/* ============================================================
   KURAN-I KERİM — TEK SAYFA ULTRA YÜKSEK ÇÖZÜNÜRLÜK
   Premium İslami Tasarım Sistemi
   ============================================================ */

/* === Google Fonts === */
@import url('https://fonts.googleapis.com/css2?family=Amiri:ital,wght@0,400;0,700;1,400;1,700&family=Inter:wght@300;400;500;600;700;800;900&family=Noto+Naskh+Arabic:wght@400;500;600;700&display=swap');

/* === CSS Custom Properties === */
:root {
  /* Colors — Deep Islamic Palette */
  --color-bg-primary: #0a0e1a;
  --color-bg-secondary: #111827;
  --color-bg-tertiary: #1a2235;
  --color-bg-card: rgba(26, 34, 53, 0.7);
  --color-bg-card-hover: rgba(36, 48, 75, 0.8);
  --color-bg-glass: rgba(255, 255, 255, 0.03);
  --color-bg-glass-hover: rgba(255, 255, 255, 0.06);

  /* Gold Accent Palette */
  --color-gold-100: #fef3c7;
  --color-gold-200: #fde68a;
  --color-gold-300: #fcd34d;
  --color-gold-400: #f59e0b;
  --color-gold-500: #d4a017;
  --color-gold-600: #b8860b;
  --color-gold-gradient: linear-gradient(135deg, #f59e0b, #d4a017, #b8860b, #d4a017);
  --color-gold-shine: linear-gradient(135deg, #fef3c7, #fcd34d, #f59e0b, #fcd34d, #fef3c7);
  --color-gold-text: linear-gradient(135deg, #fcd34d, #f59e0b, #d4a017);

  /* Emerald Accent */
  --color-emerald-400: #34d399;
  --color-emerald-500: #10b981;
  --color-emerald-600: #059669;
  --color-emerald-glow: rgba(16, 185, 129, 0.15);

  /* Text */
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-text-gold: #fcd34d;

  /* Borders */
  --color-border: rgba(255, 255, 255, 0.06);
  --color-border-gold: rgba(212, 160, 23, 0.3);
  --color-border-gold-hover: rgba(212, 160, 23, 0.6);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.6);
  --shadow-gold: 0 0 30px rgba(212, 160, 23, 0.15);
  --shadow-gold-lg: 0 0 60px rgba(212, 160, 23, 0.2);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-arabic: 'Amiri', 'Noto Naskh Arabic', 'Traditional Arabic', 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: 1.875rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;
  --font-size-6xl: 4.5rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

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

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;
}

/* === 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-primary);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* === Scrollbar Styling === */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-gold-600);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gold-500);
}

/* === Animated Background === */
.bg-pattern {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bg-pattern::before {
  content: '';
  position: absolute;
  width: 200%;
  height: 200%;
  top: -50%;
  left: -50%;
  background:
    radial-gradient(circle at 20% 30%, rgba(212, 160, 23, 0.03) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(16, 185, 129, 0.02) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(212, 160, 23, 0.015) 0%, transparent 60%);
  animation: bgFloat 30s ease-in-out infinite;
}

.bg-pattern::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23d4a017' fill-opacity='0.015'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

@keyframes bgFloat {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(-2%, 1%) rotate(0.5deg); }
  50% { transform: translate(1%, -1%) rotate(-0.5deg); }
  75% { transform: translate(-1%, 2%) rotate(0.3deg); }
}

/* === Floating Particles === */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--color-gold-400);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat linear infinite;
}

.particle:nth-child(1) { left: 10%; animation-duration: 15s; animation-delay: 0s; }
.particle:nth-child(2) { left: 25%; animation-duration: 20s; animation-delay: 3s; }
.particle:nth-child(3) { left: 40%; animation-duration: 18s; animation-delay: 6s; }
.particle:nth-child(4) { left: 55%; animation-duration: 22s; animation-delay: 2s; }
.particle:nth-child(5) { left: 70%; animation-duration: 16s; animation-delay: 8s; }
.particle:nth-child(6) { left: 85%; animation-duration: 19s; animation-delay: 4s; }
.particle:nth-child(7) { left: 15%; animation-duration: 24s; animation-delay: 10s; }
.particle:nth-child(8) { left: 60%; animation-duration: 17s; animation-delay: 1s; }

@keyframes particleFloat {
  0% {
    transform: translateY(100vh) scale(0);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
    transform: translateY(90vh) scale(1);
  }
  90% {
    opacity: 0.3;
  }
  100% {
    transform: translateY(-10vh) scale(0.5);
    opacity: 0;
  }
}

/* === Header / Navbar === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(10, 14, 26, 0.8);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-base);
}

.header.scrolled {
  background: rgba(10, 14, 26, 0.95);
  box-shadow: var(--shadow-lg);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  text-decoration: none;
  color: var(--color-text-primary);
}

.logo-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-gold-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-arabic);
  font-size: 1.5rem;
  color: var(--color-bg-primary);
  font-weight: 700;
  box-shadow: var(--shadow-gold);
}

.logo-text {
  font-size: var(--font-size-lg);
  font-weight: 700;
  background: var(--color-gold-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: var(--transition-base);
  position: relative;
  padding-bottom: 4px;
}

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

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

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

.nav-cta {
  padding: 0.5rem 1.25rem;
  background: var(--color-gold-gradient);
  color: var(--color-bg-primary) !important;
  border-radius: var(--radius-full);
  font-weight: 600 !important;
  -webkit-text-fill-color: var(--color-bg-primary) !important;
  transition: var(--transition-base);
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
  padding: var(--spacing-sm);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-gold-400);
  margin: 5px 0;
  transition: var(--transition-base);
  border-radius: var(--radius-full);
}

/* === Hero Section === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--header-height) + var(--spacing-3xl)) var(--spacing-xl) var(--spacing-3xl);
  z-index: 1;
}

.hero-content {
  max-width: 800px;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 0.4rem 1.2rem;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border-gold);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  color: var(--color-gold-300);
  font-weight: 500;
  margin-bottom: var(--spacing-xl);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  animation: fadeInDown 0.8s ease-out;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-emerald-400);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-bismillah {
  font-family: var(--font-arabic);
  font-size: var(--font-size-4xl);
  color: var(--color-gold-300);
  margin-bottom: var(--spacing-lg);
  animation: fadeInDown 0.8s ease-out 0.1s both;
  text-shadow: 0 0 40px rgba(212, 160, 23, 0.2);
  direction: rtl;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-title .gold {
  background: var(--color-gold-shine);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 100%;
  animation: goldShine 4s ease-in-out infinite;
}

@keyframes goldShine {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
  line-height: 1.7;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 0.875rem 2rem;
  border-radius: var(--radius-full);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--color-gold-gradient);
  color: var(--color-bg-primary);
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-gold-lg);
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-slow);
}

.btn-primary:hover::after {
  left: 100%;
}

.btn-secondary {
  background: var(--color-bg-glass);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--color-bg-glass-hover);
  border-color: var(--color-border-gold);
  transform: translateY(-3px);
}

.btn-icon {
  font-size: 1.2em;
}

/* === Stats Strip === */
.stats {
  position: relative;
  z-index: 1;
  padding: var(--spacing-2xl) var(--spacing-xl);
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stats-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-lg);
}

.stat-number {
  font-size: var(--font-size-4xl);
  font-weight: 900;
  background: var(--color-gold-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
  font-weight: 500;
}

/* === Section Layout === */
.section {
  position: relative;
  z-index: 1;
  padding: var(--spacing-4xl) var(--spacing-xl);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-3xl);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 0.3rem 1rem;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  color: var(--color-gold-300);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-lg);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.section-desc {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* === Download Cards === */
.downloads-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.download-card {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  backdrop-filter: blur(10px);
  transition: var(--transition-base);
  overflow: hidden;
  cursor: pointer;
}

.download-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-gold-gradient);
  opacity: 0;
  transition: var(--transition-base);
}

.download-card:hover {
  border-color: var(--color-border-gold);
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold);
}

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

.download-card.featured {
  border-color: var(--color-border-gold);
  background: var(--color-bg-card-hover);
}

.download-card.featured::before {
  opacity: 1;
}

.card-badge {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  padding: 0.2rem 0.8rem;
  background: var(--color-gold-gradient);
  color: var(--color-bg-primary);
  font-size: var(--font-size-xs);
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  transition: var(--transition-base);
}

.download-card:hover .card-icon {
  background: rgba(212, 160, 23, 0.1);
  border-color: var(--color-border-gold);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.card-resolution {
  font-size: var(--font-size-sm);
  color: var(--color-gold-300);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.card-specs {
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.card-specs li {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  padding: var(--spacing-xs) 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.card-specs li::before {
  content: '✦';
  color: var(--color-gold-400);
  font-size: 0.7em;
}

.card-download-btn {
  width: 100%;
  padding: 0.75rem;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.card-download-btn:hover {
  background: var(--color-gold-gradient);
  color: var(--color-bg-primary);
  border-color: transparent;
}

.card-download-btn .download-arrow {
  transition: var(--transition-base);
}

.card-download-btn:hover .download-arrow {
  transform: translateY(2px);
}

/* === How It Works Section === */
.how-it-works {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.steps-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-2xl);
}

.step-card {
  text-align: center;
  padding: var(--spacing-2xl);
  position: relative;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-bg-glass);
  border: 2px solid var(--color-border-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  font-size: var(--font-size-lg);
  font-weight: 800;
  color: var(--color-gold-300);
}

.step-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.step-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* === Preview Section === */
.preview-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.preview-wrapper {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  overflow: hidden;
}

.preview-frame {
  width: 100%;
  aspect-ratio: 1 / 1.414;
  max-height: 600px;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-xl);
}

.preview-frame canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.preview-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.preview-btn {
  padding: 0.5rem 1rem;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: var(--transition-base);
}

.preview-btn:hover {
  border-color: var(--color-border-gold);
  background: var(--color-bg-glass-hover);
}

.preview-btn.active {
  background: var(--color-gold-gradient);
  color: var(--color-bg-primary);
  border-color: transparent;
}

.zoom-level {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: 600;
  min-width: 60px;
  text-align: center;
}

/* === Info / About Section === */
.info-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-2xl);
}

.info-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  backdrop-filter: blur(10px);
  transition: var(--transition-base);
}

.info-card:hover {
  border-color: var(--color-border-gold);
}

.info-card-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-lg);
}

.info-card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.info-card-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* === Progress Modal === */
.progress-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 14, 26, 0.9);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-base);
}

.progress-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.progress-modal {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-gold);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3xl);
  max-width: 500px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-gold-lg);
  transform: scale(0.9);
  transition: var(--transition-spring);
}

.progress-overlay.active .progress-modal {
  transform: scale(1);
}

.progress-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
  animation: spin 2s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.progress-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.progress-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

.progress-bar-container {
  width: 100%;
  height: 8px;
  background: var(--color-bg-glass);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--spacing-md);
}

.progress-bar {
  height: 100%;
  background: var(--color-gold-gradient);
  border-radius: var(--radius-full);
  width: 0%;
  transition: width 0.3s ease;
}

.progress-percent {
  font-size: var(--font-size-sm);
  color: var(--color-gold-300);
  font-weight: 600;
}

.progress-cancel-btn {
  margin-top: var(--spacing-lg);
  padding: 0.5rem 1.5rem;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: var(--transition-base);
}

.progress-cancel-btn:hover {
  border-color: #ef4444;
  color: #ef4444;
}

/* === Footer === */
.footer {
  position: relative;
  z-index: 1;
  padding: var(--spacing-3xl) var(--spacing-xl) var(--spacing-xl);
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-bismillah {
  font-family: var(--font-arabic);
  font-size: var(--font-size-2xl);
  color: var(--color-gold-400);
  margin-bottom: var(--spacing-lg);
  direction: rtl;
}

.footer-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  list-style: none;
  margin-bottom: var(--spacing-lg);
}

.footer-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-gold-300);
}

.footer-copyright {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

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

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* === Loading Skeleton === */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-glass) 25%,
    var(--color-bg-glass-hover) 50%,
    var(--color-bg-glass) 75%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes skeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* === Tooltip === */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-fast);
  z-index: 100;
}

.tooltip:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* === Responsive === */
@media (max-width: 1024px) {
  .downloads-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--spacing-xl);
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
  }

  .nav-links.open {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-bismillah {
    font-size: var(--font-size-2xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

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

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

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

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

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

  .btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }

  .stat-number {
    font-size: var(--font-size-2xl);
  }
}