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

:root {
  --bg:        #0a0a0a;
  --surface:   #111111;
  --border:    #1f1f1f;
  --accent:    #4ade80;
  --accent-dim:#1a3d24;
  --blue:      #60a5fa;
  --purple:    #a78bfa;
  --orange:    #fb923c;
  --text:      #e5e5e5;
  --muted:     #737373;
  --radius:    8px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── Nav ── */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
nav .inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 56px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 1rem; color: var(--text);
}
.nav-logo svg { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a {
  color: var(--muted); font-size: 0.875rem; padding: 6px 9px; white-space: nowrap;
  border-radius: var(--radius); transition: color .15s, background .15s;
}
.nav-links a:hover { color: var(--text); background: var(--surface); text-decoration: none; }
.nav-links .btn-gh {
  display: flex; align-items: center; gap: 6px;
  color: var(--text); background: var(--surface);
  border: 1px solid var(--border); padding: 6px 14px;
  border-radius: var(--radius); font-size: 0.875rem;
  transition: border-color .15s;
}
.nav-links .btn-gh:hover { border-color: var(--muted); text-decoration: none; }

/* ── Hero ── */
.hero {
  padding: 96px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(74,222,128,.07) 0%, transparent 70%);
  pointer-events: none;
}
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.75rem; font-weight: 600; letter-spacing: .05em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-dim);
  border: 1px solid rgba(74,222,128,.25);
  padding: 4px 12px; border-radius: 999px; margin-bottom: 24px;
}
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.1;
  color: #ffffff; margin-bottom: 20px;
}
h1 span { color: var(--accent); }
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--muted); max-width: 600px; margin: 0 auto 40px;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius);
  font-size: 0.9375rem; font-weight: 600; transition: opacity .15s;
  cursor: pointer; border: none;
}
.btn:hover { opacity: 0.85; text-decoration: none; }
.btn-primary { background: var(--accent); color: #000; }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--muted); }

/* ── Hierarchy diagram ── */
.hierarchy {
  margin: 64px 0;
  display: flex; justify-content: center;
}
.hierarchy-inner {
  display: flex; align-items: center; gap: 0;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px 32px; flex-wrap: wrap;
  justify-content: center; gap: 4px;
}
.h-item {
  display: flex; flex-direction: column; align-items: center;
  gap: 4px; padding: 8px 20px;
}
.h-icon {
  width: 36px; height: 36px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.h-label { font-size: 0.8125rem; font-weight: 600; color: var(--text); }
.h-sub { font-size: 0.7rem; color: var(--muted); }
.h-arrow { color: var(--border); font-size: 1.5rem; padding: 0 4px; align-self: center; }

/* ── Section headings ── */
.section { padding: 64px 0; border-top: 1px solid var(--border); }
.section-label {
  font-size: 0.75rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 12px;
}
h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700; letter-spacing: -0.02em; color: #fff; margin-bottom: 12px;
}
.section-sub { color: var(--muted); max-width: 560px; margin-bottom: 48px; }

/* ── Feature grid ── */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.feature-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 24px;
  transition: border-color .15s;
}
.feature-card:hover { border-color: #333; }
.feature-icon {
  width: 40px; height: 40px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; margin-bottom: 16px;
}
.feature-card h3 { font-size: 0.9375rem; font-weight: 600; color: #fff; margin-bottom: 8px; }
.feature-card p { font-size: 0.875rem; color: var(--muted); line-height: 1.6; }

/* ── Docs grid ── */
.docs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.doc-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px 24px;
  display: flex; flex-direction: column; gap: 8px;
  transition: border-color .15s;
}
.doc-card:hover { border-color: var(--accent); text-decoration: none; }
.doc-tag {
  font-size: 0.7rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--muted);
}
.doc-card h3 { font-size: 0.9375rem; font-weight: 600; color: #fff; }
.doc-card p { font-size: 0.8125rem; color: var(--muted); }
.doc-arrow { margin-top: auto; color: var(--accent); font-size: 0.8125rem; font-weight: 600; }

/* ── Stack table ── */
.stack-table { width: 100%; border-collapse: collapse; }
.stack-table th {
  text-align: left; font-size: 0.75rem; font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase; color: var(--muted);
  padding: 0 16px 12px; border-bottom: 1px solid var(--border);
}
.stack-table td {
  padding: 14px 16px; border-bottom: 1px solid var(--border);
  font-size: 0.875rem; vertical-align: middle;
}
.stack-table tr:last-child td { border-bottom: none; }
.stack-table .layer { color: var(--muted); }
.stack-table .tech { color: #fff; font-weight: 500; }
.stack-table .note { color: var(--muted); }
.chip {
  display: inline-block; font-size: 0.7rem; font-weight: 600;
  padding: 2px 8px; border-radius: 4px; border: 1px solid var(--border);
  color: var(--muted); background: var(--surface);
}

/* ── Config section ── */
.config-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 32px; }
@media (max-width: 720px) { .config-grid { grid-template-columns: 1fr; } }
.config-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
}
.config-card-header {
  padding: 14px 20px; border-bottom: 1px solid var(--border);
  font-size: 0.8125rem; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; color: var(--muted);
}
.config-row {
  display: grid; grid-template-columns: auto 1fr;
  gap: 0; border-bottom: 1px solid var(--border);
}
.config-row:last-child { border-bottom: none; }
.config-val {
  padding: 10px 16px; font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.8rem; font-weight: 600; color: var(--blue);
  border-right: 1px solid var(--border); white-space: nowrap;
}
.config-desc { padding: 10px 16px; font-size: 0.8125rem; color: var(--muted); }

.env-table { width: 100%; border-collapse: collapse; }
.env-table th {
  text-align: left; font-size: 0.75rem; font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase; color: var(--muted);
  padding: 0 16px 12px; border-bottom: 1px solid var(--border);
}
.env-table td {
  padding: 11px 16px; border-bottom: 1px solid var(--border);
  font-size: 0.8125rem; vertical-align: top;
}
.env-table tr:last-child td { border-bottom: none; }
.env-table .env-var { font-family: 'SF Mono', 'Fira Code', monospace; font-size: 0.8rem; color: var(--blue); white-space: nowrap; }
.env-table .env-default { color: var(--muted); font-family: 'SF Mono', 'Fira Code', monospace; font-size: 0.75rem; white-space: nowrap; }
.env-table .env-desc { color: var(--muted); }
.env-table .env-required { color: var(--orange); font-size: 0.7rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; }

.callout {
  background: rgba(251,146,60,.08); border: 1px solid rgba(251,146,60,.25);
  border-radius: 10px; padding: 16px 20px; font-size: 0.875rem;
  color: var(--text); line-height: 1.6; margin-top: 24px;
}
.callout strong { color: var(--orange); }

/* ── Quickstart ── */
.code-block {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 20px 24px; font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.8125rem; line-height: 1.8; overflow-x: auto;
}
.code-block .comment { color: var(--muted); }
.code-block .cmd { color: var(--accent); }
.code-block .arg { color: var(--blue); }

/* ── Status table ── */
.status-table { width: 100%; border-collapse: collapse; }
.status-table th {
  text-align: left; font-size: 0.75rem; font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase; color: var(--muted);
  padding: 0 16px 12px; border-bottom: 1px solid var(--border);
}
.status-table td {
  padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 0.875rem;
}
.status-table tr:last-child td { border-bottom: none; }
.status-pill {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.75rem; font-weight: 600; padding: 2px 10px; border-radius: 999px;
}
.status-pill.done { background: rgba(74,222,128,.12); color: var(--accent); }
.status-pill.wip  { background: rgba(251,146,60,.12);  color: var(--orange); }
.status-pill.plan { background: rgba(96,165,250,.12);  color: var(--blue); }
.status-pill::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0; margin-top: 80px;
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
}
.footer-left { display: flex; flex-direction: column; gap: 4px; }
.footer-logo { font-weight: 700; font-size: 0.9375rem; color: #fff; }
.footer-copy { font-size: 0.8125rem; color: var(--muted); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.8125rem; color: var(--muted); }
.footer-links a:hover { color: var(--text); }

/* ── Page chrome ── */
.nav-links a.active { color: var(--text); background: var(--surface); }
.nav-toggle { display: none; }
.page-hero { padding: 72px 0 40px; position: relative; overflow: hidden; }
.page-hero::before {
  content: ''; position: absolute; top: -260px; right: -120px; width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(74,222,128,.06) 0%, transparent 70%); pointer-events: none;
}
.page-hero h1 { font-size: clamp(2rem, 4.5vw, 3rem); text-align: left; }
.page-hero .hero-sub { margin: 0 0 24px; text-align: left; max-width: 720px; }
.page-hero .links { display: flex; gap: 18px; flex-wrap: wrap; font-size: .9rem; }
.crumb { font-size: .8rem; color: var(--muted); margin-bottom: 16px; }
.crumb a { color: var(--muted); }

/* ── Feature rows: text beside a screenshot ── */
.feature-row { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px; align-items: center; padding: 48px 0; border-top: 1px solid var(--border); }
.feature-row.flip { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.feature-row.flip .row-text { order: 2; }
.feature-row.stack { grid-template-columns: 1fr; }
.row-text h2 { font-size: clamp(1.3rem, 2.4vw, 1.6rem); }
.row-text p { color: var(--muted); margin-bottom: 12px; }
.row-text ul { color: var(--muted); padding-left: 18px; margin-bottom: 12px; }
.row-text li { margin-bottom: 6px; }
.row-text li strong, .row-text p strong { color: var(--text); font-weight: 600; }
.row-text .more { font-size: .875rem; font-weight: 600; }
code { font-family: 'SF Mono', 'Fira Code', monospace; font-size: .85em; background: var(--surface); border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; color: var(--text); }

/* ── Screenshots ── */
.shot { margin: 0; }
.shot a { display: block; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: var(--surface); box-shadow: 0 20px 56px rgba(0,0,0,.45); transition: border-color .15s; }
.shot a:hover, .shot a:focus-visible { border-color: var(--accent); }
.shot img { display: block; width: 100%; height: auto; }
.shot figcaption { color: var(--muted); font-size: .85rem; margin-top: 10px; line-height: 1.6; }
.shot figcaption strong { color: var(--text); font-weight: 600; }
.shot.plain a { box-shadow: none; }
.shot-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 24px; }
.shot-grid .wide { grid-column: 1 / -1; }
.shot-stack { display: grid; gap: 20px; }
.demo-note { color: var(--muted); font-size: .8rem; margin-top: 20px; }

/* ── Home: explore cards ── */
.explore-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
.explore-card { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; color: var(--text); transition: border-color .15s, transform .15s; }
.explore-card:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-2px); }
.explore-card img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; object-position: top left; border-bottom: 1px solid var(--border); }
.explore-card .body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.explore-card .tag { font-size: .7rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.explore-card h3 { font-size: 1.05rem; color: #fff; }
.explore-card p { font-size: .875rem; color: var(--muted); }
.explore-card .go { margin-top: auto; padding-top: 8px; font-size: .85rem; font-weight: 600; color: var(--accent); }

/* ── Home: the loop ── */
.loop { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; counter-reset: step; }
.loop-step { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px; position: relative; }
.loop-step::before { counter-increment: step; content: counter(step); display: inline-flex; width: 24px; height: 24px; border-radius: 50%; align-items: center; justify-content: center; font-size: .75rem; font-weight: 700; color: #000; background: var(--accent); margin-bottom: 10px; }
.loop-step h3 { font-size: .95rem; color: #fff; margin-bottom: 6px; }
.loop-step p { font-size: .8rem; color: var(--muted); line-height: 1.55; }
.loop-step a { font-size: .8rem; font-weight: 600; }

/* ── Prev / next ── */
.page-nav { display: flex; justify-content: space-between; gap: 16px; padding: 40px 0 0; border-top: 1px solid var(--border); margin-top: 24px; }
.page-nav a { display: flex; flex-direction: column; gap: 2px; padding: 14px 18px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); color: var(--text); min-width: 220px; }
.page-nav a:hover { border-color: var(--accent); text-decoration: none; }
.page-nav a span { font-size: .75rem; color: var(--muted); }
.page-nav a.next { text-align: right; margin-left: auto; }

/* ── Lightbox ── */
.lightbox { position: fixed; inset: 0; z-index: 200; background: rgba(0,0,0,.92); display: none; align-items: center; justify-content: center; padding: 32px; cursor: zoom-out; }
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 100%; border-radius: 8px; box-shadow: 0 24px 80px rgba(0,0,0,.6); }
.lightbox p { position: absolute; bottom: 12px; left: 0; right: 0; text-align: center; color: var(--muted); font-size: .85rem; }

@media (max-width: 1080px) {
  nav .inner { gap: 16px; }
  .nav-logo { flex-shrink: 0; }
  .nav-links { min-width: 0; overflow-x: auto; scrollbar-width: none; }
  .nav-links a { flex-shrink: 0; }
}
@media (max-width: 900px) {
  .feature-row, .feature-row.flip { grid-template-columns: 1fr; gap: 24px; }
  .feature-row.flip .row-text { order: 0; }
  .loop { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {
  .shot-grid { grid-template-columns: 1fr; }
  .loop { grid-template-columns: 1fr; }
  .page-nav { flex-direction: column; }
  .page-nav a.next { margin-left: 0; }
}

/* ── Deploy guides ── */
.platform-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.platform-nav a { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); color: var(--text); font-size: .875rem; font-weight: 500; }
.platform-nav a:hover { border-color: var(--accent); text-decoration: none; }
.platform-nav a span { color: var(--muted); font-weight: 400; }
.steps { list-style: none; counter-reset: step; display: flex; flex-direction: column; gap: 12px; max-width: 820px; }
.steps > li { counter-increment: step; position: relative; padding: 16px 20px 16px 60px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; font-size: .9375rem; }
.steps > li::before { content: counter(step); position: absolute; left: 18px; top: 16px; width: 26px; height: 26px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: .8rem; font-weight: 700; color: #000; background: var(--accent); }
.steps > li h3 { font-size: 1rem; color: #fff; margin-bottom: 4px; }
.steps > li p, .steps > li ul { color: var(--muted); font-size: .875rem; }
.steps > li p + p, .steps > li p + ul, .steps > li ul + p { margin-top: 8px; }
.steps > li ul { padding-left: 18px; }
.steps > li li { margin-top: 4px; }
.steps strong, .trouble strong { color: var(--text); font-weight: 600; }
.steps .code-block { margin-top: 10px; padding: 12px 16px; font-size: .78rem; }
.ui { display: inline-block; padding: 0 6px; border: 1px solid var(--border); border-radius: 4px; background: var(--bg); color: var(--text); font-size: .8125rem; white-space: nowrap; }
.log { color: var(--text); white-space: pre-wrap; word-break: break-word; }
.log .hl { color: var(--accent); font-weight: 700; }
.variant { margin-top: 10px; padding: 10px 14px; border-left: 3px solid var(--blue); background: rgba(96,165,250,.06); border-radius: 0 8px 8px 0; }
.variant strong { color: var(--blue); }
.trouble { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.trouble div { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; }
.trouble h3 { font-size: .9375rem; color: #fff; margin-bottom: 6px; }
.trouble p { font-size: .8125rem; color: var(--muted); }
@media (max-width: 680px) { .steps > li { padding: 52px 16px 16px; } .steps > li::before { left: 16px; top: 16px; } .ui { white-space: normal; } }