/* ============================================================
   LANDING — Petals theme
   ============================================================ */

body.landing-body {
  background:
    radial-gradient(1200px circle at 85% -5%, color-mix(in oklab, var(--color-accent) 15%, transparent), transparent 55%),
    radial-gradient(900px circle at -5% 90%, color-mix(in oklab, var(--color-gold) 12%, transparent), transparent 55%),
    var(--color-bg);
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(16px);
  background: color-mix(in oklab, var(--color-bg) 82%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 240ms ease, background 240ms ease;
}
.site-header.scrolled { border-color: var(--color-divider); }

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: var(--space-4);
}
.brand {
  display: flex; align-items: center; gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  color: var(--color-primary);
  letter-spacing: -0.01em;
}
.brand-mark { width: 40px; height: 40px; color: var(--color-primary); }
.brand-name .accent { color: var(--color-accent); font-weight: 500; }

.nav-links { display: flex; gap: var(--space-6); align-items: center; }
.nav-links a { color: var(--color-text-muted); font-size: var(--text-sm); font-weight: 500; }
.nav-links a:hover { color: var(--color-primary); }
.nav-cta {
  padding: var(--space-2) var(--space-5);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-full);
  font-size: var(--text-sm); font-weight: 500;
  box-shadow: var(--shadow-sm);
}
.nav-cta:hover {
  background: var(--color-primary-hover);
  color: var(--color-text-inverse);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
@media (max-width: 720px) { .nav-links a:not(.nav-cta) { display: none; } }

/* Hero */
.hero {
  padding-block: clamp(var(--space-16), 10vw, var(--space-32))
                 clamp(var(--space-12), 8vw, var(--space-24));
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(var(--space-8), 5vw, var(--space-16));
  align-items: center;
}
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary-highlight);
  border: 1px solid color-mix(in oklab, var(--color-primary) 20%, transparent);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--color-primary);
  margin-bottom: var(--space-5);
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-accent) 30%, transparent);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  font-weight: 500;
  letter-spacing: -0.02em;
}
.hero h1 em {
  font-style: italic;
  color: var(--color-accent);
  font-weight: 400;
}
.hero .lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 58ch;
  margin-bottom: var(--space-8);
  line-height: 1.5;
}

.cta-row { display: flex; gap: var(--space-3); flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm); font-weight: 600;
  border: 1px solid transparent;
}
.btn-primary { background: var(--color-primary); color: var(--color-text-inverse); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); box-shadow: var(--shadow-petal); }
.btn-ghost { background: transparent; color: var(--color-primary); border-color: var(--color-border); }
.btn-ghost:hover { background: var(--color-surface); border-color: var(--color-primary); }
.btn-accent { background: var(--color-accent); color: white; }
.btn-accent:hover { background: var(--color-accent-hover); }

.hero-stats {
  display: flex; gap: var(--space-8); margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
}
.hero-stats div { display: flex; flex-direction: column; }
.hero-stats .num {
  font-family: var(--font-display);
  font-size: var(--text-xl); font-weight: 500;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.hero-stats .label {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--color-text-muted);
  letter-spacing: 0.1em; text-transform: uppercase;
  margin-top: 2px;
}

/* Hero visual */
.hero-visual { position: relative; aspect-ratio: 1 / 1; }

/* Sections */
.section { padding-block: clamp(var(--space-16), 8vw, var(--space-24)); }
.section-header { text-align: center; margin-bottom: var(--space-12); }
.section-eyebrow {
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.16em; margin-bottom: var(--space-3);
  display: inline-block;
}
.section h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  max-width: 22ch;
  margin-inline: auto;
  font-weight: 500;
}
.section-header p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin: var(--space-4) auto 0;
}

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }
.step {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  position: relative;
  transition: transform 300ms ease, box-shadow 300ms ease, border-color 300ms ease;
}
.step:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent-highlight);
}
.step-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-4);
}
.step-icon { color: var(--color-primary); margin-bottom: var(--space-4); }
.step h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg); color: var(--color-primary);
  margin-bottom: var(--space-2); font-weight: 500;
}
.step p { color: var(--color-text-muted); font-size: var(--text-sm); }

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-4);
}
.feature {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  transition: transform 300ms ease, box-shadow 300ms ease, border-color 300ms ease;
}
.feature:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent-highlight);
}
.feature-a { grid-column: span 3; }
.feature-b { grid-column: span 3; }
.feature-c, .feature-d, .feature-e { grid-column: span 2; }
@media (max-width: 800px) {
  .features { grid-template-columns: 1fr; }
  .feature { grid-column: 1 / -1 !important; }
}
.feature svg { color: var(--color-accent); margin-bottom: var(--space-4); }
.feature h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg); color: var(--color-primary);
  margin-bottom: var(--space-2); font-weight: 500;
}
.feature p { color: var(--color-text-muted); font-size: var(--text-sm); }
.feature .tag {
  display: inline-block; margin-top: var(--space-4);
  padding: 2px 8px;
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: 10px; font-weight: 600;
  border-radius: var(--radius-sm); letter-spacing: 0.1em;
}

/* KAMO-C explainer */
.kamo-explainer {
  background:
    radial-gradient(circle at 80% 20%, color-mix(in oklab, var(--color-accent) 35%, transparent) 0%, transparent 55%),
    linear-gradient(135deg,
      color-mix(in oklab, var(--color-primary-active) 65%, black) 0%,
      color-mix(in oklab, var(--color-primary) 50%, black) 60%,
      color-mix(in oklab, var(--color-primary-active) 78%, black) 100%);
  color: rgba(255,255,255,.92);
  border-radius: var(--radius-2xl);
  padding: clamp(var(--space-8), 5vw, var(--space-16));
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-6), 4vw, var(--space-12));
  align-items: center;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-petal);
}
@media (max-width: 900px) { .kamo-explainer { grid-template-columns: 1fr; } }
.kamo-explainer .badge {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: color-mix(in oklab, var(--color-gold) 20%, transparent);
  border: 1px solid color-mix(in oklab, var(--color-gold-shine) 40%, transparent);
  color: var(--color-gold-shine);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  margin-bottom: var(--space-5);
}
.kamo-explainer h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  margin-bottom: var(--space-5);
  color: white;
  font-weight: 500;
}
.kamo-explainer p {
  font-size: var(--text-base);
  color: rgba(255,255,255,.85);
  margin-bottom: var(--space-4);
}
.kamo-list { list-style: none; padding: 0; margin-top: var(--space-6); }
.kamo-list li {
  display: flex; align-items: flex-start; gap: var(--space-3);
  padding-block: var(--space-2);
  font-size: var(--text-sm);
  color: rgba(255,255,255,.9);
}
.kamo-list svg {
  color: var(--color-gold-shine);
  flex-shrink: 0; margin-top: 4px;
}

.kamo-diagram { position: relative; }

/* Trust strip */
.trust-strip {
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; gap: var(--space-10);
  padding-block: var(--space-10);
  border-block: 1px solid var(--color-divider);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.trust-strip strong { color: var(--color-primary); font-weight: 600; }
.trust-strip .sep {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--color-accent);
}

/* Theme showcase */
.theme-showcase {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: var(--space-4);
}
@media (max-width: 1000px) {
  .theme-showcase { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 620px) {
  .theme-showcase { grid-template-columns: 1fr 1fr; }
}
.theme-card {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-divider);
  background: var(--color-surface);
  position: relative;
  overflow: hidden;
  transition: transform 300ms ease, box-shadow 300ms ease;
}
.theme-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.theme-card h4 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  color: var(--color-primary);
  margin-bottom: 4px;
  font-weight: 500;
}
.theme-card p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.theme-swatches {
  display: flex; gap: 4px; margin-top: var(--space-4);
}
.theme-swatches span {
  width: 22px; height: 22px; border-radius: 50%;
  border: 1px solid rgba(0,0,0,0.1);
}
.theme-card.active {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}
.theme-card .live-badge {
  position: absolute; top: var(--space-3); right: var(--space-3);
  padding: 2px 6px;
  background: var(--color-accent-highlight);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 9px; font-weight: 700;
  letter-spacing: 0.15em;
  border-radius: var(--radius-sm);
}

/* CTA band */
.cta-band {
  text-align: center;
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  background: var(--color-surface);
  border-block: 1px solid var(--color-divider);
  position: relative; overflow: hidden;
}
.cta-band::before, .cta-band::after {
  content: "";
  position: absolute; width: 300px; height: 300px;
  border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, color-mix(in oklab, var(--color-accent) 15%, transparent), transparent 70%);
}
.cta-band::before { top: -150px; left: -100px; }
.cta-band::after  { bottom: -150px; right: -100px; }

.cta-band .container { position: relative; z-index: 1; }
.cta-band h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  font-weight: 500;
}
.cta-band p {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  max-width: 50ch;
  margin: 0 auto var(--space-8);
}

/* Footer */
.site-footer {
  padding-block: var(--space-12) var(--space-8);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: var(--space-4);
}
.footer-links { display: flex; gap: var(--space-6); }
.footer-links a:hover { color: var(--color-primary); }

/* Falling petals — subtle background animation */
.petal {
  position: fixed; top: -30px;
  width: 14px; height: 14px;
  background: radial-gradient(ellipse at 30% 30%,
    var(--color-accent) 0%,
    var(--color-accent-hover) 60%,
    var(--color-primary) 100%);
  border-radius: 60% 20% 60% 20% / 40% 30% 60% 30%;
  opacity: 0.4;
  animation: fall linear infinite;
  z-index: 0;
  pointer-events: none;
  filter: drop-shadow(0 2px 6px color-mix(in oklab, var(--color-accent) 25%, transparent));
}

@keyframes fall {
  0%   { transform: translateY(-30px) rotate(0deg);   opacity: 0; }
  10%  { opacity: 0.5; }
  90%  { opacity: 0.4; }
  100% { transform: translateY(105vh) rotate(720deg); opacity: 0; }
}