/* ============================================
   MARIANI GROUP - Design System
   A refined, Apple-inspired aesthetic
   ============================================ */

/* CSS Custom Properties */
:root {
  /* Core Brand Colors */
  --mg-black: #0a0a0a;
  --mg-white: #ffffff;
  --mg-gray-50: #fafafa;
  --mg-gray-100: #f5f5f7;
  --mg-gray-200: #e8e8ed;
  --mg-gray-300: #d2d2d7;
  --mg-gray-400: #86868b;
  --mg-gray-500: #6e6e73;
  --mg-gray-600: #424245;
  --mg-gray-700: #2d2d2d;
  --mg-gray-800: #1d1d1f;
  --mg-gray-900: #111111;

  /* PiggyBank Palette */
  --piggy-sage: #2D6A4F;
  --piggy-sage-light: #40916C;
  --piggy-coral: #F1C2B0;
  --piggy-cream: #FDF9F5;
  --piggy-gradient: linear-gradient(135deg, #2D6A4F 0%, #40916C 50%, #52B788 100%);

  /* Prysm Palette */
  --prysm-turquoise: #40E5D1;
  --prysm-cyan: #66E6E6;
  --prysm-blue: #4D99FF;
  --prysm-navy: #232340;
  --prysm-navy-deep: #1a1a2e;
  --prysm-gradient: linear-gradient(135deg, #40E5D1 0%, #66E6E6 50%, #4D99FF 100%);

  /* Typography */
  --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;

  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;
  --space-6xl: 12rem;

  /* Animation */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 800ms;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 24px 80px rgba(0,0,0,0.16);
  --shadow-glow-piggy: 0 20px 60px rgba(45,106,79,0.3);
  --shadow-glow-prysm: 0 20px 60px rgba(64,229,209,0.3);

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-2xl: 40px;
  --radius-full: 9999px;

  /* Z-Index Scale */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-tooltip: 500;
}

/*
   Dark Mode - Disabled for bright theme
   Can be re-enabled by uncommenting below
*/
/*
@media (prefers-color-scheme: dark) {
  :root {
    --mg-gray-50: #1d1d1f;
    --mg-gray-100: #2d2d2d;
    --mg-gray-200: #424245;
    --mg-gray-300: #6e6e73;
    --mg-gray-400: #86868b;
    --mg-gray-500: #d2d2d7;
    --mg-gray-600: #e8e8ed;
    --mg-gray-700: #f5f5f7;
    --mg-gray-800: #fafafa;
    --mg-gray-900: #ffffff;
  }
}
*/

/* Bright Theme Additions */
:root {
  /* Additional bright theme colors */
  --mg-cream: #FFFDF9;
  --warm-peach: #FFE8DC;

  /* Soft gradient backgrounds */
  --warm-gradient-hero:
    radial-gradient(ellipse at 20% 30%, rgba(64,229,209,0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(45,106,79,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(255,200,170,0.1) 0%, transparent 50%);

  /* Soft shadows for bright theme */
  --shadow-soft: 0 4px 24px rgba(0,0,0,0.06);
  --shadow-soft-lg: 0 8px 40px rgba(0,0,0,0.08);
  --shadow-soft-xl: 0 16px 60px rgba(0,0,0,0.1);
}

/* ============================================
   Base Reset & Typography
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: #1d1d1f;
  background-color: #ffffff;
  overflow-x: hidden;
}

/* Selection */
::selection {
  background: var(--prysm-turquoise);
  color: var(--mg-black);
}

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.display-hero {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  color: #1d1d1f;
}

.display-large {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  color: #1d1d1f;
}

.display-medium {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  color: #1d1d1f;
}

.heading-large {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: #1d1d1f;
}

.heading-medium {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 600;
  color: #1d1d1f;
}

.body-large {
  font-size: 1.25rem;
  line-height: 1.7;
  color: #424245;
}

.body-medium {
  font-size: 1.125rem;
  line-height: 1.7;
  color: #424245;
}

.body-small {
  font-size: 0.875rem;
  line-height: 1.6;
  color: #424245;
}

.label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6e6e73;
}

/* Serif Accent */
.serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  color: #1d1d1f;
}

/* Text Colors */
.text-primary { color: #1d1d1f; }
.text-secondary { color: #6e6e73; }
.text-tertiary { color: #86868b; }
.text-inverse { color: var(--mg-white); }

/* Gradient Text */
.gradient-text {
  background: var(--prysm-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* ============================================
   Layout Utilities
   ============================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-wide {
  max-width: 1400px;
}

.container-narrow {
  max-width: 800px;
}

.section {
  padding: var(--space-5xl) 0;
}

.section-large {
  padding: var(--space-6xl) 0;
}

/* Flexbox */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.gap-2xl { gap: var(--space-2xl); }

/* Grid */
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* Text Alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ============================================
   Navigation
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  padding: var(--space-md) 0;
  transition: all var(--duration-normal) var(--ease-out-quart);
}

.nav.scrolled {
  background: rgba(255,255,255,0.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

body.dark-mode .nav.scrolled {
  background: rgba(10,10,10,0.8);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--mg-gray-800);
  text-decoration: none;
  letter-spacing: -0.02em;
}

body.dark-mode .nav-logo {
  color: var(--mg-white);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: #424245;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out-quart);
}

.nav-link:hover {
  color: #1d1d1f;
}

body.dark-mode .nav-link {
  color: var(--mg-gray-400);
}

body.dark-mode .nav-link:hover {
  color: var(--mg-white);
}

.nav-cta {
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--mg-white);
  background: var(--mg-gray-800);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-out-quart);
}

.nav-cta:hover {
  background: var(--mg-black);
  transform: scale(1.02);
}

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

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--mg-gray-800);
  border-radius: 1px;
  transition: all var(--duration-fast) var(--ease-out-quart);
}

body.dark-mode .nav-toggle span {
  background: var(--mg-white);
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-xl);
    background: var(--mg-white);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-out-quart);
  }

  body.dark-mode .nav-links {
    background: var(--mg-black);
  }

  .nav-links.active {
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    font-size: 1.5rem;
  }

  .nav-toggle {
    display: flex;
    z-index: 10;
  }

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

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

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

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.btn-primary {
  color: var(--mg-white);
  background: var(--mg-gray-800);
}

.btn-primary:hover {
  background: var(--mg-black);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  color: var(--mg-gray-800);
  background: var(--mg-gray-100);
}

.btn-secondary:hover {
  background: var(--mg-gray-200);
  transform: translateY(-2px);
}

.btn-outline {
  color: var(--mg-gray-800);
  background: transparent;
  border: 1.5px solid var(--mg-gray-300);
}

.btn-outline:hover {
  border-color: var(--mg-gray-800);
  transform: translateY(-2px);
}

.btn-piggy {
  color: var(--mg-white);
  background: var(--piggy-sage);
}

.btn-piggy:hover {
  background: var(--piggy-sage-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-piggy);
}

.btn-prysm {
  color: var(--mg-black);
  background: var(--prysm-turquoise);
}

.btn-prysm:hover {
  background: var(--prysm-cyan);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-prysm);
}

.btn-large {
  padding: var(--space-lg) var(--space-2xl);
  font-size: 1.125rem;
}

.btn-small {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
}

/* App Store Button */
.app-store-btn {
  display: inline-block;
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.app-store-btn:hover {
  transform: translateY(-3px);
  filter: brightness(1.1);
}

.app-store-btn img {
  height: 54px;
  width: auto;
}

/* ============================================
   Cards
   ============================================ */

.card {
  background: var(--mg-white);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--duration-normal) var(--ease-out-expo);
}

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

body.dark-mode .card {
  background: var(--mg-gray-800);
}

.card-glass {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.5);
}

body.dark-mode .card-glass {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
}

.card-elevated {
  box-shadow: var(--shadow-lg);
}

/* Feature Card */
.feature-card {
  padding: var(--space-2xl);
  background: var(--mg-gray-50);
  border-radius: var(--radius-xl);
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.feature-card:hover {
  background: var(--mg-white);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

body.dark-mode .feature-card {
  background: rgba(255,255,255,0.03);
}

body.dark-mode .feature-card:hover {
  background: rgba(255,255,255,0.06);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--mg-gray-100);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
  font-size: 1.5rem;
}

body.dark-mode .feature-icon {
  background: rgba(255,255,255,0.08);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  padding: var(--space-2xl);
}

.hero-label {
  display: inline-block;
  padding: var(--space-sm) var(--space-md);
  background: rgba(0,0,0,0.05);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: #6e6e73;
  margin-bottom: var(--space-xl);
}

body.dark-mode .hero-label {
  background: rgba(255,255,255,0.08);
  color: var(--mg-gray-400);
}

.hero-title {
  margin-bottom: var(--space-xl);
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: #424245;
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

/* Hero Background Effects */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.hero-gradient {
  position: absolute;
  width: 150%;
  height: 150%;
  top: -25%;
  left: -25%;
  background: radial-gradient(ellipse at 30% 20%, rgba(64,229,209,0.15) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 80%, rgba(45,106,79,0.12) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 50%, rgba(77,153,255,0.08) 0%, transparent 60%);
  animation: hero-drift 20s ease-in-out infinite;
}

@keyframes hero-drift {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(2%, 1%) rotate(1deg); }
  50% { transform: translate(-1%, 2%) rotate(-1deg); }
  75% { transform: translate(-2%, -1%) rotate(0.5deg); }
}

body.dark-mode .hero-gradient {
  background: radial-gradient(ellipse at 30% 20%, rgba(64,229,209,0.2) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 80%, rgba(45,106,79,0.15) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 50%, rgba(77,153,255,0.12) 0%, transparent 60%);
}

/* Floating Grid Pattern */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

body.dark-mode .hero-grid {
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
}

/* ============================================
   App Showcase
   ============================================ */

.app-showcase {
  position: relative;
}

.app-showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xl);
}

@media (max-width: 900px) {
  .app-showcase-grid {
    grid-template-columns: 1fr;
  }
}

.app-card {
  position: relative;
  padding: var(--space-3xl);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: all var(--duration-slow) var(--ease-out-expo);
  text-decoration: none;
}

.app-card * {
  text-decoration: none;
}

.app-card:hover {
  transform: translateY(-8px);
}

.app-card-piggy {
  background: linear-gradient(145deg, var(--piggy-cream) 0%, #fff 100%);
  border: 1px solid rgba(45,106,79,0.1);
}

.app-card-piggy:hover {
  box-shadow: 0 30px 80px rgba(45,106,79,0.2);
}

.app-card-prysm {
  background: linear-gradient(145deg, #F0FDFA 0%, #ECFEFF 50%, #fff 100%);
  color: var(--mg-gray-800);
  border: 1px solid rgba(64,229,209,0.15);
}

.app-card-prysm:hover {
  box-shadow: 0 30px 80px rgba(64,229,209,0.2);
  border-color: rgba(64,229,209,0.35);
}

.app-card-prysm .app-card-label {
  opacity: 1;
  color: #6e6e73;
}

.app-card-prysm .app-card-description {
  opacity: 1;
  color: #424245;
}

.app-card-prysm .app-card-title {
  color: var(--mg-gray-800);
}

.app-card-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-lg);
}

.app-card-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #6e6e73;
  margin-bottom: var(--space-sm);
}

.app-card-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: #1d1d1f;
}

.app-card-description {
  font-size: 1rem;
  line-height: 1.7;
  color: #424245;
  margin-bottom: var(--space-xl);
}

.app-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  text-decoration: none;
  transition: gap var(--duration-normal) var(--ease-out-expo);
}

.app-card-piggy .app-card-link {
  color: var(--piggy-sage);
}

.app-card-prysm .app-card-link {
  color: #0D9488;
}

.app-card-link:hover {
  gap: var(--space-md);
}

.app-card-link svg {
  width: 20px;
  height: 20px;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.app-card-link:hover svg {
  transform: translateX(4px);
}

/* Decorative Elements */
.app-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  opacity: 0.5;
  transition: all var(--duration-slow) var(--ease-out-expo);
}

.app-card-piggy::before {
  background: radial-gradient(circle, rgba(45,106,79,0.1) 0%, transparent 70%);
}

.app-card-prysm::before {
  background: radial-gradient(circle, rgba(64,229,209,0.15) 0%, transparent 70%);
}

.app-card:hover::before {
  transform: scale(1.2);
}

/* ============================================
   Phone Mockup
   ============================================ */

.phone-mockup {
  position: relative;
  width: 280px;
  margin: 0 auto;
}

.phone-frame {
  position: relative;
  padding: 12px;
  background: linear-gradient(145deg, #1a1a1a 0%, #2d2d2d 100%);
  border-radius: 44px;
  box-shadow:
    0 50px 100px rgba(0,0,0,0.3),
    inset 0 2px 4px rgba(255,255,255,0.1),
    inset 0 -2px 4px rgba(0,0,0,0.2);
}

.phone-screen {
  position: relative;
  border-radius: 36px;
  overflow: hidden;
  background: var(--mg-gray-900);
  aspect-ratio: 9/19.5;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 28px;
  background: #1a1a1a;
  border-radius: 0 0 20px 20px;
  z-index: 10;
}

/* ============================================
   Features Section
   ============================================ */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Stats Section
   ============================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

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

.stat-number {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat-label {
  font-size: 0.875rem;
  color: #6e6e73;
  font-weight: 500;
}

/* ============================================
   Contact Section
   ============================================ */

.contact-section {
  background: var(--mg-gray-50);
}

body.dark-mode .contact-section {
  background: var(--mg-gray-900);
}

.contact-card {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-2xl);
  background: var(--mg-white);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--mg-gray-800);
  text-decoration: none;
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.contact-email:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

body.dark-mode .contact-email {
  background: var(--mg-gray-800);
  color: var(--mg-white);
}

/* ============================================
   Footer
   ============================================ */

.footer {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--mg-gray-200);
}

body.dark-mode .footer {
  border-top-color: var(--mg-gray-700);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-xl);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--mg-gray-800);
  text-decoration: none;
}

body.dark-mode .footer-logo {
  color: var(--mg-white);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
  list-style: none;
}

.footer-link {
  font-size: 0.875rem;
  color: #6e6e73;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out-quart);
}

.footer-link:hover {
  color: #1d1d1f;
}

body.dark-mode .footer-link:hover {
  color: var(--mg-white);
}

.footer-copyright {
  width: 100%;
  text-align: center;
  padding-top: var(--space-xl);
  font-size: 0.875rem;
  color: #86868b;
}

/* ============================================
   Animations
   ============================================ */

/* Fade In Up */
.animate-fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--duration-slower) var(--ease-out-expo);
}

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

/* Stagger Children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 100ms; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 200ms; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 300ms; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 400ms; }
.stagger-children.visible > *:nth-child(6) { transition-delay: 500ms; }

.stagger-children.visible > * {
  opacity: 1;
  transform: translateY(0);
  transition: all var(--duration-slower) var(--ease-out-expo);
}

/* Scale In */
.animate-scale-in {
  opacity: 0;
  transform: scale(0.95);
  transition: all var(--duration-slower) var(--ease-out-expo);
}

.animate-scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* Float */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.animate-float {
  animation: float 4s ease-in-out infinite;
}

/* Pulse Glow */
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(64,229,209,0.3); }
  50% { box-shadow: 0 0 40px rgba(64,229,209,0.5); }
}

.animate-pulse-glow {
  animation: pulse-glow 3s ease-in-out infinite;
}

/* ============================================
   Utility Classes
   ============================================ */

.hidden { display: none; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mt-3xl { margin-top: var(--space-3xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mb-3xl { margin-bottom: var(--space-3xl); }

/* ============================================
   App-Specific Pages
   ============================================ */

/* PiggyBank Page */
.page-piggy {
  --accent: var(--piggy-sage);
  --accent-light: var(--piggy-sage-light);
  --bg-tint: var(--piggy-cream);
}

.page-piggy .hero {
  background: linear-gradient(180deg, var(--piggy-cream) 0%, var(--mg-white) 100%);
}

body.dark-mode .page-piggy .hero {
  background: linear-gradient(180deg, rgba(45,106,79,0.1) 0%, var(--mg-black) 100%);
}

/* Prysm Page - Bright Theme */
.page-prysm {
  --accent: var(--prysm-turquoise);
  --accent-light: var(--prysm-cyan);
  --bg-tint: var(--mg-white);
  background: var(--mg-white);
  color: var(--mg-gray-800);
}

.page-prysm .hero {
  background: var(--mg-white);
  color: var(--mg-gray-800);
}

.page-prysm .hero-subtitle {
  color: var(--mg-gray-500);
}

.page-prysm .hero-label {
  background: rgba(64,229,209,0.15);
  color: #0D9488;
}

/* ============================================
   Responsive Adjustments
   ============================================ */

@media (max-width: 768px) {
  .section {
    padding: var(--space-3xl) 0;
  }

  .section-large {
    padding: var(--space-4xl) 0;
  }

  .hero {
    min-height: auto;
    padding: var(--space-5xl) 0 var(--space-3xl);
    padding-top: calc(var(--space-5xl) + env(safe-area-inset-top));
  }

  .hero-content {
    padding: var(--space-lg);
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }

  /* Mobile touch targets - ensure minimum 44px height */
  .btn {
    min-height: 44px;
  }

  .nav-link {
    padding: var(--space-sm) var(--space-md);
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  /* Mobile typography - slightly larger for readability */
  body {
    font-size: 1.0625rem;
  }

  .body-small {
    font-size: 0.9375rem;
  }

  .label {
    font-size: 0.8125rem;
  }
}

/* ============================================
   Very Small Phones (iPhone SE, iPhone mini)
   ============================================ */

@media (max-width: 480px) {
  /* Tighter spacing for small screens */
  .section {
    padding: var(--space-2xl) 0;
  }

  .section-large {
    padding: var(--space-3xl) 0;
  }

  .container {
    padding: 0 var(--space-md);
  }

  /* Hero adjustments */
  .hero {
    padding: var(--space-3xl) 0 var(--space-2xl);
    padding-top: calc(var(--space-3xl) + env(safe-area-inset-top));
  }

  .hero-content {
    padding: var(--space-md);
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  /* Stack buttons vertically */
  .hero-buttons {
    flex-direction: column;
    width: 100%;
    align-items: stretch;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  /* Reduce grid gaps */
  .features-grid,
  .app-showcase-grid {
    gap: var(--space-md);
  }

  /* Smaller app card icons */
  .app-card-icon {
    width: 64px;
    height: 64px;
  }

  /* Feature cards tighter padding */
  .feature-card {
    padding: var(--space-xl);
  }

  .card {
    padding: var(--space-xl);
  }

  /* Typography refinements */
  .display-hero {
    font-size: clamp(2.25rem, 10vw, 3rem);
  }

  .display-large {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }

  .display-medium {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }

  /* Stats grid on smallest screens */
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }

  .stat-number {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }

  /* Footer adjustments */
  .footer {
    padding: var(--space-2xl) 0;
  }

  .footer-links {
    gap: var(--space-md);
    flex-direction: column;
  }

  .footer-link {
    padding: var(--space-sm) 0;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

/* ============================================
   iPhone Safe Area Support
   ============================================ */

/* Navigation safe area */
.nav {
  padding-top: max(var(--space-md), env(safe-area-inset-top));
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

/* Hero safe area - already set padding-top, add side insets */
.hero {
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

/* Footer safe area */
.footer {
  padding-bottom: max(var(--space-xl), env(safe-area-inset-bottom));
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

/* Mobile menu safe areas */
@media (max-width: 768px) {
  .nav-links {
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
}

/* ============================================
   Responsive Images
   ============================================ */

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

/* ============================================
   Reduced Motion Support
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .animate-float,
  .animate-pulse-glow {
    animation: none;
  }
}

/* ============================================
   Mobile Navigation Enhancements
   ============================================ */

@media (max-width: 768px) {
  .nav-links {
    transition: opacity var(--duration-normal) var(--ease-out-quart),
                visibility var(--duration-normal) var(--ease-out-quart);
  }

  .nav-links.active {
    transition: opacity var(--duration-normal) var(--ease-out-expo),
                visibility var(--duration-normal) var(--ease-out-expo);
  }

  /* Ensure touch targets are comfortable on mobile nav */
  .nav-links .nav-link {
    font-size: 1.25rem;
    padding: var(--space-md) var(--space-lg);
    min-height: 48px;
  }

  /* Contact email touch target */
  .contact-email {
    min-height: 48px;
    padding: var(--space-md) var(--space-xl);
  }
}