/* ══════════════════════════════════════════════════════════════
   OpenHarness-WatsonX — Landing Page Styles
   Bravonix Design System
   ══════════════════════════════════════════════════════════════ */

/* ── Design Tokens ───────────────────────────────────────── */
:root {
  /* ── Bravonix Design Tokens ── */
  --bnx-ink: #0A0A0A;
  --bnx-ink-soft: #1A1A1A;
  --bnx-paper: #FFFFFF;
  --bnx-bone: #EDEAE2;
  --bnx-purple: #7030A0;
  --bnx-purple-2: #5B2EE0;
  --bnx-purple-bright: #8B5CF6;
  --bnx-purple-deep: #2A0E4A;
  --bnx-success: #22C55E;
  --bnx-warning: #F59E0B;
  --bnx-danger: #EF4444;
  --bnx-info: #3B82F6;
  --bnx-font-sans: 'Sora', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --bnx-font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
  --bnx-radius-sm: 10px;
  --bnx-radius-md: 14px;
  --bnx-radius-lg: 20px;
  --bnx-radius-pill: 999px;
  --bnx-ease: cubic-bezier(.2,.8,.2,1);
  --bnx-text-dark: #0A0A0A;
  --bnx-text-light: #FFFFFF;
  --bnx-text-muted-dark: rgba(10,10,10,0.68);
  --bnx-text-muted-light: rgba(255,255,255,0.72);

  /* ── Legacy aliases (compatibilidade) ── */
  --p: var(--bnx-purple);
  --p-bright: var(--bnx-purple-bright);
  --p-deep: var(--bnx-purple-deep);
  --p-glow: rgba(139, 92, 246, 0.15);
  --success: var(--bnx-success);
  --warning: var(--bnx-warning);
  --danger: var(--bnx-danger);
  --info: var(--bnx-info);

  --bg: #FFFFFF;
  --bg2: #F8F7F4;
  --bg3: #F1EFE9;
  --bone: #EDEAE2;
  --surface: #FFFFFF;
  --surface-alt: #F8F7F4;

  --border: rgba(10, 10, 10, 0.08);
  --border2: rgba(10, 10, 10, 0.14);

  --t1: #0A0A0A;
  --t2: rgba(10, 10, 10, 0.68);
  --t3: rgba(10, 10, 10, 0.45);

  --ff: var(--bnx-font-sans);
  --fm: var(--bnx-font-mono);

  --r: 10px;
  --rm: 14px;
  --rl: 20px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.04);

  --nav-h: 64px;
  --max-w: 1200px;
}

[data-theme="dark"] {
  --bg: #0A0A0A;
  --bg2: #141414;
  --bg3: #1A1A1A;
  --bone: #1E1E1E;
  --surface: #141414;
  --surface-alt: #1A1A1A;

  --border: rgba(255, 255, 255, 0.08);
  --border2: rgba(255, 255, 255, 0.14);

  --t1: rgba(255, 255, 255, 0.95);
  --t2: rgba(255, 255, 255, 0.68);
  --t3: rgba(255, 255, 255, 0.45);

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.2);
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  font-family: var(--ff);
  background: var(--bg);
  color: var(--t1);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--p-bright);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--p);
}

img {
  max-width: 100%;
  height: auto;
}

/* ── Utilities ───────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--surface-alt);
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-sub {
  font-size: 16px;
  color: var(--t2);
  max-width: 560px;
  line-height: 1.6;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .section-sub {
  margin: 0 auto;
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Navbar ──────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: background 0.3s, border-color 0.3s;
}

[data-theme="dark"] .navbar {
  background: rgba(10, 10, 10, 0.85);
}

.navbar .container {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 32px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  color: var(--t1);
  flex-shrink: 0;
}

.nav-brand img {
  height: 28px;
  width: 28px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--t2);
  transition: color 0.2s;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--t1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 16px;
  flex-shrink: 0;
}

.theme-toggle {
  width: 36px;
  height: 20px;
  border-radius: 10px;
  cursor: pointer;
  background: var(--border2);
  position: relative;
  transition: background 0.2s;
  border: none;
  flex-shrink: 0;
}

.theme-toggle::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  background: var(--p);
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: transform 0.2s;
}

[data-theme="dark"] .theme-toggle {
  background: var(--p-deep);
}

[data-theme="dark"] .theme-toggle::after {
  transform: translateX(16px);
  background: var(--p-bright);
}

.btn-nav {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  border-radius: var(--r);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--ff);
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  white-space: nowrap;
}

.btn-nav-primary {
  background: var(--p);
  color: #fff;
}

.btn-nav-primary:hover {
  background: var(--p-bright);
  color: #fff;
}

/* Mobile menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  width: 20px;
  height: 2px;
  background: var(--t1);
  border-radius: 1px;
  transition: all 0.3s;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  z-index: 999;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  display: block;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--t2);
  border-radius: var(--r);
  transition: all 0.2s;
}

.mobile-menu a:hover {
  background: var(--surface-alt);
  color: var(--t1);
}

.mobile-menu .btn-nav {
  margin-top: 8px;
  text-align: center;
  justify-content: center;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .nav-actions .btn-nav {
    display: none;
  }
  .hamburger {
    display: flex;
    margin-left: auto;
  }
}

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  padding-top: calc(var(--nav-h) + 80px);
  padding-bottom: 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--p-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--p-glow);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: var(--p-bright);
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 8px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.typewriter-line {
  display: block;
  min-height: 1.2em;
}

.typewriter-text {
  color: var(--p-bright);
  font-family: var(--fm);
  font-weight: 700;
  position: relative;
}

.typewriter-cursor {
  display: inline-block;
  width: 3px;
  height: 0.85em;
  background: var(--p-bright);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink-cursor 0.7s step-end infinite;
}

@keyframes blink-cursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-subtitle {
  font-size: 17px;
  color: var(--t2);
  max-width: 640px;
  margin: 24px auto 36px;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--bnx-radius-pill, var(--r));
  font-size: 14px;
  font-weight: 600;
  font-family: var(--ff);
  cursor: pointer;
  transition: background var(--bnx-ease) 0.2s, color var(--bnx-ease) 0.2s, border-color var(--bnx-ease) 0.2s, transform var(--bnx-ease) 0.2s, box-shadow var(--bnx-ease) 0.2s;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--p);
  color: #fff;
}

.btn-primary:hover {
  background: var(--p-bright);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(112, 48, 160, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--t1);
  border: 1px solid var(--border2);
}

.btn-secondary:hover {
  border-color: var(--p);
  color: var(--p);
  transform: translateY(-1px);
}

/* Stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 720px;
  margin: 0 auto;
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--p);
  letter-spacing: -0.02em;
  font-family: var(--fm);
}

.stat-label {
  font-size: 12px;
  color: var(--t3);
  margin-top: 4px;
  font-weight: 500;
}

@media (max-width: 600px) {
  .hero {
    padding-top: calc(var(--nav-h) + 48px);
    padding-bottom: 56px;
  }
  .hero h1 {
    font-size: 30px;
  }
  .hero-subtitle {
    font-size: 15px;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .stat-value {
    font-size: 24px;
  }
}

/* ── Features ────────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--rm);
  padding: 32px 28px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--p), var(--p-bright));
  opacity: 0;
  transition: opacity 0.3s;
}

.feature-card:hover {
  border-color: var(--p);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(112, 48, 160, .08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--p);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 13px;
  color: var(--t2);
  line-height: 1.6;
}

@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Harness Section ────────────────────────────────────── */
.harness-pitch {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 40px;
}

.harness-headline {
  font-size: 16px;
  line-height: 1.7;
  color: var(--t2);
}

.harness-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

@media (max-width: 1024px) {
  .harness-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .harness-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .harness-grid {
    grid-template-columns: 1fr;
  }
}

.harness-card {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  transition: border-color 0.2s, transform 0.2s;
}

.harness-card:hover {
  border-color: var(--p);
  transform: translateY(-2px);
}

.harness-card-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(112, 48, 160, .08);
  border-radius: 10px;
  color: var(--p);
  margin-bottom: 12px;
}

.harness-card-icon svg {
  width: 20px;
  height: 20px;
}

.harness-card h4 {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--t1);
}

.harness-card p {
  font-size: 12px;
  line-height: 1.5;
  color: var(--t2);
  margin: 0;
}

.harness-cta {
  text-align: center;
  margin-top: 32px;
  font-size: 15px;
  color: var(--t2);
}

.harness-cta strong {
  color: var(--p);
}

/* ── Migration Showcase ──────────────────────────────────── */
.migration-section {
  background: linear-gradient(135deg, var(--p-deep) 0%, #1a0833 100%);
  color: #fff;
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}

.migration-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.migration-section .section-title {
  color: #fff;
}

.migration-section .section-sub {
  color: rgba(255, 255, 255, 0.7);
}

.migration-tagline {
  font-size: 20px;
  font-weight: 600;
  color: var(--p-bright);
  margin-bottom: 40px;
  text-align: center;
  font-style: italic;
}

/* Pipeline */
.pipeline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

.pipeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 14px;
  border-radius: var(--r);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  min-width: 100px;
  transition: all 0.3s;
}

.pipeline-step:hover {
  background: rgba(139, 92, 246, 0.15);
  border-color: var(--p-bright);
}

.pipeline-step-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.9);
}

.pipeline-step-icon svg {
  width: 20px;
  height: 20px;
}

.pipeline-step-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.85);
}

.pipeline-step-num {
  font-size: 9px;
  color: rgba(255, 255, 255, 0.4);
  font-family: var(--fm);
}

.pipeline-arrow {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.3);
  flex-shrink: 0;
}

.migration-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.mig-highlight {
  text-align: center;
  padding: 24px;
}

.mig-highlight-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(139, 92, 246, 0.15);
  border-radius: 12px;
  color: var(--p-bright);
  margin: 0 auto 12px;
}

.mig-highlight-icon svg {
  width: 24px;
  height: 24px;
}

.mig-highlight h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
}

.mig-highlight p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .pipeline {
    gap: 8px;
  }
  .pipeline-step {
    min-width: 80px;
    padding: 12px 10px;
  }
  .pipeline-arrow {
    display: none;
  }
  .migration-highlights {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* ── Models ──────────────────────────────────────────────── */
.models-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.model-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--rm);
  padding: 24px 20px;
  text-align: center;
  transition: all 0.3s;
  position: relative;
}

.model-card:hover {
  border-color: var(--p);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.model-badge {
  position: absolute;
  top: -8px;
  right: 12px;
  background: var(--p);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 100px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.model-name {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.model-params {
  font-size: 11px;
  color: var(--p-bright);
  font-family: var(--fm);
  font-weight: 600;
  margin-bottom: 8px;
}

.model-desc {
  font-size: 12px;
  color: var(--t3);
  line-height: 1.5;
}

@media (max-width: 1024px) {
  .models-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .models-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── Security ────────────────────────────────────────────── */
.security-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.security-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--rm);
  padding: 28px 24px;
  text-align: center;
  transition: all 0.3s;
}

.security-item:hover {
  border-color: var(--success);
  box-shadow: var(--shadow-sm);
}

.security-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(112, 48, 160, .08);
  border-radius: 12px;
  color: var(--p);
  margin: 0 auto 12px;
}

.security-icon svg {
  width: 24px;
  height: 24px;
}

.security-item h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 6px;
}

.security-item p {
  font-size: 12px;
  color: var(--t3);
  line-height: 1.5;
}

.security-tagline {
  text-align: center;
  font-size: 14px;
  color: var(--t2);
  font-style: italic;
  margin-top: 8px;
}

@media (max-width: 768px) {
  .security-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .security-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Demo CTA ────────────────────────────────────────────── */
.demo-section {
  background: linear-gradient(135deg, var(--p) 0%, var(--p-bright) 100%);
  padding: 80px 0;
  text-align: center;
  color: #fff;
}

.demo-section h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.demo-section p {
  font-size: 17px;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.btn-demo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  border-radius: var(--r);
  font-size: 15px;
  font-weight: 700;
  font-family: var(--ff);
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  text-decoration: none;
  background: #fff;
  color: var(--p);
}

.btn-demo:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  color: var(--p);
}

.demo-trust {
  font-size: 13px;
  opacity: 0.7;
  margin-top: 16px;
}

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  color: var(--t1);
  margin-bottom: 12px;
}

.footer-brand img {
  height: 24px;
  width: 24px;
}

.footer-desc {
  font-size: 13px;
  color: var(--t3);
  line-height: 1.6;
  max-width: 360px;
}

.footer-col h5 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--t3);
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--t2);
  padding: 4px 0;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--p);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  font-size: 12px;
  color: var(--t3);
}

.footer-tech {
  display: flex;
  gap: 16px;
  font-size: 11px;
  color: var(--t3);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ── Accessibility ───────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
  .fade-in {
    opacity: 1;
    transform: none;
  }
}

/* ── Focus styles ────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--p-bright);
  outline-offset: 2px;
}

/* ── Mobile Responsiveness Enhancements ─────────────────── */
@media (max-width: 768px) {
  /* Section spacing */
  .section {
    padding: 56px 0;
  }
  .section-title {
    font-size: 24px;
  }
  .section-sub {
    font-size: 14px;
  }
  .section-header {
    margin-bottom: 32px;
  }
  .container {
    padding: 0 16px;
  }

  /* Hero adjustments */
  .hero {
    padding-top: calc(var(--nav-h) + 48px);
    padding-bottom: 48px;
  }
  .hero h1 {
    font-size: 28px;
  }
  .hero-badge {
    font-size: 11px;
    padding: 5px 12px;
    margin-bottom: 20px;
  }
  .hero-subtitle {
    font-size: 14px;
    margin: 16px auto 24px;
  }
  .hero-ctas {
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-bottom: 36px;
  }
  .hero-ctas .btn {
    width: 100%;
    max-width: 320px;
    justify-content: center;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .stat-value {
    font-size: 24px;
  }

  /* Features grid */
  .feature-card {
    padding: 20px 18px;
  }

  /* Harness pitch */
  .harness-headline {
    font-size: 14px;
  }
  .harness-cta {
    font-size: 13px;
  }

  /* Pipeline */
  .pipeline-step {
    min-width: 70px;
    padding: 10px 8px;
  }
  .pipeline-step-label {
    font-size: 9px;
  }
  .pipeline-step-num {
    font-size: 8px;
  }

  /* Migration section */
  .migration-section {
    padding: 56px 0;
  }
  .migration-tagline {
    font-size: 16px;
    margin-bottom: 24px;
  }

  /* Models */
  .model-card {
    padding: 18px 14px;
  }
  .model-name {
    font-size: 13px;
  }
  .model-desc {
    font-size: 11px;
  }

  /* Security */
  .security-item {
    padding: 20px 16px;
  }

  /* Demo */
  .demo-section {
    padding: 48px 0;
  }
  .demo-section h2 {
    font-size: 24px;
  }
  .demo-section p {
    font-size: 14px;
    margin-bottom: 24px;
  }
  .btn-demo {
    padding: 12px 28px;
    font-size: 14px;
  }

  /* Footer */
  .footer {
    padding: 32px 0 20px;
  }
  .footer-desc {
    font-size: 12px;
  }
  .footer-tech {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 24px;
  }
  .hero-subtitle {
    font-size: 13px;
  }
  .stat-value {
    font-size: 20px;
  }
  .stat-label {
    font-size: 10px;
  }
  .section-title {
    font-size: 20px;
  }
  .section-sub {
    font-size: 13px;
  }
  .feature-card {
    padding: 16px 14px;
  }
  .feature-card h3 {
    font-size: 14px;
  }
  .feature-card p {
    font-size: 12px;
  }
  .harness-card {
    padding: 14px;
  }
  .harness-card h4 {
    font-size: 12px;
  }
  .harness-card p {
    font-size: 11px;
  }
  .pipeline-step {
    min-width: 60px;
    padding: 8px 6px;
  }
  .pipeline-step-label {
    font-size: 8px;
  }
  .mig-highlight {
    padding: 16px;
  }
  .mig-highlight h4 {
    font-size: 13px;
  }
  .mig-highlight p {
    font-size: 12px;
  }
  .model-card {
    padding: 14px 12px;
  }
  .model-badge {
    font-size: 8px;
    padding: 2px 8px;
  }
  .security-item {
    padding: 16px 12px;
  }
  .security-item h4 {
    font-size: 13px;
  }
  .security-item p {
    font-size: 11px;
  }
  .demo-section h2 {
    font-size: 20px;
  }
  .demo-section p {
    font-size: 13px;
  }
  .btn-demo {
    padding: 10px 24px;
    font-size: 13px;
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
  .demo-trust {
    font-size: 11px;
  }
  .nav-brand {
    font-size: 14px;
  }
  .nav-brand img {
    height: 22px;
    width: 22px;
  }
}