:root {
  color-scheme: dark;
  --landing-bg: #f5ecdf;
  --landing-surface: rgba(255, 251, 245, 0.9);
  --landing-surface-strong: rgba(255, 247, 236, 0.96);
  --landing-ink: #1d1a15;
  --landing-muted: #5d564d;
  --landing-line: rgba(50, 35, 14, 0.16);
  --landing-line-strong: rgba(50, 35, 14, 0.24);
  --landing-accent: #c55a22;
  --landing-accent-strong: #8f3616;
  --landing-accent-soft: rgba(197, 90, 34, 0.14);
  --landing-cool: #215f58;
  --landing-shadow: 0 30px 70px rgba(37, 24, 6, 0.12);
  --landing-radius-lg: 28px;
  --landing-radius-md: 20px;
  --landing-radius-sm: 14px;
}

html.theme-dark,
body.theme-dark {
  color-scheme: dark;
  --landing-bg: #12100d;
  --landing-surface: rgba(31, 27, 22, 0.88);
  --landing-surface-strong: rgba(38, 33, 28, 0.96);
  --landing-ink: #f8f1e6;
  --landing-muted: #c0b6a7;
  --landing-line: rgba(240, 220, 190, 0.12);
  --landing-line-strong: rgba(240, 220, 190, 0.2);
  --landing-accent: #ff8d53;
  --landing-accent-strong: #ffb089;
  --landing-accent-soft: rgba(255, 141, 83, 0.16);
  --landing-cool: #7fd4c8;
  --landing-shadow: 0 30px 70px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Space Grotesk", sans-serif;
  color: var(--landing-ink);
  background:
    radial-gradient(circle at top left, rgba(255, 211, 167, 0.45), transparent 32%),
    radial-gradient(circle at top right, rgba(52, 116, 109, 0.18), transparent 28%),
    linear-gradient(180deg, color-mix(in oklab, var(--landing-bg) 88%, white 12%), var(--landing-bg));
}

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

.landing-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.landing-hero,
.landing-section {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--landing-line);
  border-radius: var(--landing-radius-lg);
  background: var(--landing-surface);
  box-shadow: var(--landing-shadow);
  backdrop-filter: blur(18px);
}

.landing-hero {
  padding: 28px;
}

.landing-hero::before,
.landing-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), transparent 34%),
    linear-gradient(325deg, rgba(33, 95, 88, 0.08), transparent 24%);
}

.landing-topbar,
.landing-hero-grid,
.landing-section-heading,
.landing-step-grid,
.landing-surface-grid,
.landing-principles-grid,
.landing-final-cta {
  position: relative;
  z-index: 1;
}

.landing-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 42px;
}

.landing-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.landing-brand-mark {
  display: inline-grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--landing-accent), var(--landing-cool));
  color: #fffdf8;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.landing-kicker,
.landing-hero-eyebrow,
.landing-stage-kicker,
.landing-step-card span {
  margin: 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--landing-accent);
}

.landing-brand h1,
.landing-section-heading h2,
.landing-stage-item h2,
.landing-step-card h3,
.landing-surface-card h3,
.landing-principle-card h3 {
  margin: 0;
}

.landing-brand h1 {
  max-width: 14ch;
  font-size: clamp(2.7rem, 4vw, 4.8rem);
  line-height: 0.95;
}

.landing-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.landing-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--landing-muted);
}

.landing-nav a:hover {
  border-color: var(--landing-line-strong);
  background: rgba(255, 255, 255, 0.26);
}

.landing-nav-cta {
  background: var(--landing-ink);
  color: var(--landing-bg) !important;
}

.landing-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 24px;
  align-items: start;
}

.landing-hero-copy {
  display: grid;
  gap: 18px;
}

.landing-hero-text,
.landing-section-heading p,
.landing-stage-item p,
.landing-step-card p,
.landing-surface-card p,
.landing-principle-card p,
.landing-session-note {
  margin: 0;
  line-height: 1.55;
  color: var(--landing-muted);
}

.landing-cta-row,
.landing-final-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.landing-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 14px;
  border: 1px solid var(--landing-line-strong);
  font-weight: 700;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.landing-btn:hover {
  transform: translateY(-1px);
}

.landing-btn-primary {
  background: linear-gradient(135deg, var(--landing-accent), var(--landing-accent-strong));
  color: #fff7ef;
  border-color: transparent;
}

.landing-btn-secondary {
  background: rgba(255, 255, 255, 0.34);
}

.landing-proof-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
  color: var(--landing-ink);
}

.landing-proof-list li::marker {
  color: var(--landing-cool);
}

.landing-stage-card {
  display: grid;
  gap: 18px;
  padding: 22px;
  border-radius: var(--landing-radius-md);
  border: 1px solid var(--landing-line);
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--landing-surface-strong) 78%, transparent 22%), var(--landing-surface-strong));
}

.landing-stage-list {
  display: grid;
  gap: 16px;
}

.landing-stage-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 14px;
  border-radius: 16px;
  background: var(--landing-accent-soft);
  border: 1px solid color-mix(in oklab, var(--landing-accent) 20%, var(--landing-line) 80%);
}

.landing-stage-number {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: color-mix(in oklab, var(--landing-accent) 18%, transparent 82%);
  color: var(--landing-accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.9rem;
}

.landing-section {
  margin-top: 22px;
  padding: 26px;
}

.landing-section-accent {
  background:
    linear-gradient(135deg, color-mix(in oklab, var(--landing-surface) 75%, var(--landing-accent-soft) 25%), var(--landing-surface));
}

.landing-section-heading {
  display: grid;
  gap: 10px;
  margin-bottom: 22px;
  max-width: 760px;
}

.landing-section-heading h2 {
  font-size: clamp(1.7rem, 2vw, 2.4rem);
  line-height: 1.05;
}

.landing-step-grid,
.landing-surface-grid,
.landing-principles-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.landing-surface-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.landing-principles-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 24px;
}

.landing-step-card,
.landing-surface-card,
.landing-principle-card {
  display: grid;
  gap: 10px;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid var(--landing-line);
  background: var(--landing-surface-strong);
}

.landing-surface-card,
.landing-principle-card {
  min-height: 180px;
}

@media (max-width: 980px) {
  .landing-topbar,
  .landing-hero-grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .landing-topbar {
    gap: 18px;
  }

  .landing-step-grid,
  .landing-surface-grid,
  .landing-principles-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .landing-shell {
    width: min(100% - 20px, 1200px);
    padding: 12px 0 24px;
  }

  .landing-hero,
  .landing-section {
    padding: 18px;
    border-radius: 22px;
  }

  .landing-brand {
    align-items: flex-start;
  }

  .landing-brand h1 {
    font-size: clamp(2rem, 11vw, 3rem);
  }

  .landing-step-grid,
  .landing-surface-grid,
  .landing-principles-grid {
    grid-template-columns: 1fr;
  }

  .landing-nav {
    gap: 8px;
  }

  .landing-nav a,
  .landing-btn {
    width: 100%;
  }
}