:root {
  --bg-app:          #1a1a1a;
  --bg-sidebar:      #1c1c1e;
  --bg-canvas-area:  #242424;
  --bg-input:        #2c2c2e;
  --text-primary:    #f2f2f7;
  --text-secondary:  #8e8e93;
  --border:          #38383a;
  --btn-bg:          #3a3a3c;
  --btn-hover:       #48484a;
  --accent:          #6366f1;
  --accent-hover:    #4f46e5;
  --accent-soft:     #818cf8;
  --accent-deep:     #7c3aed;
  --accent-pale:     #a78bfa;
  --danger:          #ff453a;
  --scrim:           rgba(0, 0, 0, 0.60);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

[data-theme="light"] {
  --bg-app:         #f2f2f7;
  --bg-sidebar:     #ffffff;
  --bg-canvas-area: #e5e5ea;
  --bg-input:       #e5e5ea;
  --text-primary:   #1c1c1e;
  --text-secondary: #8e8e93;
  --border:         #d1d1d6;
  --accent:         #6366f1;
  --btn-bg:         #e5e5ea;
  --btn-hover:      #d1d1d6;
}

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

body {
  font-family: var(--font);
  background:
    radial-gradient(ellipse 900px 500px at 15% -5%, rgba(124,58,237,0.14), transparent 60%),
    radial-gradient(ellipse 700px 500px at 90% 10%, rgba(99,102,241,0.10), transparent 60%),
    #0b0b0e;
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

html[data-theme="light"] body {
  background:
    radial-gradient(ellipse 900px 500px at 15% -5%, rgba(124,58,237,0.09), transparent 60%),
    radial-gradient(ellipse 700px 500px at 90% 10%, rgba(99,102,241,0.06), transparent 60%),
    #f2f2f7;
}

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

/* --- Top nav ------------------------------------------------------------ */
.nav {
  max-width: 1080px;
  margin: 0 auto;
  padding: 22px 32px 0;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 15px; font-weight: 600; letter-spacing: -0.2px;
  color: var(--text-primary);
}
.nav-links {
  display: flex; gap: 24px; align-items: center;
  font-size: 13px; color: var(--text-secondary);
}
.nav-links a { transition: color .15s; }
.nav-links a:hover { color: var(--text-primary); }
.nav-cta {
  padding: 8px 14px;
  border-radius: 8px;
  background: linear-gradient(135deg, #6366f1, #7c3aed);
  color: #fff !important;
  font-weight: 600;
  font-size: 13px;
  box-shadow: 0 2px 8px rgba(99,102,241,0.25);
}
.nav-cta:hover { box-shadow: 0 4px 14px rgba(99,102,241,0.4); }

/* --- Page container ----------------------------------------------------- */
.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px 96px;
}

/* --- Hero --------------------------------------------------------------- */
.hero {
  padding: 72px 0 56px;
  text-align: center;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.8px;
  color: var(--accent-soft);
  padding: 6px 12px;
  border-radius: 20px;
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.2);
  margin-bottom: 24px;
}
html[data-theme="light"] .hero-eyebrow {
  color: var(--accent-hover);
  background: rgba(99,102,241,0.08);
  border-color: rgba(99,102,241,0.2);
}
.hero-eyebrow::before {
  content: ""; display: block;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.hero h1 {
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -1.6px;
  line-height: 1.05;
  margin: 0 auto 20px;
  max-width: 820px;
  color: var(--text-primary);
  text-wrap: balance;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, #a78bfa 10%, #6366f1 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 32px;
  text-wrap: pretty;
}

/* Hero actions */
.hero-actions {
  display: flex; justify-content: center; gap: 8px; align-items: center;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.hero-meta {
  display: flex; gap: 18px; align-items: center; justify-content: center;
  font-size: 12px; color: var(--text-secondary);
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.hero-meta-item { display: flex; align-items: center; gap: 6px; }
.hero-meta-item svg { color: var(--accent-soft); }
.hero-meta-dot {
  width: 3px; height: 3px; border-radius: 50%;
  background: var(--text-secondary); opacity: 0.5;
}

/* --- Aesthetic moodboard grid ------------------------------------------- */
.am-grid {
  max-width: 520px;
  margin: 40px auto 0;
  display: grid;
  grid-template-columns: 1fr 1.15fr 1fr;
  gap: 8px;
  align-items: stretch;
}
.am-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
}
.am-col-side > .am-cell { aspect-ratio: 1 / 1; }
.am-col-mid > .am-cell { flex: 0.78 1 0; min-height: 0; }
.am-col-mid > .am-cell.center { flex: 1.44 1 0; }
.am-cell {
  overflow: hidden;
  border-radius: 6px;
  background: #efe9e0;
  box-shadow: 0 10px 30px rgba(0,0,0,0.22);
  position: relative;
}
html[data-theme="light"] .am-cell { box-shadow: 0 6px 20px rgba(0,0,0,0.08); }
.am-cell img {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
  filter: sepia(0.14) saturate(0.8) contrast(0.98) brightness(1.02);
}
.am-cell.center {
  border-radius: 8px;
  box-shadow: 0 14px 40px rgba(0,0,0,0.3);
}
html[data-theme="light"] .am-cell.center { box-shadow: 0 10px 28px rgba(0,0,0,0.12); }
.am-cell.swatch-cream {
  background: linear-gradient(135deg, #e8dcc5 0%, #d1b995 100%);
}
.am-cell.swatch-linen {
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.18), rgba(255,255,255,0.18) 1px, transparent 1px, transparent 3px),
    repeating-linear-gradient(-45deg, rgba(120,95,65,0.1), rgba(120,95,65,0.1) 1px, transparent 1px, transparent 3px),
    #efe4cd;
}
.am-cell.swatch-sage {
  background: linear-gradient(135deg, #c8cdb4 0%, #a8b094 100%);
}
.am-cell.swatch-cream img,
.am-cell.swatch-linen img,
.am-cell.swatch-sage img { display: none; }
.am-cell.word {
  background: #faf4e8;
  display: flex; align-items: center; justify-content: center;
  color: #7a6a4e;
  font-family: 'Georgia', serif;
  font-style: italic;
  font-size: 18px;
  letter-spacing: 0.3px;
  text-align: center;
  line-height: 1.1;
  padding: 10px;
}
.am-cell.word img { display: none; }

/* --- Section header ----------------------------------------------------- */
.section { padding: 64px 0 16px; }
.section-eyebrow {
  font-size: 10px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 1px;
  color: var(--accent-soft);
  margin-bottom: 12px;
}
.section h2 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.8px;
  line-height: 1.15;
  margin: 0 0 14px;
  color: var(--text-primary);
  text-wrap: balance;
  max-width: 720px;
}
.section-sub {
  font-size: 16px;
  line-height: 1.55;
  color: var(--text-secondary);
  margin: 0 0 40px;
  max-width: 620px;
  text-wrap: pretty;
}

/* --- Features grid ------------------------------------------------------ */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.feature {
  background: rgba(30,30,35,0.5);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 14px;
  padding: 22px;
  transition: border-color .15s, background .15s;
}
html[data-theme="light"] .feature {
  background: #ffffff;
  border: 1px solid rgba(0,0,0,0.05);
}
.feature:hover { border-color: rgba(99,102,241,0.25); }
.feature-icon {
  width: 34px; height: 34px;
  border-radius: 8px;
  background: rgba(99,102,241,0.12);
  color: var(--accent-soft);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
}
html[data-theme="light"] .feature-icon {
  background: rgba(99,102,241,0.08);
  color: var(--accent);
}
.feature h3 {
  font-size: 15px; font-weight: 600;
  margin: 0 0 6px;
  color: var(--text-primary);
  letter-spacing: -0.2px;
}
.feature p {
  font-size: 13px; line-height: 1.55;
  color: var(--text-secondary);
  margin: 0;
}
.feature-kbd {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  padding: 1px 6px;
  margin-top: 8px;
}
html[data-theme="light"] .feature-kbd {
  background: rgba(0,0,0,0.04);
  border-color: rgba(0,0,0,0.08);
  color: var(--text-primary);
}

/* --- Use cases ---------------------------------------------------------- */
.usecases {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.usecase {
  background: rgba(30,30,35,0.5);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 18px;
}
html[data-theme="light"] .usecase {
  background: #ffffff;
  border: 1px solid rgba(0,0,0,0.05);
}
.usecase-tag {
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.8px; text-transform: uppercase;
  color: var(--accent-soft);
  margin-bottom: 8px;
}
html[data-theme="light"] .usecase-tag { color: var(--accent); }
.usecase h3 {
  font-size: 14px; font-weight: 600;
  margin: 0 0 6px;
  color: var(--text-primary);
  letter-spacing: -0.2px;
}
.usecase p {
  font-size: 12px; line-height: 1.5;
  color: var(--text-secondary);
  margin: 0;
}

/* --- Steps (How it works) ----------------------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.step {
  background: rgba(30,30,35,0.5);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px;
  padding: 24px;
  position: relative;
}
html[data-theme="light"] .step {
  background: #ffffff;
  border: 1px solid rgba(0,0,0,0.05);
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}
.step-num {
  font-size: 10px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.8px;
  color: var(--accent-soft);
  margin-bottom: 14px;
}
.step-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(99,102,241,0.12);
  color: var(--accent-soft);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
html[data-theme="light"] .step-icon {
  background: rgba(99,102,241,0.08);
  color: var(--accent);
}
.step h3 {
  font-size: 16px; font-weight: 600;
  margin: 0 0 8px;
  color: var(--text-primary);
  letter-spacing: -0.2px;
}
.step p {
  font-size: 13px; line-height: 1.55;
  color: var(--text-secondary);
  margin: 0;
}

/* --- FAQ ---------------------------------------------------------------- */
.faq {
  display: flex; flex-direction: column;
  gap: 10px;
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: rgba(30,30,35,0.5);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 12px;
  overflow: hidden;
}
html[data-theme="light"] .faq-item {
  background: #ffffff;
  border: 1px solid rgba(0,0,0,0.05);
}
.faq-item summary {
  padding: 18px 22px;
  font-size: 15px; font-weight: 600;
  letter-spacing: -0.2px;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "";
  width: 10px; height: 10px;
  border-right: 1.5px solid var(--text-secondary);
  border-bottom: 1.5px solid var(--text-secondary);
  transform: rotate(45deg);
  transition: transform .2s;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(-135deg); }
.faq-item p {
  margin: 0;
  padding: 0 22px 20px;
  font-size: 14px; line-height: 1.6;
  color: var(--text-secondary);
}
.faq-item p a { color: var(--accent-soft); font-weight: 500; }
html[data-theme="light"] .faq-item p a { color: var(--accent-hover); }

/* --- Final CTA ---------------------------------------------------------- */
.final-cta {
  margin-top: 64px;
  padding: 56px 32px;
  text-align: center;
  background:
    radial-gradient(ellipse at center, rgba(99,102,241,0.15), transparent 60%),
    linear-gradient(135deg, rgba(30,30,35,0.6), rgba(30,30,35,0.4));
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: 20px;
}
html[data-theme="light"] .final-cta {
  background:
    radial-gradient(ellipse at center, rgba(99,102,241,0.1), transparent 60%),
    #ffffff;
  border: 1px solid rgba(99,102,241,0.2);
}
.final-cta h2 {
  font-size: 36px; font-weight: 700;
  letter-spacing: -0.8px;
  margin: 0 0 12px;
  color: var(--text-primary);
  text-wrap: balance;
}
.final-cta p {
  font-size: 16px; color: var(--text-secondary);
  margin: 0 0 28px;
  max-width: 520px; margin-left: auto; margin-right: auto;
}
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 26px;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, #6366f1, #7c3aed);
  color: #fff !important;
  font-family: var(--font);
  font-size: 15px; font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(99,102,241,0.35);
  transition: transform .1s, box-shadow .15s;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(99,102,241,0.5); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 22px;
  border-radius: 10px;
  font-size: 14px; font-weight: 500;
  color: var(--text-secondary);
  margin-left: 8px;
}
.btn-secondary:hover { color: var(--text-primary); }

/* --- Footer ------------------------------------------------------------- */
.footer {
  max-width: 1080px;
  margin: 48px auto 0;
  padding: 32px 32px 40px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--text-secondary);
}
html[data-theme="light"] .footer { border-top: 1px solid rgba(0,0,0,0.06); }
.footer-links { display: flex; gap: 20px; }
.footer-links a:hover { color: var(--text-primary); }

/* --- Theme toggle ------------------------------------------------------- */
.theme-toggle {
  position: fixed;
  bottom: 20px; right: 20px;
  z-index: 250;
  width: 40px; height: 40px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(30,30,35,0.6);
  backdrop-filter: blur(20px);
  color: #a1a1a6;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: color .15s, background .15s;
}
.theme-toggle:hover { color: var(--accent-soft); background: rgba(30,30,35,0.8); }
html[data-theme="light"] .theme-toggle {
  background: rgba(255,255,255,0.85);
  border: 1px solid rgba(0,0,0,0.06);
  color: #3a3a3c;
  box-shadow: 0 4px 14px rgba(0,0,0,0.06);
}
html[data-theme="light"] .theme-toggle:hover { color: var(--accent-hover); background: #ffffff; }
.theme-toggle .tm-sun { display: none; }
.theme-toggle .tm-moon { display: block; }
html[data-theme="light"] .theme-toggle .tm-sun { display: block; }
html[data-theme="light"] .theme-toggle .tm-moon { display: none; }

/* --- Responsive --------------------------------------------------------- */
@media (max-width: 820px) {
  .nav-links { gap: 14px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .hero { padding: 48px 0 40px; }
  .hero h1 { font-size: 38px; letter-spacing: -1px; }
  .hero-sub { font-size: 15px; }
  .am-grid { max-width: 400px; margin-top: 28px; gap: 5px; }
  .am-col { gap: 5px; }
  .am-cell.word { font-size: 14px; }
  .section h2 { font-size: 26px; }
  .features { grid-template-columns: 1fr; }
  .usecases { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; }
  .final-cta { padding: 40px 24px; }
  .final-cta h2 { font-size: 26px; }
  .page { padding: 0 20px 72px; }
  .nav { padding: 18px 20px 0; }
}