-spec-desc {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.mud-spec-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: start;
}

.mud-spec-pane-label {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.mud-spec-pane--source .mud-spec-pane-label {
  color: var(--grav-blue);
}

.mud-spec-pane--output .mud-spec-pane-label {
  color: var(--gold);
}

.mud-spec-code {
  margin: 0;
  padding: 1rem;
  background: #0f172a;
  border: 1px solid rgb(0 130 192 / 0.35);
  border-radius: var(--radius);
  font-size: 0.72rem;
  line-height: 1.5;
  overflow-x: auto;
  color: #e2e8f0;
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  white-space: pre-wrap;
  word-break: break-word;
}

.mud-spec-preview {
  padding: 1rem;
  background: var(--bg-card);
  border: 1px dashed rgb(0 130 192 / 0.45);
  border-radius: var(--radius);
  min-height: 4rem;
}

.mud-spec-preview .hero {
  margin: 0;
  padding: 0.5rem 0;
}

.mud-spec-preview .pricing-grid {
  grid-template-columns: 1fr;
}

.mud-spec-preview .grid-section h2,
.mud-spec-preview .timeline h2 {
  font-size: 1rem;
  margin-bottom: 0.65rem;
}

.mud-spec-preview .cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 0.65rem;
}

.mud-spec-preview .card {
  padding: 0.75rem;
  margin: 0;
}

.mud-spec-preview .card h3 {
  font-size: 0.85rem;
  margin: 0 0 0.35rem;
}

.mud-spec-preview .card p {
  font-size: 0.78rem;
  margin: 0;
  line-height: 1.45;
}

.mud-spec-preview .timeline ol {
  margin: 0;
  padding-left: 1.25rem;
}

.mud-spec-preview .timeline li {
  margin-bottom: 0.5rem;
  font-size: 0.82rem;
}

.mud-spec-caption {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
  font-style: italic;
}

@media (max-width: 900px) {
  .mud-spec-pair {
    grid-template-columns: 1fr;
  }

  .mud-page h2#toc + ul {
    columns: 1;
  }
}

@media (max-width: 640px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .compare-head,
  .compare-row {
    grid-template-columns: 1fr;
  }
}