/* orc landing page — terminal-first, wave-based orchestration. */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

html[data-theme="dark"] {
  --color-bg: #0c0a09;
  --color-ink: #e7e5e4;
  --color-accent: #a78bfa;
  --color-accent-soft: rgba(167, 139, 250, 0.12);
  --color-border: color-mix(in srgb, var(--color-ink) 14%, transparent);
  --color-bg-soft: color-mix(in srgb, var(--color-ink) 6%, var(--color-bg));
  --color-code-bg: color-mix(in srgb, var(--color-ink) 7%, var(--color-bg));
  --color-ink-muted: color-mix(in srgb, var(--color-ink) 74%, transparent);
  --color-ink-faint: color-mix(in srgb, var(--color-ink) 54%, transparent);
}

html[data-theme="light"] {
  --color-bg: #fafaf9;
  --color-ink: #0c0a09;
  --color-accent: #7c3aed;
  --color-accent-soft: rgba(124, 58, 237, 0.12);
  --color-border: color-mix(in srgb, var(--color-ink) 14%, transparent);
  --color-bg-soft: color-mix(in srgb, var(--color-ink) 4%, var(--color-bg));
  --color-code-bg: color-mix(in srgb, var(--color-ink) 6%, var(--color-bg));
  --color-ink-muted: color-mix(in srgb, var(--color-ink) 70%, transparent);
  --color-ink-faint: color-mix(in srgb, var(--color-ink) 52%, transparent);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: var(--line-relaxed);
  transition: background var(--transition), color var(--transition);
}

a {
  color: inherit;
  text-decoration: none;
}

code {
  font-family: var(--font-mono);
  font-size: 0.94em;
}

.container {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.theme-toggle {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: 50;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: linear-gradient(180deg, transparent, var(--color-bg-soft));
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--color-accent) 10%, transparent),
    0 16px 40px rgba(0, 0, 0, 0.20);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform 140ms ease, background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.theme-toggle:hover {
  transform: translateY(-1px) scale(1.04);
  border-color: color-mix(in srgb, var(--color-accent) 38%, var(--color-border));
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--color-accent) 18%, transparent),
    0 18px 52px rgba(0, 0, 0, 0.22);
}

.theme-toggle svg {
  width: 1.12rem;
  height: 1.12rem;
  fill: none;
  stroke: var(--color-ink-muted);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke var(--transition);
}

.theme-toggle .icon-moon { display: block; }
.theme-toggle .icon-sun  { display: none; }
html[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
html[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }

main {
  position: relative;
  isolation: isolate;
}

/* Subtle “parallel lanes” background. Text-first; no images. */
main::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1100px 420px at 18% 0%, var(--color-accent-soft), transparent 55%),
    radial-gradient(900px 320px at 88% 15%, color-mix(in srgb, var(--color-accent-soft) 70%, transparent), transparent 60%),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 22px,
      color-mix(in srgb, var(--color-ink) 6%, transparent) 23px,
      transparent 24px
    );
  opacity: 0.9;
  pointer-events: none;
}

.hero {
  padding: var(--space-24) 0 var(--space-12);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-10);
  align-items: start;
}

.kicker {
  font-family: var(--font-mono);
  font-size: var(--scale-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: var(--space-5);
}

.hero h1 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-weight: 650;
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.tagline {
  margin: 0 0 var(--space-4);
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2.4vw, 1.45rem);
  color: var(--color-ink-muted);
  line-height: var(--line-normal);
}

.lede {
  margin: 0 0 var(--space-8);
  max-width: 68ch;
  color: var(--color-ink-muted);
}

.install {
  border: 1px solid color-mix(in srgb, var(--color-accent) 48%, var(--color-border));
  background: linear-gradient(180deg, var(--color-bg-soft), transparent);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--color-accent) 16%, transparent),
    0 0 28px color-mix(in srgb, var(--color-accent) 14%, transparent);
}

.install-label {
  font-family: var(--font-mono);
  font-size: var(--scale-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: var(--space-3);
}

.install-code {
  display: block;
  width: 100%;
  background: var(--color-code-bg);
  border: 1px solid color-mix(in srgb, var(--color-accent) 22%, var(--color-border));
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-4);
  overflow-x: auto;
  max-width: 100%;
  color: var(--color-ink);
}

.install-hint {
  margin-top: var(--space-3);
  color: var(--color-ink-faint);
  font-size: var(--scale-sm);
}

.install-hint code {
  color: var(--color-ink);
}

.cta-row {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  margin-top: var(--space-7);
  flex-wrap: wrap;
}

.cta {
  font-family: var(--font-mono);
  border: 1px solid color-mix(in srgb, var(--color-accent) 42%, var(--color-border));
  background: color-mix(in srgb, var(--color-accent-soft) 80%, transparent);
  padding: 0.6rem 0.9rem;
  border-radius: 999px;
  color: var(--color-ink);
  transition: transform 140ms ease, box-shadow var(--transition), border-color var(--transition), background var(--transition);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--color-accent) 8%, transparent);
}

.cta:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--color-accent) 64%, var(--color-border));
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--color-accent) 16%, transparent),
    0 0 28px color-mix(in srgb, var(--color-accent) 12%, transparent);
}

.cta-ghost {
  background: transparent;
}

.hero-ascii {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--color-bg-soft) 70%, transparent));
}

.ascii-title {
  font-family: var(--font-mono);
  font-size: var(--scale-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: var(--space-3);
}

.wave-diagram {
  margin: 0;
  padding: var(--space-4);
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--color-accent) 18%, var(--color-border));
  background: var(--color-code-bg);
  overflow-x: auto;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--color-accent) 10%, transparent);
}

.wave-diagram code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.35;
  color: var(--color-ink);
}

.wave-line {
  display: block;
  opacity: 0;
  transform: translateY(-4px);
  animation: wave-in 650ms cubic-bezier(0.2, 0.9, 0.25, 1) forwards;
}

.wave-line.l1 { animation-delay: 120ms; }
.wave-line.l2 { animation-delay: 220ms; }
.wave-line.l3 { animation-delay: 320ms; }
.wave-line.l4 { animation-delay: 520ms; }
.wave-line.l5 { animation-delay: 820ms; }
.wave-line.l6 { animation-delay: 920ms; }
.wave-line.l7 { animation-delay: 1020ms; }

@keyframes wave-in {
  from { opacity: 0; transform: translateY(-4px); filter: blur(0.8px); }
  to   { opacity: 1; transform: translateY(0);  filter: blur(0); }
}

@media (prefers-reduced-motion: reduce) {
  .wave-line {
    opacity: 1;
    transform: none;
    animation: none;
  }
  .cta, .theme-toggle { transition: none; }
}

.ascii-sub {
  margin-top: var(--space-4);
  color: var(--color-ink-faint);
  font-size: var(--scale-sm);
}

.why {
  padding: var(--space-10) 0 var(--space-12);
  border-top: 1px solid var(--color-border);
}

.why-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-8);
  align-items: start;
}

.why h2 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--scale-2xl);
  letter-spacing: -0.02em;
}

.why-lede {
  margin: 0;
  color: var(--color-ink-muted);
  max-width: 60ch;
}

.why-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.why-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  background: color-mix(in srgb, var(--color-accent-soft) 30%, transparent);
}

.why-title {
  font-family: var(--font-mono);
  color: var(--color-ink);
  margin-bottom: var(--space-2);
}

.why-body {
  color: var(--color-ink-muted);
  line-height: var(--line-normal);
}

.whats-here {
  padding: var(--space-10) 0 var(--space-20);
  border-top: 1px solid var(--color-border);
}

.whats-here h2 {
  margin: 0 0 var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--scale-2xl);
  letter-spacing: -0.02em;
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.card {
  display: block;
  border: 1px solid var(--color-border);
  background: transparent;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: 0 0 0 1px transparent;
  transition: transform 140ms ease, box-shadow var(--transition), border-color var(--transition), background var(--transition);
}

.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--color-accent) 52%, var(--color-border));
  background: color-mix(in srgb, var(--color-accent-soft) 50%, transparent);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--color-accent) 10%, transparent),
    0 0 28px color-mix(in srgb, var(--color-accent) 10%, transparent);
}

.card-title {
  font-family: var(--font-mono);
  font-size: var(--scale-lg);
  line-height: var(--line-tight);
  margin-bottom: var(--space-2);
  color: var(--color-ink);
}

.card-body {
  color: var(--color-ink-muted);
  font-size: var(--scale-base);
  line-height: var(--line-normal);
}

.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-8) 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: var(--scale-base);
  font-weight: 650;
}

.footer-muted {
  color: var(--color-ink-muted);
  font-size: var(--scale-sm);
}

.footer-right a {
  font-family: var(--font-mono);
  color: var(--color-ink-muted);
  border-bottom: 1px dashed color-mix(in srgb, var(--color-accent) 28%, transparent);
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
}

.footer-right a:hover {
  color: var(--color-ink);
  border-color: color-mix(in srgb, var(--color-accent) 60%, transparent);
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .why-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 720px) {
  .container { padding: 0 var(--space-4); }
  .hero { padding: var(--space-18) 0 var(--space-10); }
  .cards { grid-template-columns: 1fr; }
}