/* Quran Kareem - Apple Inspired Design System (Design.md) */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Amiri:wght@400;700&display=swap');

:root {
  /* Apple Design System Tokens */
  --color-primary: #0071e3;
  --color-primary-hover: #0077ed;
  --color-primary-dark: #2997ff;
  
  --color-bg-dark: #000000;
  --color-bg-light: #f5f5f7;
  --color-bg-white: #ffffff;
  
  --color-surface-dark: #1d1d1f;
  --color-surface-elevated: #272729;
  --color-surface-light: #f5f5f7;
  
  --color-text-dark-primary: #f5f5f7;
  --color-text-dark-secondary: #86868b;
  --color-text-light-primary: #1d1d1f;
  --color-text-light-secondary: #6e6e73;
  
  --color-border-dark: #333336;
  --color-border-light: #d2d2d7;
  
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", sans-serif;
  --font-arabic: "Amiri", serif;
  
  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 980px;
  --radius-full: 9999px;
  
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-card-hover: 0 12px 36px rgba(0, 0, 0, 0.16);
  --shadow-phone: 0 25px 60px rgba(0, 0, 0, 0.4);
  
  --nav-height: 52px;
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Core Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--color-bg-dark);
  color: var(--color-text-dark-primary);
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  line-height: 1.5;
}

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

a:hover {
  opacity: 0.88;
}

/* Glassmorphism Header */
.header-glass {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
}

.nav-container {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 19px;
  color: var(--color-text-dark-primary);
  letter-spacing: -0.015em;
}

.nav-brand img {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-dark-secondary);
  font-size: 14px;
  font-weight: 400;
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text-dark-primary);
}

.btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary);
  color: #ffffff !important;
  font-size: 14px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-pill:hover {
  background-color: var(--color-primary-hover);
  transform: scale(1.02);
  opacity: 1;
}

.btn-pill-secondary {
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--color-text-dark-primary) !important;
  backdrop-filter: blur(10px);
}

.btn-pill-secondary:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.btn-pill-outline {
  background-color: transparent;
  border: 1px solid var(--color-primary);
  color: var(--color-primary) !important;
}

.btn-pill-outline:hover {
  background-color: var(--color-primary);
  color: #ffffff !important;
}

/* Sections Base & Pacing */
.section {
  padding: 100px 24px;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
}

/* Hero Section (Cinematic Dark #000000) */
.hero-section {
  padding-top: 140px;
  padding-bottom: 90px;
  text-align: center;
  background-color: var(--color-bg-dark);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background-color: rgba(0, 113, 227, 0.15);
  color: var(--color-primary-dark);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 56px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.08;
  max-width: 820px;
  margin: 0 auto 20px;
  background: linear-gradient(180deg, #ffffff 0%, #a1a1a6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 21px;
  font-weight: 400;
  color: var(--color-text-dark-secondary);
  max-width: 660px;
  margin: 0 auto 36px;
  line-height: 1.45;
}

.hero-ctas {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.hero-mockup-frame {
  position: relative;
  max-width: 320px;
  margin: 0 auto;
  border-radius: 40px;
  padding: 12px;
  background: #1d1d1f;
  box-shadow: 0 0 0 2px #333336, var(--shadow-phone);
}

.hero-mockup-screen {
  width: 100%;
  border-radius: 30px;
  overflow: hidden;
  display: block;
}

.hero-mockup-screen img {
  width: 100%;
  height: auto;
  display: block;
}

/* Features Grid Section (Light Section #f5f5f7) */
.features-section {
  background-color: var(--color-bg-light);
  color: var(--color-text-light-primary);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-title.dark-text {
  color: var(--color-text-light-primary);
}

.section-subtitle {
  font-size: 19px;
  color: var(--color-text-light-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.card-feature {
  background: var(--color-bg-white);
  padding: 32px;
  border-radius: var(--radius-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: rgba(0, 113, 227, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
  color: var(--color-primary);
}

.card-feature h3 {
  font-size: 21px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text-light-primary);
}

.card-feature p {
  font-size: 16px;
  color: var(--color-text-light-secondary);
  line-height: 1.5;
}

/* Screenshots Showcase (Dark Section #000000) */
.showcase-section {
  background-color: var(--color-bg-dark);
  color: var(--color-text-dark-primary);
  text-align: center;
}

.screenshots-scroll {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding: 20px 10px 40px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.screenshots-scroll::-webkit-scrollbar {
  height: 8px;
}

.screenshots-scroll::-webkit-scrollbar-track {
  background: #111;
  border-radius: 4px;
}

.screenshots-scroll::-webkit-scrollbar-thumb {
  background: #333;
  border-radius: 4px;
}

.screenshot-item {
  scroll-snap-align: center;
  flex: 0 0 260px;
  border-radius: 24px;
  overflow: hidden;
  background: var(--color-surface-dark);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  transition: transform var(--transition-normal);
  cursor: pointer;
}

.screenshot-item:hover {
  transform: scale(1.04);
}

.screenshot-item img {
  width: 100%;
  height: auto;
  display: block;
}

/* Download Section (Light Section #ffffff) */
.download-section {
  background-color: var(--color-bg-white);
  color: var(--color-text-light-primary);
  text-align: center;
}

.download-box {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 60px 32px;
  max-width: 860px;
  margin: 0 auto;
}

.download-box h2 {
  font-size: 36px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text-light-primary);
}

.download-box p {
  font-size: 17px;
  color: var(--color-text-light-secondary);
  max-width: 580px;
  margin: 0 auto 36px;
}

.download-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Document Pages (Privacy Policy & Terms) */
.doc-page {
  background-color: var(--color-bg-white);
  color: var(--color-text-light-primary);
  padding-top: 120px;
  padding-bottom: 90px;
  min-height: 100vh;
}

.doc-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.doc-header {
  border-bottom: 1px solid var(--color-border-light);
  padding-bottom: 24px;
  margin-bottom: 40px;
}

.doc-title {
  font-size: 40px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text-light-primary);
}

.doc-meta {
  font-size: 14px;
  color: var(--color-text-light-secondary);
}

.doc-content h2 {
  font-size: 24px;
  font-weight: 600;
  margin: 32px 0 12px;
  color: var(--color-text-light-primary);
}

.doc-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 20px 0 8px;
  color: var(--color-text-light-primary);
}

.doc-content p, .doc-content ul {
  font-size: 16px;
  line-height: 1.6;
  color: #333336;
  margin-bottom: 16px;
}

.doc-content ul {
  padding-left: 24px;
}

.doc-content li {
  margin-bottom: 8px;
}

.badge-solana {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background-color: rgba(20, 241, 149, 0.1);
  color: #10b981;
  font-size: 12px;
  font-weight: 600;
  margin-top: 12px;
}

/* Footer Section */
.footer-dark {
  background-color: var(--color-surface-dark);
  color: var(--color-text-dark-secondary);
  padding: 60px 24px 40px;
  border-top: 1px solid var(--color-border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: var(--color-text-dark-primary);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--color-text-dark-secondary);
  font-size: 14px;
}

.footer-col a:hover {
  color: var(--color-text-dark-primary);
}

.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  flex-wrap: wrap;
  gap: 16px;
}

/* Lightbox Modal */
.modal-lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(15px);
  align-items: center;
  justify-content: center;
}

.modal-lightbox.active {
  display: flex;
}

.modal-content {
  max-width: 380px;
  width: 90%;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--shadow-phone);
}

.modal-content img {
  width: 100%;
  height: auto;
  display: block;
}

.modal-close {
  position: absolute;
  top: 24px;
  right: 24px;
  color: #fff;
  font-size: 32px;
  cursor: pointer;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .hero-title {
    font-size: 38px;
  }
  .hero-subtitle {
    font-size: 17px;
  }
  .section-title {
    font-size: 30px;
  }
  .nav-links {
    display: none; /* simple mobile view */
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}