/* AI Detector Pro - Design System
   Aesthetic: Refined modern minimalism with subtle sophistication
   Typography: Plus Jakarta Sans (body) + Sora (display)
*/

/* ========================================
   CSS Custom Properties
   ======================================== */
:root {
  /* Colors - Brand */
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-primary-subtle: #eff6ff;

  --color-accent-purple: #8b5cf6;
  --color-accent-purple-light: #a78bfa;
  --color-accent-green: #10b981;
  --color-accent-green-light: #34d399;

  /* Colors - Neutral */
  --color-white: #ffffff;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Typography */
  --font-display: 'Sora', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  /* Spacing */
  --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;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.15);
  --shadow-glow-purple: 0 0 40px rgba(139, 92, 246, 0.15);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Container */
  --container-max: 1280px;
  --container-padding: var(--space-6);
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-gray-700);
  background-color: var(--color-white);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-gray-900);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

p {
  color: var(--color-gray-600);
  line-height: 1.7;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========================================
   Layout
   ======================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-24) 0;
}

.section-alt {
  background-color: var(--color-gray-50);
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: var(--transition-base);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-md);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-gray-900);
}

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

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-600);
  transition: var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition-base);
  border-radius: var(--radius-full);
}

.nav-link:hover {
  color: var(--color-gray-900);
}

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

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

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

/* Language Selector */
.lang-selector {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-600);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.lang-btn:hover {
  border-color: var(--color-gray-300);
  color: var(--color-gray-900);
}

.lang-btn svg {
  width: 16px;
  height: 16px;
  transition: var(--transition-fast);
}

.lang-selector.active .lang-btn svg {
  transform: rotate(180deg);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 160px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition-base);
}

.lang-selector.active .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-dropdown a {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  transition: var(--transition-fast);
}

.lang-dropdown a:hover {
  background: var(--color-gray-50);
  color: var(--color-gray-900);
}

.lang-dropdown a:first-child {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.lang-dropdown a:last-child {
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--color-gray-700);
  border-radius: var(--radius-full);
  transition: var(--transition-base);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  padding: var(--space-6);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu .nav-links {
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
}

.mobile-menu .nav-link {
  font-size: var(--text-lg);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-xl);
  transition: var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-gray-700);
  border: 1px solid var(--color-gray-200);
}

.btn-secondary:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-300);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-2xl);
}

.btn-icon {
  width: 20px;
  height: 20px;
}

/* App Store Buttons */
.app-buttons {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.app-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  background: var(--color-gray-900);
  color: var(--color-white);
  border-radius: var(--radius-xl);
  transition: var(--transition-base);
}

.app-btn:hover {
  background: var(--color-gray-800);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.app-btn svg {
  width: 28px;
  height: 28px;
}

.app-btn-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
}

.app-btn-text span:first-child {
  font-size: var(--text-xs);
  opacity: 0.8;
}

.app-btn-text span:last-child {
  font-size: var(--text-sm);
  font-weight: 600;
}

/* Coming Soon Badge */
.coming-soon-wrapper {
  position: relative;
  display: inline-block;
}

.coming-soon-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: linear-gradient(135deg, var(--color-accent-purple) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
  animation: pulse-badge 2s infinite;
}

.coming-soon-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  animation: blink 1.5s infinite;
}

@keyframes pulse-badge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  padding: calc(72px + var(--space-24)) 0 var(--space-24);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, var(--color-primary-subtle) 0%, var(--color-white) 100%);
  z-index: -2;
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 100%;
  background: radial-gradient(ellipse, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
  z-index: -1;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(16, 185, 129, 0.06) 0%, transparent 70%);
  z-index: -1;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero-text {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-600);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent-green);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero h1 {
  font-size: var(--text-6xl);
  margin-bottom: var(--space-6);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-gray-600);
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.hero-note {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.hero-visual {
  position: relative;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-3xl);
  overflow: hidden;
  box-shadow: var(--shadow-2xl);
  background: linear-gradient(135deg, var(--color-primary-subtle) 0%, var(--color-white) 100%);
  padding: var(--space-8);
}

.hero-mockup {
  width: 100%;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
}

.hero-float-card {
  position: absolute;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  box-shadow: var(--shadow-lg);
  animation: float 6s ease-in-out infinite;
}

.hero-float-card.card-1 {
  top: 10%;
  left: -10%;
  animation-delay: 0s;
}

.hero-float-card.card-2 {
  bottom: 20%;
  right: -5%;
  animation-delay: 2s;
}

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

.float-card-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
}

.float-card-icon svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

.float-card-text {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-900);
}

.float-card-value {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

/* ========================================
   Stats Section
   ======================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.stat-item {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
}

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

.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  font-weight: 500;
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .stat-number {
    font-size: var(--text-3xl);
  }
}

/* ========================================
   Features Section
   ======================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  transition: var(--transition-base);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-primary-subtle) 0%, rgba(139, 92, 246, 0.1) 100%);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.feature-icon.purple svg {
  color: var(--color-accent-purple);
}

.feature-icon.green svg {
  color: var(--color-accent-green);
}

.feature-card h3 {
  margin-bottom: var(--space-3);
}

.feature-card p {
  font-size: var(--text-sm);
  line-height: 1.7;
}

/* ========================================
   AI Models Section
   ======================================== */
.ai-models-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.ai-model-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  text-align: center;
  transition: var(--transition-base);
}

.ai-model-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.ai-model-card.more {
  background: linear-gradient(135deg, var(--color-primary-subtle) 0%, rgba(139, 92, 246, 0.1) 100%);
  border-color: transparent;
}

.ai-model-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary-subtle) 0%, rgba(139, 92, 246, 0.1) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-3);
}

.ai-model-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.ai-model-icon.claude svg {
  color: #D97706;
}

.ai-model-icon.gemini svg {
  color: #4285F4;
}

.ai-model-icon.llama svg {
  color: #6366F1;
}

.ai-model-icon.midjourney svg {
  color: var(--color-accent-purple);
}

.ai-model-icon.dalle svg {
  color: var(--color-accent-green);
}

.ai-model-icon.stable svg {
  color: #EC4899;
}

.ai-model-name {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-gray-900);
  margin-bottom: var(--space-1);
}

.ai-model-versions {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

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

@media (max-width: 480px) {
  .ai-models-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }
}

/* ========================================
   How It Works Section
   ======================================== */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-16);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

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

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: calc(16.67% + 24px);
  right: calc(16.67% + 24px);
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent-purple) 50%, var(--color-accent-green) 100%);
  border-radius: var(--radius-full);
}

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

.step-number {
  width: 80px;
  height: 80px;
  background: var(--color-white);
  border: 2px solid var(--color-gray-100);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  position: relative;
  z-index: 1;
  transition: var(--transition-base);
}

.step:hover .step-number {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.1);
}

.step h3 {
  margin-bottom: var(--space-2);
}

.step p {
  font-size: var(--text-sm);
}

/* ========================================
   Use Cases Section
   ======================================== */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.use-case-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  text-align: center;
  transition: var(--transition-base);
}

.use-case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.use-case-icon {
  width: 64px;
  height: 64px;
  background: var(--color-gray-50);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  font-size: var(--text-3xl);
}

.use-case-card h4 {
  margin-bottom: var(--space-2);
  font-size: var(--text-lg);
}

.use-case-card p {
  font-size: var(--text-sm);
}

/* ========================================
   App Showcase Section
   ======================================== */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  align-items: end;
}

.showcase-item {
  text-align: center;
  transition: var(--transition-base);
}

.showcase-item:hover {
  transform: translateY(-8px);
}

.showcase-item.featured {
  transform: scale(1.05);
}

.showcase-item.featured:hover {
  transform: scale(1.05) translateY(-8px);
}

.showcase-image {
  background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-gray-50) 100%);
  border-radius: var(--radius-2xl);
  padding: var(--space-2);
  box-shadow: var(--shadow-lg);
  transition: var(--transition-base);
  overflow: hidden;
}

.showcase-item:hover .showcase-image {
  box-shadow: var(--shadow-2xl);
}

.showcase-item.featured .showcase-image {
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.showcase-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  display: block;
}

.showcase-label {
  margin-top: var(--space-4);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-gray-700);
}

@media (max-width: 992px) {
  .showcase-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }

  .showcase-item.featured {
    transform: scale(1);
  }

  .showcase-item.featured:hover {
    transform: translateY(-8px);
  }
}

@media (max-width: 480px) {
  .showcase-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }
}

/* ========================================
   Why Choose Us / Benefits Section
   ======================================== */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.benefit-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  transition: var(--transition-base);
}

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

.benefit-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary-subtle) 0%, rgba(37, 99, 235, 0.15) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.benefit-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.benefit-icon.purple {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(139, 92, 246, 0.2) 100%);
}

.benefit-icon.purple svg {
  color: var(--color-accent-purple);
}

.benefit-icon.green {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.2) 100%);
}

.benefit-icon.green svg {
  color: var(--color-accent-green);
}

.benefit-card h4 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.benefit-card p {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  line-height: 1.6;
}

@media (max-width: 992px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* ========================================
   Pricing Section
   ======================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.pricing-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  position: relative;
  transition: var(--transition-base);
}

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

.pricing-card.featured {
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-purple) 100%);
  color: var(--color-white);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  white-space: nowrap;
}

.pricing-header {
  text-align: center;
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-gray-100);
  margin-bottom: var(--space-6);
}

.pricing-name {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--space-2);
}

.pricing-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--space-1);
}

.pricing-currency {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-gray-400);
}

.pricing-amount {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  font-weight: 700;
  color: var(--color-gray-900);
}

.pricing-period {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.pricing-features {
  margin-bottom: var(--space-6);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

.pricing-features li svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.pricing-features li svg.check {
  color: var(--color-accent-green);
}

.pricing-features li svg.x {
  color: var(--color-gray-300);
}

.pricing-features li.disabled {
  color: var(--color-gray-400);
}

.pricing-card .btn {
  width: 100%;
}

/* ========================================
   FAQ Preview Section
   ======================================== */
.faq-preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.faq-preview-item {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  transition: var(--transition-base);
}

.faq-preview-item:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.faq-preview-item h4 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
  color: var(--color-gray-900);
}

.faq-preview-item p {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .faq-preview-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
  background: linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-gray-800) 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse, rgba(37, 99, 235, 0.15) 0%, transparent 60%);
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse, rgba(139, 92, 246, 0.1) 0%, transparent 60%);
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-content h2 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.cta-content p {
  color: var(--color-gray-400);
  font-size: var(--text-lg);
  margin-bottom: var(--space-8);
}

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

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--color-gray-50);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--color-gray-200);
}

.footer-brand p {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  max-width: 280px;
}

.footer-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  transition: var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
}

.footer-copyright {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.footer-social {
  display: flex;
  gap: var(--space-4);
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  transition: var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.footer-social svg {
  width: 20px;
  height: 20px;
}

/* ========================================
   Feature Detail Section (features.html)
   ======================================== */
.feature-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  padding: var(--space-16) 0;
}

.feature-detail:nth-child(even) {
  direction: rtl;
}

.feature-detail:nth-child(even) > * {
  direction: ltr;
}

.feature-detail-content h2 {
  margin-bottom: var(--space-4);
}

.feature-detail-content p {
  margin-bottom: var(--space-6);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

.feature-list li svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent-green);
  flex-shrink: 0;
}

.feature-detail-image {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.feature-detail-image img {
  width: 100%;
}

/* ========================================
   FAQ Section
   ======================================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-gray-200);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6) 0;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-gray-900);
  text-align: left;
  transition: var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-question svg {
  width: 24px;
  height: 24px;
  color: var(--color-gray-400);
  transition: var(--transition-base);
  flex-shrink: 0;
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding-bottom: var(--space-6);
  font-size: var(--text-base);
  line-height: 1.8;
}

/* ========================================
   Legal Pages
   ======================================== */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: calc(72px + var(--space-16)) 0 var(--space-16);
}

.legal-content h1 {
  margin-bottom: var(--space-4);
}

.legal-meta {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-gray-200);
}

.legal-content h2 {
  font-size: var(--text-2xl);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

.legal-content h3 {
  font-size: var(--text-xl);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.legal-content p {
  margin-bottom: var(--space-4);
}

.legal-content ul, .legal-content ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
}

.legal-content li {
  margin-bottom: var(--space-2);
  color: var(--color-gray-600);
  list-style: disc;
}

.legal-content ol li {
  list-style: decimal;
}

.legal-content a {
  color: var(--color-primary);
  text-decoration: underline;
}

.legal-content a:hover {
  color: var(--color-primary-dark);
}

/* ========================================
   Animations
   ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slower), transform var(--transition-slower);
}

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

.fade-in-delay-1 { transition-delay: 100ms; }
.fade-in-delay-2 { transition-delay: 200ms; }
.fade-in-delay-3 { transition-delay: 300ms; }
.fade-in-delay-4 { transition-delay: 400ms; }

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1200px) {
  :root {
    --text-6xl: 3rem;
    --text-5xl: 2.5rem;
  }

  .hero-content {
    gap: var(--space-12);
  }

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

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

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

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

@media (max-width: 768px) {
  :root {
    --text-6xl: 2.5rem;
    --text-5xl: 2rem;
    --text-4xl: 1.75rem;
    --container-padding: var(--space-4);
  }

  .section {
    padding: var(--space-16) 0;
  }

  .nav-links {
    display: none;
  }

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

  .mobile-menu {
    display: block;
  }

  .hero {
    padding: calc(72px + var(--space-12)) 0 var(--space-12);
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text {
    max-width: 100%;
  }

  .hero-cta {
    align-items: center;
  }

  .app-buttons {
    justify-content: center;
  }

  .hero-visual {
    max-width: 400px;
    margin: 0 auto;
  }

  .hero-float-card {
    display: none;
  }

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

  .steps {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .steps::before {
    display: none;
  }

  .use-cases-grid {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .feature-detail {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .feature-detail:nth-child(even) {
    direction: ltr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .app-buttons {
    flex-direction: column;
    width: 100%;
  }

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

  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }

  .cta-buttons .app-btn {
    width: 100%;
  }
}

/* ========================================
   RTL Support (Arabic)
   ======================================== */
[dir="rtl"] {
  direction: rtl;
  text-align: right;
}

[dir="rtl"] .nav {
  flex-direction: row-reverse;
}

[dir="rtl"] .feature-detail:nth-child(even) {
  direction: ltr;
}

[dir="rtl"] .feature-detail:nth-child(odd) {
  direction: rtl;
}

[dir="rtl"] .feature-list li,
[dir="rtl"] .pricing-features li {
  flex-direction: row-reverse;
}

[dir="rtl"] .faq-question {
  text-align: right;
}