/*
==================================================
DOOP STUDIO - PREMIUM DESIGN SYSTEM
==================================================
A refined, premium design system featuring:
- Warm minimal aesthetic
- Distinctive typography (DM Sans + Instrument Serif)
- Terracotta/coral accents
- Sophisticated shadows and micro-interactions
==================================================
*/

/* ============================================
   1. CSS RESET & BASE STYLES
   ============================================ */

:root {
  /* Color Palette - Light Mode (Warm Minimal) */
  --color-bg-primary: #FDFBF7;
  --color-bg-secondary: #F8F5F0;
  --color-bg-white: #FFFFFF;
  --color-bg-cream: #FAF7F2;

  --color-text-primary: #1A1A1A;
  --color-text-secondary: #4A4A4A;
  --color-text-muted: #7A7A7A;
  --color-text-light: #9A9A9A;

  /* Accent Colors - Warm Terracotta Palette */
  --color-accent-primary: #C96B4B;
  --color-accent-primary-hover: #B85A3A;
  --color-accent-primary-light: rgba(201, 107, 75, 0.1);
  --color-accent-secondary: #1A1A1A;
  --color-accent-secondary-hover: #333333;

  /* Supporting Colors */
  --color-success: #2D8A6E;
  --color-error: #C94B4B;
  --color-warning: #D4A24C;

  /* Borders & Dividers */
  --color-border: #E8E4DE;
  --color-border-light: #F0EDE8;
  --color-divider: #E0DCD5;

  /* Typography */
  --font-family-heading: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.25rem;
  --font-size-6xl: 4rem;
  --font-size-7xl: 5rem;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.15;
  --line-height-snug: 1.3;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  --letter-spacing-tight: -0.02em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.02em;
  --letter-spacing-wider: 0.05em;

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Premium Shadows */
  --shadow-xs: 0 1px 2px rgba(26, 26, 26, 0.04);
  --shadow-sm: 0 2px 4px rgba(26, 26, 26, 0.04), 0 1px 2px rgba(26, 26, 26, 0.02);
  --shadow-md: 0 4px 12px rgba(26, 26, 26, 0.06), 0 2px 4px rgba(26, 26, 26, 0.04);
  --shadow-lg: 0 8px 24px rgba(26, 26, 26, 0.08), 0 4px 8px rgba(26, 26, 26, 0.04);
  --shadow-xl: 0 16px 48px rgba(26, 26, 26, 0.1), 0 8px 16px rgba(26, 26, 26, 0.06);
  --shadow-card: 0 2px 8px rgba(26, 26, 26, 0.04), 0 0 1px rgba(26, 26, 26, 0.08);
  --shadow-card-hover: 0 12px 32px rgba(26, 26, 26, 0.1), 0 4px 8px rgba(26, 26, 26, 0.04);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Container */
  --container-max-width: 1200px;
  --container-padding: var(--space-6);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 500ms cubic-bezier(0.22, 1, 0.36, 1);

  /* Animation Timings */
  --animation-fast: 200ms;
  --animation-medium: 400ms;
  --animation-slow: 600ms;
  --animation-counter: 1500ms;

  /* Premium Easing Functions */
  --ease-smooth: cubic-bezier(0.45, 0, 0.15, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-elastic: cubic-bezier(0.68, -0.15, 0.265, 1.15);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-smooth: cubic-bezier(0.65, 0, 0.35, 1);

  /* Stagger Delays */
  --stagger-delay: 80ms;
  --stagger-delay-fast: 50ms;
  --stagger-delay-slow: 120ms;
}

/* Dark Mode Colors */
.dark {
  --color-bg-primary: #141414;
  --color-bg-secondary: #1C1C1C;
  --color-bg-white: #242424;
  --color-bg-cream: #1A1A1A;

  --color-text-primary: #F5F3F0;
  --color-text-secondary: #B8B6B0;
  --color-text-muted: #8A8884;
  --color-text-light: #6A6A68;

  --color-accent-primary: #D4836B;
  --color-accent-primary-hover: #E09580;
  --color-accent-primary-light: rgba(212, 131, 107, 0.15);
  --color-accent-secondary: #F5F3F0;
  --color-accent-secondary-hover: #E8E6E0;

  --color-success: #4CAF88;
  --color-error: #E07070;
  --color-warning: #E4B86C;

  --color-border: #2E2E2E;
  --color-border-light: #262626;
  --color-divider: #363636;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25), 0 2px 4px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.3), 0 4px 8px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.35), 0 8px 16px rgba(0, 0, 0, 0.25);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.2), 0 0 1px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.35), 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* ============================================
   2. BASE STYLES
   ============================================ */

* {
  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-family-body);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  transition: background-color var(--transition-slow), color var(--transition-slow);
  overflow-x: hidden;
}

::selection {
  background-color: var(--color-accent-primary);
  color: white;
}

/* ============================================
   3. TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--space-6);
  line-height: var(--line-height-tight);
}

h2 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-5);
}

h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
}

h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

h5 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
}

h6 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
}

p {
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

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

a:hover {
  color: var(--color-accent-primary-hover);
}

strong, b {
  font-weight: var(--font-weight-semibold);
}

small {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Label/Overline Style */
.label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
  color: var(--color-accent-primary);
}

/* Responsive Typography */
@media (max-width: 768px) {
  h1 {
    font-size: var(--font-size-4xl);
  }
  h2 {
    font-size: var(--font-size-3xl);
  }
  h3 {
    font-size: var(--font-size-xl);
  }
  h4 {
    font-size: var(--font-size-lg);
  }
}

/* ============================================
   4. LAYOUT COMPONENTS
   ============================================ */

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
  position: relative;
}

.section.section-reduced-top {
  padding-top: var(--space-12);
}

@media (max-width: 768px) {
  .section {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
  }
}

/* ============================================
   5. PREMIUM BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-family-body);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::before {
  opacity: 1;
}

.btn-primary {
  background-color: var(--color-accent-primary);
  color: white;
  border-color: var(--color-accent-primary);
}

.btn-primary:hover {
  background-color: var(--color-accent-primary-hover);
  border-color: var(--color-accent-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 107, 75, 0.3);
  color: white;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-text-primary);
  border-color: var(--color-text-primary);
  color: var(--color-bg-primary);
  transform: translateY(-2px);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: transparent;
}

.btn-ghost:hover {
  background-color: var(--color-accent-primary-light);
  color: var(--color-accent-primary);
}

.btn-large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-xl);
}

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

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Dark mode button adjustments */
.dark .btn-secondary {
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.dark .btn-secondary:hover {
  background-color: var(--color-text-primary);
  border-color: var(--color-text-primary);
  color: var(--color-bg-primary);
}

/* ============================================
   6. PREMIUM CARDS
   ============================================ */

.card {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-smooth);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  opacity: 1;
  transition: opacity var(--transition-smooth);
  pointer-events: none;
  z-index: 0;
}

.card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card-hover);
  opacity: 0;
  transition: opacity var(--transition-smooth);
  pointer-events: none;
  z-index: 0;
}

.card.card-static,
.card.card-static:hover {
  transform: none;
  border-color: var(--color-border-light);
}

.card.card-static {
  transition: none;
}

.card.card-static::before,
.card.card-static::after {
  transition: none;
}

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

.card.card-static:hover::after {
  opacity: 0;
}

/* Ensure card content is clickable */
.card > * {
  position: relative;
  z-index: 1;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border);
}

.card:hover::before {
  opacity: 0;
}

.card:hover::after {
  opacity: 1;
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

.card-description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
}

/* Feature Card Variant */
.card-feature {
  text-align: center;
  padding: var(--space-10);
}

.card-feature .card-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent-primary-light);
  border-radius: var(--radius-lg);
  font-size: 1.5rem;
}

/* App Card Styles - For apps grid */
.grid-3 .card,
.grid-2 .card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.grid-3 .card .card-description,
.grid-2 .card .card-description {
  flex-grow: 1;
}

/* Ensure all cards in grid have same hover effect */
.grid .card {
  cursor: pointer;
}

.grid .card:hover {
  transform: translateY(-6px);
}

.grid .card:hover .btn {
  transform: none;
}

/* App icon adjustments */
.app-icon-large {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-xl);
}

/* ============================================
   7. NAVIGATION
   ============================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(253, 251, 247, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  transition: all var(--transition-normal);
}

.dark .navbar {
  background-color: rgba(20, 20, 20, 0.8);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar-logo {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  text-decoration: none;
  letter-spacing: var(--letter-spacing-tight);
  transition: color var(--transition-fast);
}

.navbar-logo:hover {
  color: var(--color-accent-primary);
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.navbar-link {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  position: relative;
  padding: var(--space-2) 0;
  transition: color var(--transition-fast);
}

.navbar-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent-primary);
  transition: width var(--transition-normal);
  border-radius: var(--radius-full);
}

.navbar-link:hover {
  color: var(--color-text-primary);
}

.navbar-link:hover::after {
  width: 100%;
}

.navbar-link.active {
  color: var(--color-text-primary);
}

.navbar-link.active::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  z-index: 1001;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  margin: 6px 0;
  transition: all var(--transition-fast);
  border-radius: var(--radius-full);
}

@media (max-width: 768px) {
  .navbar-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg-primary);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-8);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
  }

  .navbar-menu.active {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }

  .navbar-menu .navbar-link {
    font-size: var(--font-size-2xl);
  }

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

/* Dark Mode Toggle */
.dark-mode-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  border-radius: var(--radius-md);
}

.dark-mode-toggle:hover {
  color: var(--color-text-primary);
  background-color: var(--color-accent-primary-light);
}

/* ============================================
   8. HERO SECTION (Centered Bold Style)
   ============================================ */

.hero {
  padding-top: calc(72px + var(--space-24));
  padding-bottom: var(--space-24);
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

/* Geometric Background Pattern */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 80%, var(--color-accent-primary-light) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, var(--color-accent-primary-light) 0%, transparent 40%);
  opacity: 0.6;
  pointer-events: none;
}

/* Decorative Elements */
.hero-decoration {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero-decoration-1 {
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, var(--color-accent-primary-light) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  opacity: 0.5;
}

.hero-decoration-2 {
  width: 300px;
  height: 300px;
  border: 1px solid var(--color-border);
  bottom: 10%;
  left: -150px;
  opacity: 0.3;
}

.hero-decoration-3 {
  width: 80px;
  height: 80px;
  background-color: var(--color-accent-primary);
  bottom: 20%;
  right: 10%;
  opacity: 0.1;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
}

/* Centered Hero Layout */
.hero-content-centered {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-content-centered h1 {
  font-size: var(--font-size-6xl);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-6);
  letter-spacing: var(--letter-spacing-tight);
}

.hero-content-centered .hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-10);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* Split Hero Layout (for app pages) */
.hero-content-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero-text h1 {
  font-size: var(--font-size-5xl);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-6);
}

.hero-text p {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-8);
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-2xl);
  position: relative;
}

.hero-image img {
  border-radius: var(--radius-2xl);
}

.hero-image.hero-image-flat {
  box-shadow: none;
  border: none;
}

/* App-specific hero section */
.hero.hero-app {
  padding-top: calc(72px + var(--space-16));
  padding-bottom: var(--space-12);
  min-height: auto;
}

.hero.hero-app::before {
  opacity: 0.3;
}

@media (max-width: 768px) {
  .hero {
    padding-top: calc(72px + var(--space-16));
    padding-bottom: var(--space-16);
    min-height: auto;
  }

  .hero-content-centered h1 {
    font-size: var(--font-size-4xl);
  }

  .hero-content-centered .hero-subtitle {
    font-size: var(--font-size-lg);
  }

  .hero-content-split {
    grid-template-columns: 1fr;
    gap: var(--space-10);
    text-align: center;
  }

  .hero-text h1 {
    font-size: var(--font-size-4xl);
  }

  .hero-text p {
    font-size: var(--font-size-lg);
  }

  .hero.hero-app {
    padding-top: calc(72px + var(--space-10));
  }

  .section.section-reduced-top {
    padding-top: var(--space-8);
  }
}

/* ============================================
   9. STATISTICS SECTION
   ============================================ */

.stats-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  padding: var(--space-12) 0;
}

.stat-item {
  text-align: center;
  padding: var(--space-8);
  position: relative;
}

.stat-item::after {
  content: '';
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  width: 1px;
  height: 60%;
  background: linear-gradient(180deg, transparent 0%, var(--color-border) 50%, transparent 100%);
}

.stat-item:last-child::after {
  display: none;
}

.stat-number {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
  letter-spacing: var(--letter-spacing-tight);
}

.stat-label {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
}

@media (max-width: 768px) {
  .stats-container {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

  .stat-item {
    padding: var(--space-6);
  }

  .stat-item::after {
    display: none;
  }

  .stat-item:nth-child(1),
  .stat-item:nth-child(2) {
    border-bottom: 1px solid var(--color-border-light);
  }

  .stat-number {
    font-size: var(--font-size-4xl);
  }
}

/* ============================================
   10. GRID LAYOUTS
   ============================================ */

.grid {
  display: grid;
  gap: var(--space-8);
}

.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-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   11. FOOTER
   ============================================ */

.footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border-light);
  padding: var(--space-20) 0 var(--space-10) 0;
  position: relative;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-16);
  margin-bottom: var(--space-12);
}

.footer-section h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.footer-section p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  max-width: 320px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
}

/* ============================================
   12. UTILITY CLASSES
   ============================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }
.text-accent { color: var(--color-accent-primary); }

.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }

.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* ============================================
   13. PROFESSIONAL ANIMATIONS
   ============================================ */

/* Core Animation Keyframes */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Hero Section Animations */
.hero-animate-title {
  animation: fadeInUp 0.8s var(--ease-out-expo) forwards;
  opacity: 0;
}

.hero-animate-subtitle {
  animation: fadeInUp 0.8s var(--ease-out-expo) forwards;
  animation-delay: 150ms;
  opacity: 0;
}

.hero-animate-buttons {
  animation: fadeInUp 0.8s var(--ease-out-expo) forwards;
  animation-delay: 300ms;
  opacity: 0;
}

.hero-animate-image {
  animation: fadeInScale 1s var(--ease-out-expo) forwards;
  animation-delay: 400ms;
  opacity: 0;
}

/* Scroll Reveal Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}

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

/* Stagger Animation Classes */
.stagger-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s var(--ease-out-expo), transform 0.5s var(--ease-out-expo);
}

.stagger-item.animated {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for grid items */
.stagger-item:nth-child(1) { transition-delay: 0ms; }
.stagger-item:nth-child(2) { transition-delay: 80ms; }
.stagger-item:nth-child(3) { transition-delay: 160ms; }
.stagger-item:nth-child(4) { transition-delay: 240ms; }
.stagger-item:nth-child(5) { transition-delay: 320ms; }
.stagger-item:nth-child(6) { transition-delay: 400ms; }

/* Fade Classes */
.fade-in {
  animation: fadeIn 0.6s var(--ease-out-expo);
}

.fade-in-up {
  animation: fadeInUp 0.6s var(--ease-out-expo);
}

/* Counter Animation */
.stat-number {
  transition: transform var(--animation-fast) var(--ease-smooth);
}

.stat-number.counting {
  animation: pulse var(--animation-fast) ease-in-out;
}

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--color-accent-primary);
  z-index: 9999;
  transition: width 0.1s linear;
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background-color: var(--color-accent-primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-smooth);
  z-index: 999;
  box-shadow: var(--shadow-lg);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(201, 107, 75, 0.35);
}

/* Accessibility: Reduced Motion */
@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;
  }
}

/* Focus States for Accessibility */
*:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

/* GPU Acceleration for Smooth Animations */
.hero,
.card,
.btn,
.stagger-item,
.reveal {
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* ============================================
   14. SECTION-SPECIFIC STYLES
   ============================================ */

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-label {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
  color: var(--color-accent-primary);
  margin-bottom: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-accent-primary-light);
  border-radius: var(--radius-full);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-4);
  letter-spacing: var(--letter-spacing-tight);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--line-height-relaxed);
}

/* ============================================
   15. TESTIMONIALS SECTION
   ============================================ */

.testimonials-carousel-container {
  overflow: hidden;
  position: relative;
  margin: 0 calc(-1 * var(--container-padding));
  padding: var(--space-4) 0;
}

.testimonials-carousel-container::before,
.testimonials-carousel-container::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100px;
  z-index: 1;
  pointer-events: none;
}

.testimonials-carousel-container::before {
  left: 0;
  background: linear-gradient(to right, var(--color-bg-primary), transparent);
}

.testimonials-carousel-container::after {
  right: 0;
  background: linear-gradient(to left, var(--color-bg-primary), transparent);
}

.testimonials-carousel {
  display: flex;
  gap: var(--space-6);
  animation: scroll-testimonials 60s linear infinite;
  padding: 0 var(--container-padding);
}

.testimonials-carousel:hover {
  animation-play-state: paused;
}

@keyframes scroll-testimonials {
  0% { transform: translateX(0); }
  100% { transform: translateX(calc(-350px * 10 - var(--space-6) * 10)); }
}

.testimonial-card {
  min-width: 350px;
  max-width: 350px;
  flex-shrink: 0;
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-smooth);
}

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

.testimonial-stars {
  color: var(--color-accent-primary);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
  position: relative;
}

.testimonial-text::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: -5px;
  font-size: 3rem;
  color: var(--color-accent-primary-light);
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-author {
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-light);
}

.testimonial-author-name {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.testimonial-author-title {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .testimonial-card {
    min-width: 300px;
    max-width: 300px;
  }

  @keyframes scroll-testimonials {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-300px * 10 - var(--space-6) * 10)); }
  }
}

/* ============================================
   16. IMAGE STYLES
   ============================================ */

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

.app-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-sm);
  object-fit: cover;
}

.app-icon-large {
  width: 100px;
  height: 100px;
}

/* Dark Mode Image Adjustments */
.dark img {
  opacity: 0.95;
}

.dark .app-icon {
  background-color: var(--color-bg-white);
  box-shadow: var(--shadow-md);
}

/* ============================================
   17. FEATURE HIGHLIGHT SECTION
   ============================================ */

.feature-highlight {
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-2xl);
  padding: var(--space-12);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.feature-highlight-content {
  padding-right: var(--space-8);
}

.feature-highlight-image {
  text-align: center;
}

.feature-highlight-image img {
  max-width: 320px;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.feature-list {
  list-style: none;
  margin: var(--space-6) 0;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  color: var(--color-text-secondary);
}

.feature-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background-color: var(--color-accent-primary);
  border-radius: 50%;
  margin-top: 8px;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .feature-highlight {
    grid-template-columns: 1fr;
    padding: var(--space-8);
    text-align: center;
  }

  .feature-highlight-content {
    padding-right: 0;
  }

  .feature-list {
    text-align: left;
  }
}

/* ============================================
   18. BADGES
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  line-height: 1.4;
  border-radius: var(--radius-full);
  background-color: var(--color-accent-primary-light);
  color: var(--color-accent-primary);
}

.badge-new {
  background-color: var(--color-success);
  background-color: rgba(45, 138, 110, 0.1);
  color: var(--color-success);
}

/* ============================================
   19. CTA SECTION
   ============================================ */

.cta-section {
  text-align: center;
  padding: var(--space-20) 0;
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
}

.cta-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-6);
}

.cta-text {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  line-height: var(--line-height-relaxed);
}

/* ============================================
   20. FORM ELEMENTS
   ============================================ */

.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.form-control {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-family: var(--font-family-body);
  font-size: var(--font-size-base);
  background-color: var(--color-bg-white);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px var(--color-accent-primary-light);
}

.dark .form-control {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-border);
}

/* ============================================
   END OF PREMIUM DESIGN SYSTEM
   ============================================ */