/* php-compiler docs — PHP-inspired theme */
:root {
  --php-purple: #777bb4;
  --php-indigo: #4f5b93;
  --php-dark: #1a1a2e;
  --php-deeper: #0f0f1a;
  --php-accent: #8892bf;
  --php-glow: rgba(119, 123, 180, 0.45);
  --php-green: #6bcb77;
  --php-amber: #f0c674;
  --php-red: #e06c75;
  --text: #e8e8f0;
  --text-muted: #9a9ab8;
  --card: rgba(30, 30, 52, 0.85);
  --border: rgba(119, 123, 180, 0.25);
  --radius: 12px;
  --font-sans: "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", ui-monospace, monospace;
}

*,
*::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(--php-deeper);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, var(--php-glow), transparent),
    radial-gradient(circle at 100% 50%, rgba(79, 91, 147, 0.15), transparent 40%),
    linear-gradient(180deg, var(--php-dark) 0%, var(--php-deeper) 100%);
  min-height: 100vh;
}

a {
  color: var(--php-accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: #b8c0ff;
  text-decoration: underline;
}

code,
pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(15, 15, 26, 0.88);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
  color: #fff;
}

.logo svg {
  width: 36px;
  height: 36px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  font-size: 0.92rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.25rem 0;
}

.nav a:hover {
  color: var(--php-purple);
  text-decoration: none;
}

/* Hero */
.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 800px) {
  .hero {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

.hero h1 {
  font-size: clamp(1.85rem, 4vw, 2.65rem);
  line-height: 1.2;
  margin: 0 0 0.75rem;
  background: linear-gradient(135deg, #fff 0%, var(--php-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero .lead {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin: 0 0 1.25rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid var(--border);
  background: rgba(119, 123, 180, 0.12);
  color: var(--php-accent);
}

.badge--live {
  border-color: rgba(107, 203, 119, 0.4);
  background: rgba(107, 203, 119, 0.12);
  color: var(--php-green);
}

.badge--wip {
  border-color: rgba(240, 198, 116, 0.4);
  background: rgba(240, 198, 116, 0.1);
  color: var(--php-amber);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--php-purple), var(--php-indigo));
  color: #fff;
  box-shadow: 0 4px 20px var(--php-glow);
}

.btn--ghost {
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

/* Code window */
.code-window {
  background: #12121f;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.code-window__bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1rem;
  background: rgba(0, 0, 0, 0.35);
  border-bottom: 1px solid var(--border);
}

.code-window__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.code-window__dot:nth-child(1) { background: #ff5f57; }
.code-window__dot:nth-child(2) { background: #febc2e; }
.code-window__dot:nth-child(3) { background: #28c840; }

.code-window__title {
  margin-left: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.code-window pre {
  margin: 0;
  padding: 1.25rem 1.35rem;
  overflow-x: auto;
  line-height: 1.55;
  font-size: 0.82rem;
}

.php-tag { color: #c678dd; }
.php-fn { color: #61afef; }
.php-str { color: #98c379; }
.php-cmt { color: #5c6370; font-style: italic; }
.php-kw { color: #c678dd; }
.php-var { color: #e5c07b; }

/* Main */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

section {
  margin-bottom: 3.5rem;
  scroll-margin-top: 5rem;
}

section h2 {
  font-size: 1.55rem;
  margin: 0 0 0.35rem;
  color: #fff;
}

.section-intro {
  color: var(--text-muted);
  margin: 0 0 1.5rem;
  max-width: 720px;
}

/* Overall progress */
.overall-progress {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  margin-bottom: 2rem;
}

.overall-progress__label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.65rem;
  font-weight: 600;
}

.overall-progress__pct {
  font-size: 1.75rem;
  color: var(--php-purple);
  font-variant-numeric: tabular-nums;
}

.progress-track {
  height: 10px;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--php-indigo), var(--php-purple), #a8b4ff);
  transition: width 0.8s ease;
}

.overall-progress__note {
  margin: 0.85rem 0 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Phase cards */
.phase-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .phase-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .phase-grid--phases {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  border-color: rgba(119, 123, 180, 0.45);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card .phase-num {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--php-purple);
  font-weight: 700;
}

.card p {
  margin: 0 0 0.75rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.card .mini-progress {
  margin-top: 0.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot--done { background: var(--php-green); box-shadow: 0 0 8px rgba(107, 203, 119, 0.5); }
.status-dot--wip { background: var(--php-amber); box-shadow: 0 0 8px rgba(240, 198, 116, 0.4); }
.status-dot--todo { background: #555; }

/* Ladder */
.ladder {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.ladder::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--php-green), var(--php-purple), #444);
}

.ladder li {
  position: relative;
  padding: 0 0 1.35rem 2.75rem;
}

.ladder li:last-child {
  padding-bottom: 0;
}

.ladder__marker {
  position: absolute;
  left: 6px;
  top: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--php-deeper);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
}

.ladder li.is-done .ladder__marker {
  background: var(--php-green);
  border-color: var(--php-green);
  color: #0f0f1a;
}

.ladder li.is-wip .ladder__marker {
  background: var(--php-amber);
  border-color: var(--php-amber);
  color: #0f0f1a;
}

.ladder li.is-todo .ladder__marker {
  color: var(--text-muted);
}

.ladder h4 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.ladder p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
}

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

th,
td {
  padding: 0.65rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: rgba(0, 0, 0, 0.25);
  color: var(--php-accent);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

tr:last-child td {
  border-bottom: none;
}

.status-yes { color: var(--php-green); font-weight: 600; }
.status-no { color: var(--php-red); font-weight: 600; }
.status-wip { color: var(--php-amber); font-weight: 600; }

/* Two tracks */
.dual-track {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 700px) {
  .dual-track {
    grid-template-columns: 1fr 1fr;
  }
}

.track-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
}

.track-panel h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.track-panel--selfhost {
  border-color: rgba(119, 123, 180, 0.4);
}

.track-panel--web {
  border-color: rgba(97, 175, 239, 0.35);
}

/* Footer */
.site-footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
}

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

/* Fade-in */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Markdown status page (development-status.md) */
.status-page {
  max-width: 820px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.status-prose {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 2.25rem;
}

.status-prose__head h1 {
  margin: 0 0 1rem;
  font-size: 1.85rem;
  color: #fff;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
}

.status-prose h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.35rem;
  color: #fff;
}

.status-prose h3 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1.1rem;
  color: var(--php-accent);
}

.status-prose p,
.status-prose li {
  color: var(--text-muted);
}

.status-prose strong {
  color: var(--text);
}

.status-prose a {
  color: var(--php-accent);
}

.status-prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

.status-prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1rem 0 1.5rem;
}

.status-prose th,
.status-prose td {
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  text-align: left;
}

.status-prose th {
  background: rgba(0, 0, 0, 0.3);
  color: var(--php-accent);
}

.status-prose code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(0, 0, 0, 0.35);
  padding: 0.12em 0.4em;
  border-radius: 4px;
  color: #d7dae8;
}

.status-prose pre {
  background: #12121f;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
}

.status-prose pre code {
  background: none;
  padding: 0;
}

.status-prose ul,
.status-prose ol {
  padding-left: 1.35rem;
}

.status-prose em {
  color: var(--text-muted);
  font-style: italic;
}

@media (max-width: 600px) {
  .status-prose {
    padding: 1.25rem 1.1rem;
  }
}

/* Demo section (index.html) */
.demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0 1rem;
}

.demo-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  position: relative;
}

.demo-card--optional {
  border-style: dashed;
  opacity: 0.92;
}

.demo-card__step {
  position: absolute;
  top: 0.85rem;
  right: 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--php-purple);
  background: rgba(119, 123, 180, 0.15);
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
}

.demo-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  color: #fff;
  padding-right: 2rem;
}

.demo-card pre {
  margin: 0 0 0.75rem;
  background: #12121f;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.45;
}

.demo-card pre code {
  color: #d7dae8;
}

.demo-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.demo-disclaimer {
  margin: 1.25rem 0 0;
  padding: 1rem 1.15rem;
  background: rgba(240, 198, 116, 0.08);
  border: 1px solid rgba(240, 198, 116, 0.25);
  border-radius: var(--radius);
  font-size: 0.92rem;
  color: var(--text-muted);
}

.demo-disclaimer strong {
  color: var(--php-amber);
}

/* Index — production sections */
.callout {
  margin: 0 0 1.25rem;
  padding: 1rem 1.2rem;
  background: rgba(119, 123, 180, 0.1);
  border: 1px solid rgba(119, 123, 180, 0.35);
  border-radius: var(--radius);
  font-size: 0.95rem;
  color: var(--text-muted);
}

.callout strong {
  color: var(--text);
}

.callout--stable {
  border-color: rgba(107, 203, 119, 0.35);
  background: rgba(107, 203, 119, 0.08);
}

.backend-grid {
  display: grid;
  gap: 1rem;
  margin: 1.25rem 0;
}

@media (min-width: 700px) {
  .backend-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.backend-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
}

.backend-card h4 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  color: #fff;
}

.backend-card code {
  font-size: 0.82rem;
  color: var(--php-accent);
}

.backend-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.flow-diagram {
  margin: 1.25rem 0 0;
  padding: 1rem 1.15rem;
  background: #12121f;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--text-muted);
  overflow-x: auto;
  white-space: pre;
}

.feature-columns {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.25rem;
}

@media (min-width: 800px) {
  .feature-columns {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.35rem;
}

.feature-panel h4 {
  margin: 0 0 0.65rem;
  font-size: 0.95rem;
  color: var(--php-accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.feature-panel ul {
  margin: 0;
  padding-left: 1.15rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.feature-panel li {
  margin-bottom: 0.35rem;
}

.lineage-table td:first-child {
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  width: 9rem;
}

.site-footer .footer-meta {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}