@import url("tokens.css");

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

html { scroll-behavior: smooth; color-scheme: dark; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--ink-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}
a:hover { color: var(--accent); border-bottom-color: var(--accent); }

code, kbd, pre, .mono {
  font-family: var(--mono);
}

code {
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 0.05em 0.35em;
  border-radius: var(--radius);
  font-size: 0.9em;
}

/* ── shared buttons ───────────────────────────────────── */
.btn-primary,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  padding: 0.7rem 1.25rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: filter 120ms var(--ease), background 120ms var(--ease);
}
.btn-primary:hover,
.button:hover {
  filter: brightness(1.06);
  color: var(--accent-ink);
  border-bottom-color: var(--accent);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: var(--ink-dim);
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}
.btn-ghost:hover {
  color: var(--ink);
  border-color: var(--ink-dim);
  border-bottom-color: var(--ink-dim);
}

/* ── landing ──────────────────────────────────────────── */
.landing-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem 0;
}
.landing-nav a {
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--grey);
  border: none;
}
.landing-nav a:hover { color: var(--ink); border: none; }

.hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  opacity: 0;
  transform: translateY(10px);
  animation: heroIn 700ms var(--ease) 80ms forwards;
}

@keyframes heroIn {
  to { opacity: 1; transform: translateY(0); }
}

.wordmark {
  font-family: var(--sans);
  font-size: clamp(3.2rem, 10vw, 6.5rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 0.92;
  color: var(--ink);
  margin-bottom: 1.25rem;
}

.hero-line {
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  font-weight: 400;
  color: var(--ink-dim);
  max-width: 28rem;
  margin-bottom: 1.75rem;
  line-height: 1.45;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2.25rem;
}

.hero-stage {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background: var(--surface);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  max-height: min(62vh, 640px);
}

.hero-stage iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: var(--bg);
}

.hero-stage-link {
  position: absolute;
  inset: 0;
  z-index: 2;
  border: none;
  background: transparent;
  cursor: pointer;
}
.hero-stage-link:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: -2px;
}

.hero-stage-label {
  position: absolute;
  left: 0.85rem;
  bottom: 0.75rem;
  z-index: 3;
  pointer-events: none;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--grey);
  background: rgba(10, 10, 10, 0.75);
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* below fold */
.landing-main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem 2rem;
}

.landing-section {
  padding: 3.5rem 0;
  border-top: 1px solid var(--line);
}

.landing-section h2 {
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey);
  margin-bottom: 1.5rem;
}

.pattern-block {
  font-family: var(--mono);
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  line-height: 1.85;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 1.4rem 1.5rem;
  overflow-x: auto;
}
.pattern-block .cm { color: var(--grey); }
.pattern-block .ok { color: var(--accent); }

.install-block {
  font-family: var(--mono);
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
}
.install-block .prompt { color: var(--accent); user-select: none; }

.landing-footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3.5rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: baseline;
}
.landing-footer .philosophy {
  font-size: 0.95rem;
  color: var(--ink-dim);
  max-width: 28rem;
}
.landing-footer .meta {
  font-size: 0.8rem;
  color: var(--grey);
  font-family: var(--mono);
}
.landing-footer .meta a { color: var(--grey); border: none; }
.landing-footer .meta a:hover { color: var(--accent); }

@media (max-width: 720px) {
  .hero { padding-top: 1.25rem; }
  .hero-stage { aspect-ratio: 4 / 5; max-height: 70vh; }
  .landing-footer { flex-direction: column; }
}