/* ============================================================
   Status2Go Landing Page — styles.css
   Modern, animated landing page for Status2Go TV Status Display
   ============================================================ */

/* ----------------------------------------------------------
   1. CSS Custom Properties (Light Theme)
   ---------------------------------------------------------- */
:root {
  /* Brand Colors — Green palette for Status Display */
  --color-green: #16a34a;
  --color-green-soft: #f0fdf4;
  --color-blue: #2563eb;
  --color-blue-soft: #eff6ff;
  --color-teal: #0d9488;
  --color-teal-soft: #f0fdfa;
  --color-purple: #7c3aed;
  --color-purple-soft: #f5f3ff;
  --color-yellow: #f59e0b;

  /* Theme Colors */
  --color-bg: #ffffff;
  --color-bg-alt: #fafbfc;
  --color-surface: #f1f5f9;
  --color-primary: #16a34a;
  --color-primary-hover: #15803d;
  --color-primary-rgb: 22, 163, 74;
  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #94a3b8;
  --color-border: #e2e8f0;
  --color-border-soft: #f1f5f9;

  /* Gradient */
  --gradient-hero: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 25%, #e0f2fe 50%, #f0fdf4 75%, #faf5ff 100%);
  --gradient-cta: linear-gradient(135deg, #16a34a, #15803d, #065f46);
  --gradient-text: linear-gradient(135deg, #16a34a, #2563eb);

  /* Typography */
  --font-display: 'Sora', -apple-system, sans-serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-base: 1rem;
  --line-height: 1.65;

  /* Spacing */
  --section-gap: 7rem;
  --container-max: 1140px;

  /* Misc */
  --radius: 1rem;
  --radius-sm: 0.625rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.1), 0 8px 20px rgba(0,0,0,0.05);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ----------------------------------------------------------
   2. Dark Theme
   ---------------------------------------------------------- */
[data-theme="dark"] {
  --color-bg: #0c0f1a;
  --color-bg-alt: #111827;
  --color-surface: #1e293b;
  --color-primary: #4ade80;
  --color-primary-hover: #22c55e;
  --color-primary-rgb: 74, 222, 128;
  --color-text: #f1f5f9;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #64748b;
  --color-border: #1e293b;
  --color-border-soft: #1e293b;

  --color-green-soft: rgba(22, 163, 74, 0.12);
  --color-blue-soft: rgba(37, 99, 235, 0.12);
  --color-teal-soft: rgba(13, 148, 136, 0.12);
  --color-purple-soft: rgba(124, 58, 237, 0.12);

  --gradient-hero: linear-gradient(135deg, #0a1a12 0%, #0c1a0f 25%, #0a1628 50%, #0a1a12 75%, #150f1f 100%);
  --gradient-text: linear-gradient(135deg, #4ade80, #60a5fa);

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.25);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.3);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.4);
}

/* ----------------------------------------------------------
   3. Reset & Base
   ---------------------------------------------------------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

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

/* ----------------------------------------------------------
   4. Floating Status Bubbles Background
   ---------------------------------------------------------- */
.bg-bubbles {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.bubble {
  position: absolute;
  border-radius: 50%;
  opacity: 0;
  animation: bubbleFloat linear infinite;
}

/* Status colors */
.bubble-green {
  background: radial-gradient(circle at 35% 35%, rgba(74, 222, 128, 0.4), rgba(22, 163, 74, 0.15));
  box-shadow: 0 0 30px rgba(22, 163, 74, 0.1);
}

.bubble-yellow {
  background: radial-gradient(circle at 35% 35%, rgba(250, 204, 21, 0.35), rgba(234, 179, 8, 0.12));
  box-shadow: 0 0 30px rgba(234, 179, 8, 0.08);
}

.bubble-red {
  background: radial-gradient(circle at 35% 35%, rgba(248, 113, 113, 0.35), rgba(239, 68, 68, 0.12));
  box-shadow: 0 0 30px rgba(239, 68, 68, 0.08);
}

.bubble-purple {
  background: radial-gradient(circle at 35% 35%, rgba(167, 139, 250, 0.3), rgba(124, 58, 237, 0.1));
  box-shadow: 0 0 30px rgba(124, 58, 237, 0.08);
}

[data-theme="dark"] .bubble-green {
  background: radial-gradient(circle at 35% 35%, rgba(74, 222, 128, 0.2), rgba(22, 163, 74, 0.06));
  box-shadow: 0 0 40px rgba(74, 222, 128, 0.08);
}

[data-theme="dark"] .bubble-yellow {
  background: radial-gradient(circle at 35% 35%, rgba(250, 204, 21, 0.18), rgba(234, 179, 8, 0.05));
  box-shadow: 0 0 40px rgba(250, 204, 21, 0.06);
}

[data-theme="dark"] .bubble-red {
  background: radial-gradient(circle at 35% 35%, rgba(248, 113, 113, 0.18), rgba(239, 68, 68, 0.05));
  box-shadow: 0 0 40px rgba(248, 113, 113, 0.06);
}

[data-theme="dark"] .bubble-purple {
  background: radial-gradient(circle at 35% 35%, rgba(167, 139, 250, 0.15), rgba(124, 58, 237, 0.04));
  box-shadow: 0 0 40px rgba(167, 139, 250, 0.06);
}

@keyframes bubbleFloat {
  0% {
    opacity: 0;
    transform: translateY(0) translateX(0) scale(0.8);
  }
  8% {
    opacity: var(--bubble-opacity, 0.5);
  }
  50% {
    transform: translateY(calc(var(--drift-y, -200px))) translateX(var(--drift-x, 30px)) scale(1);
  }
  92% {
    opacity: var(--bubble-opacity, 0.5);
  }
  100% {
    opacity: 0;
    transform: translateY(calc(var(--drift-y, -200px) * 2)) translateX(calc(var(--drift-x, 30px) * 1.5)) scale(0.6);
  }
}

/* ----------------------------------------------------------
   5. Container
   ---------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ----------------------------------------------------------
   6. Header
   ---------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

[data-theme="dark"] .site-header {
  background: rgba(12, 15, 26, 0.75);
}

.site-header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  height: 72px;
  gap: 2rem;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.header-logo img {
  height: 40px;
  width: auto;
  border-radius: var(--radius-sm);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
}

.nav-link {
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-shrink: 0;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  transition: all var(--transition);
}

.theme-toggle:hover {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border: none;
  background: none;
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

.mobile-menu-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu Overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  top: 72px;
  z-index: 999;
  background: var(--color-bg);
  padding: 2rem 1.5rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px);
  transition: opacity var(--transition), transform var(--transition);
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.mobile-menu nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-menu-link {
  display: block;
  padding: 1rem;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.mobile-menu-link:hover {
  background: var(--color-surface);
}

.mobile-menu hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0.75rem 0;
}

/* ----------------------------------------------------------
   7. Buttons
   ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.375rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
  line-height: 1.4;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.25);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--color-primary-rgb), 0.35);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: rgba(var(--color-primary-rgb), 0.06);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1.5px solid var(--color-border);
}

.btn-ghost:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
  background: var(--color-surface);
}

.btn-white {
  background: #ffffff;
  color: var(--color-green);
  font-weight: 700;
}

.btn-white:hover {
  background: #ffffff;
  color: var(--color-green);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.btn-ghost-light {
  background: rgba(255,255,255,0.15);
  color: #ffffff;
  border: 1.5px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(4px);
}

.btn-ghost-light:hover {
  background: rgba(255,255,255,0.25);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 0.875rem 1.875rem;
  font-size: 1.0625rem;
  border-radius: 0.75rem;
}

.btn-block {
  width: 100%;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ----------------------------------------------------------
   8. Hero Section
   ---------------------------------------------------------- */
.hero {
  position: relative;
  padding: 10rem 1.5rem 4rem;
  text-align: center;
  overflow: hidden;
  background: var(--gradient-hero);
  transition: background var(--transition-slow);
}

.hero .container {
  max-width: 800px;
  position: relative;
  z-index: 2;
}


/* Hero Badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 100px;
  background: rgba(var(--color-primary-rgb), 0.08);
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(var(--color-primary-rgb), 0.15);
}

.hero-badge svg {
  flex-shrink: 0;
}

/* Hero Heading */
.hero-heading {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.hero-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 2.5rem;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}


/* ----------------------------------------------------------
   9. Section Headers (shared)
   ---------------------------------------------------------- */
.section-tag {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.08);
  border: 1px solid rgba(var(--color-primary-rgb), 0.12);
  margin-bottom: 1rem;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-heading {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.section-subheading {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ----------------------------------------------------------
   10. Features Section
   ---------------------------------------------------------- */
.features {
  padding: var(--section-gap) 1.5rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-card {
  position: relative;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  opacity: 0;
  transition: opacity var(--transition);
}

.feature-card:nth-child(1)::before { background: var(--color-green); }
.feature-card:nth-child(2)::before { background: var(--color-blue); }
.feature-card:nth-child(3)::before { background: var(--color-teal); }
.feature-card:nth-child(4)::before { background: var(--color-purple); }

.feature-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

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

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.feature-icon svg {
  width: 26px;
  height: 26px;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.icon-green { background: var(--color-green-soft); }
.icon-green svg { stroke: var(--color-green); }
.icon-blue { background: var(--color-blue-soft); }
.icon-blue svg { stroke: var(--color-blue); }
.icon-teal { background: var(--color-teal-soft); }
.icon-teal svg { stroke: var(--color-teal); }
.icon-purple { background: var(--color-purple-soft); }
.icon-purple svg { stroke: var(--color-purple); }

.feature-card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.625rem;
  color: var(--color-text);
}

.feature-card-description {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
}

.feature-tag {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

/* ----------------------------------------------------------
   11. Workflow Section
   ---------------------------------------------------------- */
.workflow {
  padding: var(--section-gap) 1.5rem;
  background: var(--color-surface);
  transition: background var(--transition);
}

.workflow-steps {
  display: flex;
  gap: 2rem;
  max-width: 960px;
  margin: 0 auto;
  position: relative;
}

.workflow-step {
  flex: 1;
  position: relative;
  text-align: center;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #ffffff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 2;
}

.step-connector {
  position: absolute;
  top: 20px;
  left: calc(50% + 28px);
  right: calc(-50% + 28px);
  height: 2px;
  background: var(--color-border);
  z-index: 1;
}

[data-theme="dark"] .step-connector {
  background: var(--color-border);
}

.step-content {
  padding: 0 0.5rem;
}

.step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin-bottom: 1rem;
}

.step-icon svg {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.step-icon-green { background: var(--color-green-soft); color: var(--color-green); }
.step-icon-blue { background: var(--color-blue-soft); color: var(--color-blue); }
.step-icon-teal { background: var(--color-teal-soft); color: var(--color-teal); }

.step-content h3 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.step-content p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ----------------------------------------------------------
   12. Stats Section
   ---------------------------------------------------------- */
.stats {
  padding: var(--section-gap) 1.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-card {
  text-align: center;
  padding: 2.5rem 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.stat-icon svg {
  fill: none;
}

.stat-number {
  display: inline;
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text);
  line-height: 1;
}

.stat-suffix {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-text {
  display: block;
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-primary);
  line-height: 1;
}

.stat-label {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* ----------------------------------------------------------
   13. CTA Section
   ---------------------------------------------------------- */
.cta {
  padding: var(--section-gap) 1.5rem;
}

.cta-card {
  position: relative;
  text-align: center;
  padding: 4rem 2rem;
  border-radius: var(--radius-xl);
  background: var(--gradient-cta);
  overflow: hidden;
  color: #ffffff;
}

.cta-glow {
  position: absolute;
  top: -50%;
  left: -25%;
  width: 150%;
  height: 150%;
  background: radial-gradient(ellipse, rgba(255,255,255,0.15) 0%, transparent 60%);
  animation: ctaGlow 6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes ctaGlow {
  0%, 100% { transform: translate(0, 0); opacity: 0.6; }
  50% { transform: translate(10%, 5%); opacity: 1; }
}

.cta-heading {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
  line-height: 1.2;
}

.cta-description {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ----------------------------------------------------------
   14. Footer
   ---------------------------------------------------------- */
.site-footer {
  padding: 4rem 1.5rem 2rem;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  transition: background var(--transition), border-color var(--transition);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.footer-logo img {
  height: 36px;
  width: auto;
  border-radius: var(--radius-sm);
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.footer-links h4 {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.footer-links a {
  display: block;
  padding: 0.25rem 0;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ----------------------------------------------------------
   15. Scroll Reveal Animation
   ---------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delays for grid items */
.feature-card.reveal { transition-delay: calc(var(--delay, 0) * 120ms); }
.workflow-step.reveal { transition-delay: calc(var(--delay, 0) * 150ms); }
.stat-card.reveal { transition-delay: calc(var(--delay, 0) * 100ms); }

/* ----------------------------------------------------------
   16. Responsive — Tablet (< 960px)
   ---------------------------------------------------------- */
@media (max-width: 959px) {
  .header-nav { display: none; }

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

  .header-actions .btn { display: none; }

  .hero {
    padding: 8rem 1.5rem 3rem;
  }

  .hero-heading {
    font-size: 2.5rem;
  }

  .features-grid {
    grid-template-columns: 1fr 1fr;
  }

  .workflow-steps {
    flex-direction: column;
    gap: 1.5rem;
  }

  .step-connector { display: none; }

  .workflow-step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    text-align: left;
  }

  .step-number {
    margin-bottom: 0;
    flex-shrink: 0;
  }

  .step-content {
    padding: 0;
  }

  .step-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 0.625rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* ----------------------------------------------------------
   17. Responsive — Mobile (< 640px)
   ---------------------------------------------------------- */
@media (max-width: 639px) {
  :root {
    --section-gap: 4.5rem;
  }

  .hero {
    padding: 7rem 1rem 2.5rem;
  }

  .hero-heading {
    font-size: 2rem;
  }

  .hero-heading br { display: none; }

  .hero-description {
    font-size: 1.0625rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
    margin-bottom: 2.5rem;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 300px;
  }

  .section-heading {
    font-size: 1.875rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .feature-card {
    padding: 1.5rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .stat-card {
    padding: 1.5rem 1rem;
  }

  .stat-number {
    font-size: 2.25rem;
  }

  .cta-card {
    padding: 3rem 1.5rem;
  }

  .cta-heading {
    font-size: 1.75rem;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .cta-actions .btn {
    width: 100%;
    max-width: 280px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

}

/* ----------------------------------------------------------
   18. Accessibility — Reduced Motion
   ---------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  html { scroll-behavior: auto; }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .bubble { animation: none; opacity: var(--bubble-opacity, 0.3) !important; }
}