:root {
  /* Lipber — Committed violet (hue ~293). OKLCH tokens, hex fallbacks in DESIGN.md */
  --l-canvas: oklch(8.2% 0.018 293);
  --l-surface: oklch(13% 0.028 293);
  --l-surface-raised: oklch(17% 0.038 293);
  --l-ink: oklch(96% 0.012 293);
  --l-ink-muted: oklch(78% 0.024 293);
  --l-ink-subtle: oklch(74% 0.024 293);
  --l-primary: oklch(59% 0.214 293);
  --l-primary-deep: oklch(48% 0.22 293);
  --l-primary-light: oklch(76% 0.16 293);
  --l-primary-soft: oklch(78% 0.12 293);
  --l-border: oklch(36% 0.07 293 / 0.55);
  --l-border-subtle: oklch(28% 0.045 293 / 0.4);
  --l-glow: oklch(59% 0.214 293 / 0.22);
  --l-trust-bg: oklch(14% 0.035 293 / 0.65);
  --l-feature-icon: oklch(76% 0.16 293);
  --l-link: oklch(78% 0.14 293);
  --l-link-hover: oklch(88% 0.08 293);
  --l-success: oklch(72% 0.14 155);
  --l-font-thai: 'Noto Sans Thai', sans-serif;
  --l-nav-bg: oklch(8.2% 0.018 293 / 0.82);
  --l-pref-bg: oklch(14% 0.035 293 / 0.55);
  --l-card-bg: oklch(13% 0.028 293 / 0.85);
  --l-card-shadow: oklch(5% 0.02 293 / 0.5);
  --l-panel-bg: oklch(14% 0.035 293 / 0.65);
  --l-table-head-bg: oklch(13% 0.028 293 / 0.95);
  --l-section-label: oklch(72% 0.12 293 / 0.75);
  --l-preview-chrome: oklch(6% 0.015 293 / 0.55);
  --l-preview-search: oklch(22% 0.05 293 / 0.45);
  --l-preview-card: oklch(15% 0.032 293 / 0.85);
  --l-on-primary: oklch(98% 0.01 293);
}

/* Light theme */
html:not(.dark) {
  --l-canvas: oklch(98.5% 0.006 293);
  --l-surface: oklch(96% 0.012 293);
  --l-surface-raised: oklch(94% 0.018 293);
  --l-ink: oklch(22% 0.045 293);
  --l-ink-muted: oklch(40% 0.04 293);
  --l-ink-subtle: oklch(50% 0.035 293);
  --l-primary: oklch(52% 0.22 293);
  --l-primary-deep: oklch(46% 0.22 293);
  --l-primary-light: oklch(48% 0.20 293);
  --l-primary-soft: oklch(44% 0.18 293);
  --l-border: oklch(75% 0.04 293 / 0.65);
  --l-border-subtle: oklch(82% 0.025 293 / 0.7);
  --l-glow: oklch(59% 0.214 293 / 0.10);
  --l-trust-bg: oklch(94% 0.015 293);
  --l-feature-icon: oklch(48% 0.20 293);
  --l-link: oklch(46% 0.20 293);
  --l-link-hover: oklch(38% 0.22 293);
  --l-nav-bg: oklch(98.5% 0.006 293 / 0.88);
  --l-pref-bg: oklch(94% 0.012 293 / 0.9);
  --l-card-bg: oklch(100% 0.004 293 / 0.94);
  --l-card-shadow: oklch(50% 0.04 293 / 0.14);
  --l-panel-bg: oklch(96% 0.012 293);
  --l-table-head-bg: oklch(97% 0.01 293 / 0.98);
  --l-section-label: oklch(48% 0.18 293 / 0.9);
  --l-preview-chrome: oklch(94% 0.015 293 / 0.92);
  --l-preview-search: oklch(92% 0.02 293 / 0.96);
  --l-preview-card: oklch(98% 0.008 293 / 0.96);
  --l-on-primary: oklch(98% 0.01 293);
}

html:not(.dark) .noise-bg::before {
  opacity: 0.025;
}

html { scroll-behavior: smooth; }
body {
  background-color: var(--l-canvas);
  color: var(--l-ink);
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* Thai script — applies when lang="th" on element or whole page */
:lang(th) {
  font-family: var(--l-font-thai);
}
html[lang="th"] .font-display {
  font-family: var(--l-font-thai);
}

/* Typography colors */
.text-muted { color: var(--l-ink-muted); }
.text-subtle { color: var(--l-ink-subtle); }
.text-accent { color: var(--l-primary-light); }
.text-display-ink { color: var(--l-ink); }
.text-display-accent { color: var(--l-primary-soft); }

.link-accent {
  color: var(--l-link);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}
.link-accent:hover { color: var(--l-link-hover); }

.link-muted {
  color: var(--l-ink-subtle);
  transition: color 0.2s ease;
}
.link-muted:hover { color: var(--l-ink-muted); }

/* Skip link */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -100%;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--l-primary-deep);
  color: var(--l-ink);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 0.5rem;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 1rem;
  outline: 2px solid var(--l-primary-soft);
  outline-offset: 2px;
}

/* Focus — visible keyboard rings */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--l-primary-light);
  outline-offset: 2px;
}
.nav-link:focus-visible {
  outline-offset: 4px;
  border-radius: 2px;
}

/* Trust strip */
.trust-strip {
  background: var(--l-trust-bg);
  border-color: var(--l-border-subtle);
}
.trust-strip li:first-child { color: var(--l-ink); }
.trust-strip li:nth-child(3) { color: var(--l-ink-muted); }
.trust-strip li:nth-child(5) { color: var(--l-primary-soft); font-weight: 500; }
.trust-divider { background: var(--l-border-subtle); }

/* Gradient orb — brand glow only */
.gradient-orb {
  background: radial-gradient(ellipse at center, var(--l-glow) 0%, transparent 70%);
  filter: blur(40px);
}

/* Noise texture overlay */
.noise-bg::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

/* Legacy gradient text — avoid on new work */
.text-gradient-brand {
  background: linear-gradient(135deg, var(--l-primary-soft) 0%, var(--l-primary) 50%, var(--l-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gradient-subtle {
  background: linear-gradient(180deg, var(--l-ink) 0%, oklch(96% 0.012 293 / 0.6) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Surfaces */
.glass-card {
  background: var(--l-card-bg);
  border: 1px solid var(--l-border-subtle);
  backdrop-filter: blur(12px);
  transition: border-color 0.3s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}
.glass-card:hover {
  border-color: var(--l-border);
  transform: translateY(-4px);
  box-shadow: 0 24px 48px var(--l-card-shadow), 0 0 0 1px var(--l-border-subtle);
}

.surface-panel {
  background: var(--l-surface-raised);
  border: 1px solid var(--l-border-subtle);
}

/* Primary button */
.btn-primary {
  background: linear-gradient(135deg, var(--l-primary-deep), var(--l-primary));
  color: var(--l-on-primary);
  box-shadow: 0 0 28px var(--l-glow), inset 0 1px 0 oklch(100% 0 0 / 0.12);
  transition: background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}
.btn-primary:hover {
  background: linear-gradient(135deg, oklch(44% 0.22 293), var(--l-primary-deep));
  box-shadow: 0 0 40px oklch(59% 0.214 293 / 0.45);
  transform: translateY(-1px);
}
.btn-primary:focus-visible,
.btn-ghost:focus-visible {
  outline: 2px solid var(--l-primary-soft);
  outline-offset: 3px;
}
.btn-primary:active,
.btn-ghost:active {
  transform: translateY(0);
}

/* Ghost button */
.btn-ghost {
  border: 1px solid var(--l-border);
  background: oklch(59% 0.214 293 / 0.06);
  color: var(--l-ink-muted);
  transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.btn-ghost:hover {
  border-color: var(--l-primary-light);
  background: oklch(59% 0.214 293 / 0.12);
  color: var(--l-ink);
}

/* Navbar */
.nav-blur {
  background: var(--l-nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--l-border-subtle);
  isolation: isolate;
}
.nav-link-active {
  color: var(--l-ink);
  border-bottom: 2px solid var(--l-primary);
}
.nav-link-idle {
  color: var(--l-ink-muted);
  transition: color 0.2s ease;
}
.nav-link-idle:hover { color: var(--l-ink); }

/* Section label (monospace uppercase) */
.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--l-section-label);
}

/* Feature list */
.feature-list {
  border-top: 1px solid var(--l-border-subtle);
}
.feature-list li {
  border-bottom: 1px solid var(--l-border-subtle);
  padding: 1.25rem 0;
}
.feature-list li:last-child { border-bottom: 0; }
.feature-icon {
  color: var(--l-feature-icon);
}

/* FAQ */
.faq-row {
  border: 1px solid var(--l-border-subtle);
  border-radius: 1rem;
  background: var(--l-surface);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.faq-row:hover,
[data-faq-item].faq-open.faq-row {
  border-color: var(--l-border);
  background: var(--l-surface-raised);
}
[data-faq-panel] {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}
[data-faq-item].faq-open [data-faq-panel] {
  grid-template-rows: 1fr;
}
[data-faq-panel] > * {
  overflow: hidden;
  min-height: 0;
}

/* CTA wash */
.cta-wash {
  background: radial-gradient(ellipse 80% 60% at 50% 100%, var(--l-glow) 0%, transparent 70%);
}

/* Mockup preview */
.preview-chrome {
  background: var(--l-preview-chrome);
  border-color: var(--l-border-subtle);
}
.preview-search {
  background: var(--l-preview-search);
  border-color: var(--l-border-subtle);
  color: var(--l-ink-subtle);
}
.preview-card {
  background: var(--l-preview-card);
  border-color: var(--l-border-subtle);
}
.preview-label { color: var(--l-primary-light); }

/* Slide-up animation */
@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate-slide-up { animation: slideUp 0.7s ease forwards; }
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }

/* Floating animation */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}
.animate-float { animation: float 6s ease-in-out infinite; }

/* Shimmer text */
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}
.shimmer-text {
  background: linear-gradient(90deg, var(--l-primary-soft) 25%, var(--l-ink) 50%, var(--l-primary-soft) 75%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s linear infinite;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: oklch(59% 0.214 293 / 0.35); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: oklch(59% 0.214 293 / 0.6); }

/* Scroll reveal — visible by default; animate only when JS adds .js-enabled */
.reveal-on-scroll {
  opacity: 1;
  transform: none;
}
.js-enabled .reveal-on-scroll:not(.is-visible) {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.js-enabled .reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Mobile nav panel */
.nav-mobile-panel {
  max-height: 0;
  overflow: hidden;
  background: var(--l-nav-bg);
  transition: max-height 0.35s ease, visibility 0.35s ease;
  pointer-events: none;
  visibility: hidden;
}
.nav-mobile-panel.open {
  max-height: 320px;
  pointer-events: auto;
  visibility: visible;
}

/* Touch-friendly minimum */
.touch-min {
  min-height: 44px;
}

/* FAQ accordion */
[data-faq-item].faq-open .faq-chevron { transform: rotate(180deg); }
[data-faq-toggle]:focus-visible {
  outline: 2px solid var(--l-primary-light);
  outline-offset: -2px;
  border-radius: 1rem;
}

/* Pricing page */
.billing-toggle {
  border: 1px solid var(--l-border-subtle);
  background: var(--l-panel-bg);
}
.billing-toggle-btn {
  color: var(--l-ink-subtle);
  transition: color 0.2s ease, background 0.2s ease;
}
.billing-toggle-btn:hover:not(.is-active) {
  color: var(--l-ink-muted);
}
.billing-toggle-btn.is-active {
  background: var(--l-primary-deep);
  color: var(--l-on-primary);
}
.billing-toggle-btn:focus-visible {
  outline: 2px solid var(--l-primary-light);
  outline-offset: 2px;
}
.billing-save { color: var(--l-success); }

.icon-check { color: var(--l-success); }
.icon-muted { color: var(--l-ink-subtle); }
.plan-included { color: var(--l-ink-muted); }
.plan-excluded { color: var(--l-ink-subtle); }

.pricing-featured {
  border: 2px solid oklch(59% 0.214 293 / 0.5);
  box-shadow: 0 0 40px var(--l-glow);
}
.pricing-badge {
  background: var(--l-primary-deep);
  color: var(--l-on-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.compare-table-wrap {
  border: 1px solid var(--l-border-subtle);
  border-radius: 1rem;
  overflow-x: auto;
}
.compare-table {
  width: 100%;
  min-width: 600px;
  text-align: left;
  font-size: 0.875rem;
}
.compare-table thead {
  position: sticky;
  top: 4rem;
  z-index: 10;
  background: var(--l-table-head-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--l-border-subtle);
}
.compare-table th,
.compare-table td { padding: 1rem; }
.compare-table tbody { color: var(--l-ink-muted); }
.compare-table tbody tr + tr { border-top: 1px solid var(--l-border-subtle); }
.compare-table .col-highlight { color: var(--l-primary-soft); }

.info-card {
  background: var(--l-surface);
  border: 1px solid var(--l-border-subtle);
  border-radius: 1rem;
  padding: 1.5rem;
  transition: border-color 0.2s ease;
}
.info-card:hover { border-color: var(--l-border); }

.cta-panel {
  background: var(--l-panel-bg);
  border: 1px solid var(--l-border-subtle);
  border-radius: 1.5rem;
  padding: 2.5rem;
}

/* Form fields */
.field-input {
  width: 100%;
  background: var(--l-surface);
  border: 1px solid var(--l-border-subtle);
  border-radius: 0.75rem;
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
  color: var(--l-ink);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.field-input::placeholder {
  color: var(--l-ink-subtle);
}
.field-input:focus {
  outline: none;
  border-color: var(--l-primary);
}
.field-input:focus-visible {
  outline: 2px solid var(--l-primary-light);
  outline-offset: 2px;
}

.team-avatar {
  background: oklch(59% 0.214 293 / 0.18);
  border: 1px solid var(--l-border);
  color: var(--l-primary-light);
}
html:not(.dark) .team-avatar {
  background: oklch(59% 0.214 293 / 0.1);
  color: var(--l-primary-deep);
}

.toast-notice {
  background: var(--l-primary-deep);
  border: 1px solid var(--l-border);
  color: var(--l-on-primary);
}

.value-icon {
  color: var(--l-feature-icon);
}

.approach-index {
  color: var(--l-primary-light);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
}

.contact-meta-label {
  color: var(--l-ink-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Legal pages */
.legal-notice {
  border: 1px solid oklch(72% 0.12 85 / 0.45);
  background: oklch(45% 0.06 85 / 0.18);
  border-radius: 1rem;
  padding: 1.25rem;
  font-size: 0.875rem;
  color: oklch(92% 0.04 85);
}
.legal-notice-title {
  font-weight: 600;
  color: oklch(88% 0.06 85);
  margin-bottom: 0.25rem;
}
html:not(.dark) .legal-notice {
  border-color: oklch(75% 0.12 85 / 0.55);
  background: oklch(96% 0.04 85 / 0.85);
  color: oklch(35% 0.06 85);
}
html:not(.dark) .legal-notice-title {
  color: oklch(42% 0.1 85);
}
.legal-notice strong {
  font-weight: 600;
  color: inherit;
}

.legal-section {
  scroll-margin-top: 7rem;
}
.legal-body {
  color: var(--l-ink-muted);
  line-height: 1.65;
}
.legal-body p + p {
  margin-top: 0.75rem;
}
.legal-body ul {
  list-style: disc;
  padding-left: 1.25rem;
  margin-top: 0.75rem;
}
.legal-body li + li {
  margin-top: 0.5rem;
}
.legal-body strong {
  color: var(--l-ink);
  font-weight: 600;
}
.legal-body a {
  color: var(--l-link);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.legal-body a:hover {
  color: var(--l-link-hover);
}

.legal-updated {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--l-ink-subtle);
}

.legal-toc-link {
  color: var(--l-ink-muted);
  transition: color 0.2s ease;
}
.legal-toc-link:hover {
  color: var(--l-ink);
}

.legal-aside {
  background: var(--l-card-bg);
  border: 1px solid var(--l-border-subtle);
  border-radius: 1rem;
  backdrop-filter: blur(12px);
}
.legal-aside-link {
  display: block;
  color: var(--l-ink-muted);
  padding: 0.125rem 0 0.125rem 0.5rem;
  margin-left: -0.125rem;
  border-left: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.legal-aside-link:hover {
  color: var(--l-ink);
  border-left-color: var(--l-primary);
}

.legal-related {
  text-align: center;
  color: var(--l-ink-subtle);
  font-size: 0.875rem;
  padding-top: 1rem;
}
.legal-related-sep {
  color: var(--l-ink-subtle);
  margin: 0 0.5rem;
}

/* Preferences — theme + language */
.pref-toolbar {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  position: relative;
  z-index: 2;
}
.pref-group {
  display: inline-flex;
  align-items: center;
  gap: 0.125rem;
  padding: 0.125rem;
  border-radius: 9999px;
  border: 1px solid var(--l-border-subtle);
  background: var(--l-pref-bg);
}
.pref-btn {
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0 0.5rem;
  border-radius: 9999px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--l-ink-subtle);
  transition: color 0.2s ease, background 0.2s ease;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
}
.pref-btn:hover:not(.is-active) {
  color: var(--l-ink-muted);
}
.pref-btn.is-active {
  background: var(--l-primary-deep);
  color: var(--l-on-primary);
}
.pref-btn:focus-visible {
  outline: 2px solid var(--l-primary-light);
  outline-offset: 2px;
}
.pref-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 9999px;
  border: 1px solid var(--l-border-subtle);
  background: var(--l-pref-bg);
  color: var(--l-ink-muted);
  transition: color 0.2s ease, border-color 0.2s ease;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
}
.pref-icon-btn svg {
  pointer-events: none;
}
.pref-icon-btn:hover {
  color: var(--l-ink);
  border-color: var(--l-border);
}
.pref-icon-btn:focus-visible {
  outline: 2px solid var(--l-primary-light);
  outline-offset: 2px;
}
.pref-icon-btn [hidden] {
  display: none !important;
}

@media (max-width: 767px) {
  .nav-blur,
  .nav-mobile-panel {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .animate-slide-up,
  .animate-float,
  .shimmer-text {
    animation: none !important;
  }

  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .js-enabled .reveal-on-scroll:not(.is-visible) {
    opacity: 1 !important;
    transform: none !important;
  }

  .glass-card,
  .btn-primary,
  .btn-ghost {
    transition: border-color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
  }

  .glass-card:hover {
    transform: none;
  }

  .btn-primary:hover,
  .btn-ghost:hover {
    transform: none;
  }

  .animate-pulse {
    animation: none !important;
  }

  [data-faq-panel] {
    transition: none !important;
  }
}