/* ============================================
   TP MEDIA Landing Page - Premium Design System
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --color-bg-dark: #0a0e27;
  --color-bg-card: #111638;
  --color-bg-card-hover: #171d4a;
  --color-surface: #1a2050;
  --color-primary: #6c63ff;
  --color-primary-light: #8b83ff;
  --color-secondary: #00d4ff;
  --color-accent: #ff6b9d;
  --color-text-primary: #ffffff;
  --color-text-secondary: #a8b2d1;
  --color-text-muted: #6b7394;
  --color-gradient-1: linear-gradient(135deg, #6c63ff 0%, #00d4ff 100%);
  --color-gradient-2: linear-gradient(135deg, #ff6b9d 0%, #ffa259 100%);
  --color-gradient-3: linear-gradient(135deg, #0a0e27 0%, #1a2050 50%, #0a0e27 100%);
  --color-border: rgba(108, 99, 255, 0.15);
  --color-glow: rgba(108, 99, 255, 0.3);
  --font-heading: 'Inter', 'Roboto', sans-serif;
  --font-body: 'Inter', 'Roboto', sans-serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(108, 99, 255, 0.15);
  --shadow-hover: 0 16px 48px rgba(108, 99, 255, 0.25);
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-bounce: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-dark);
  color: var(--color-text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-smooth);
}

ul,
li {
  list-style: none;
}

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

/* --- Utility --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-primary-light);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--color-gradient-1);
  border-radius: 2px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-title .highlight {
  background: var(--color-gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 17px;
  color: var(--color-text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

.text-center {
  text-align: center;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

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

.bg-particles .particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-primary);
  border-radius: 50%;
  opacity: 0.15;
  animation: float-particle 15s infinite ease-in-out;
}

.bg-particles .particle:nth-child(1) {
  top: 10%;
  left: 15%;
  animation-delay: 0s;
  animation-duration: 20s;
}

.bg-particles .particle:nth-child(2) {
  top: 30%;
  left: 80%;
  animation-delay: 2s;
  animation-duration: 18s;
}

.bg-particles .particle:nth-child(3) {
  top: 60%;
  left: 40%;
  animation-delay: 4s;
  animation-duration: 22s;
}

.bg-particles .particle:nth-child(4) {
  top: 80%;
  left: 70%;
  animation-delay: 1s;
  animation-duration: 16s;
}

.bg-particles .particle:nth-child(5) {
  top: 20%;
  left: 50%;
  animation-delay: 3s;
  animation-duration: 19s;
}

.bg-particles .particle:nth-child(6) {
  top: 50%;
  left: 20%;
  animation-delay: 5s;
  animation-duration: 21s;
}

.bg-particles .particle:nth-child(7) {
  top: 70%;
  left: 90%;
  animation-delay: 6s;
  animation-duration: 17s;
}

.bg-particles .particle:nth-child(8) {
  top: 40%;
  left: 60%;
  animation-delay: 7s;
  animation-duration: 23s;
}

@keyframes float-particle {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.15;
  }

  25% {
    transform: translate(30px, -50px) scale(1.5);
    opacity: 0.3;
  }

  50% {
    transform: translate(-20px, 40px) scale(0.8);
    opacity: 0.1;
  }

  75% {
    transform: translate(50px, 20px) scale(1.2);
    opacity: 0.25;
  }
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition-smooth);
  backdrop-filter: blur(0px);
}

.navbar.scrolled {
  background: rgba(10, 14, 39, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 10px 0;
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.navbar-brand .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--color-gradient-1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 900;
  color: #fff;
}

.navbar-brand .logo-svg {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.navbar-nav a:not(.navbar-cta) {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: 4px 0;
}

.navbar-nav a:not(.navbar-cta)::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gradient-1);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.navbar-nav a:not(.navbar-cta):hover,
.navbar-nav a:not(.navbar-cta).active {
  color: var(--color-text-primary);
}

.navbar-nav a:not(.navbar-cta):hover::after,
.navbar-nav a:not(.navbar-cta).active::after {
  width: 100%;
}

.navbar-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 40px;
  background: var(--color-gradient-1);
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 600;
  color: #fff !important;
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 15px rgba(108, 99, 255, 0.3);
}

.navbar-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(108, 99, 255, 0.5);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: transparent;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: var(--transition-smooth);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -25%;
  width: 80%;
  height: 80%;
  background: radial-gradient(circle, rgba(108, 99, 255, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse-glow 8s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -15%;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse-glow 10s ease-in-out infinite reverse;
}

@keyframes pulse-glow {

  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }

  50% {
    transform: scale(1.1);
    opacity: 0.6;
  }
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(108, 99, 255, 0.1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary-light);
  margin-bottom: 24px;
  animation: fade-in-up 0.8s ease forwards;
}

.hero-badge .badge-dot {
  width: 8px;
  height: 8px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(36px, 5.5vw, 64px);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -1.5px;
  animation: fade-in-up 0.8s ease 0.1s forwards;
  opacity: 0;
}

.hero h1 .gradient-text {
  background: var(--color-gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 36px;
  animation: fade-in-up 0.8s ease 0.2s forwards;
  opacity: 0;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fade-in-up 0.8s ease 0.3s forwards;
  opacity: 0;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: var(--color-gradient-1);
  border: none;
  border-radius: var(--radius-lg);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 20px rgba(108, 99, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 35px rgba(108, 99, 255, 0.5);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text-primary);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  background: rgba(108, 99, 255, 0.05);
  transform: translateY(-3px);
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  animation: fade-in-up 0.8s ease 0.4s forwards;
  opacity: 0;
}

.stat-item {
  text-align: left;
}

.stat-number {
  font-size: 32px;
  font-weight: 800;
  background: var(--color-gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-top: 4px;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fade-in-right 1s ease 0.5s forwards;
  opacity: 0;
}

.hero-phone-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 400px;
}

.hero-app-card {
  display: block;
  text-decoration: none;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
  transition: var(--transition-bounce);
  cursor: pointer;
}

.hero-app-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hover);
}

.hero-app-card:nth-child(even) {
  margin-top: 24px;
}

.hero-app-card img {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  margin: 0 auto 12px;
  object-fit: cover;
}

.hero-app-card .app-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.3;
}

.hero-app-card .app-rating {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-top: 6px;
  font-size: 11px;
  color: var(--color-text-muted);
}

.hero-app-card .app-rating .stars {
  color: #fbbf24;
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in-right {
  from {
    opacity: 0;
    transform: translateX(40px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* --- Apps Section --- */
.apps-section {
  padding: 100px 0;
  position: relative;
  z-index: 2;
}

.apps-section-header {
  text-align: center;
  margin-bottom: 64px;
}

.apps-section-header .section-subtitle {
  margin: 0 auto;
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.app-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: var(--transition-smooth);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.app-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-gradient-1);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.app-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hover);
  background: var(--color-bg-card-hover);
}

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

.app-card-icon {
  width: 72px;
  height: 72px;
  min-width: 72px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.app-card-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* CSS-based icon fallbacks */
.app-card-icon.icon-canluapro {
  background: linear-gradient(135deg, #065f46, #d4a012);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
  font-weight: 900;
}

.app-card-icon.icon-qrfromimage {
  background: linear-gradient(135deg, #e11d48, #f472b6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
  font-weight: 900;
}

.app-card-icon.icon-cauhoi {
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
  font-weight: 900;
}

.app-card-content {
  flex: 1;
  min-width: 0;
}

.app-card-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.3;
}

.app-card-description {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.app-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.app-platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-text-muted);
}

.app-platform-badge i {
  font-size: 13px;
}

.app-platform-badge .fa-android {
  color: #3ddc84;
}

.app-platform-badge .fa-apple {
  color: #a8b2d1;
}

.app-card-actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.app-store-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition-smooth);
}

.app-store-btn.google-play {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.app-store-btn.google-play:hover {
  background: rgba(255, 255, 255, 0.2);
}

.app-store-btn.app-store {
  background: #000;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.app-store-btn.app-store:hover {
  background: #1a1a1a;
  border-color: rgba(255, 255, 255, 0.4);
}

.app-rating-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: rgba(251, 191, 36, 0.1);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  color: #fbbf24;
}

.app-rating-badge .star-icon {
  font-size: 12px;
}

.app-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: rgba(108, 99, 255, 0.1);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-primary-light);
}

.app-price-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background: rgba(78, 205, 196, 0.1);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  color: #4ecdc4;
}

.app-card-arrow {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: var(--color-text-muted);
  opacity: 0;
  transition: var(--transition-smooth);
}

.app-card:hover .app-card-arrow {
  opacity: 1;
  transform: translateY(-50%) translateX(4px);
  color: var(--color-primary-light);
}

/* --- Featured App Section --- */
.featured-section {
  padding: 80px 0 100px;
  position: relative;
  z-index: 2;
}

.featured-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.featured-visual {
  position: relative;
}

.featured-app-showcase {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.featured-app-showcase::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, transparent, rgba(108, 99, 255, 0.05), transparent, rgba(0, 212, 255, 0.05), transparent);
  animation: rotate-gradient 10s linear infinite;
}

@keyframes rotate-gradient {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.featured-app-showcase img {
  width: 140px;
  height: 140px;
  border-radius: var(--radius-lg);
  margin: 0 auto 20px;
  position: relative;
  z-index: 1;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}

.featured-app-showcase .featured-title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.featured-app-showcase .featured-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  position: relative;
  z-index: 1;
  line-height: 1.7;
}

.featured-content {
  max-width: 480px;
}

.features-list {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.feature-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.feature-icon.icon-green {
  background: rgba(74, 222, 128, 0.1);
  color: #4ade80;
}

.feature-icon.icon-blue {
  background: rgba(59, 130, 246, 0.1);
  color: #3b82f6;
}

.feature-icon.icon-purple {
  background: rgba(168, 85, 247, 0.1);
  color: #a855f7;
}

.feature-icon.icon-amber {
  background: rgba(251, 191, 36, 0.1);
  color: #fbbf24;
}

.feature-text h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.feature-text p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- Categories Section --- */
.categories-section {
  padding: 80px 0;
  position: relative;
  z-index: 2;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.category-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: var(--transition-smooth);
}

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

.category-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.category-icon.cat-agriculture {
  background: linear-gradient(135deg, rgba(74, 222, 128, 0.15), rgba(16, 185, 129, 0.15));
  color: #4ade80;
}

.category-icon.cat-finance {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(99, 102, 241, 0.15));
  color: #3b82f6;
}

.category-icon.cat-utilities {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(236, 72, 153, 0.15));
  color: #a855f7;
}

.category-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.category-count {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* --- About Section --- */
.about-section {
  padding: 80px 0 100px;
  position: relative;
  z-index: 2;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 40px;
}

.about-stat-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition-smooth);
}

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

.about-stat-card .stat-icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.about-stat-card .stat-value {
  font-size: 28px;
  font-weight: 800;
  background: var(--color-gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-stat-card .stat-desc {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.about-visual {
  position: relative;
}

.about-image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.about-image-grid .about-img-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: var(--transition-smooth);
}

.about-image-grid .about-img-card:nth-child(even) {
  margin-top: 32px;
}

.about-image-grid .about-img-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.about-img-card .emoji-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

.about-img-card .card-title {
  font-size: 14px;
  font-weight: 600;
}

.about-img-card .card-desc {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* --- CTA Section --- */
.cta-section {
  padding: 100px 0;
  position: relative;
  z-index: 2;
}

.cta-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(108, 99, 255, 0.15), transparent 70%);
}

.cta-card .section-title,
.cta-card .section-subtitle,
.cta-card .cta-actions {
  position: relative;
  z-index: 1;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 32px;
  flex-wrap: wrap;
}

.store-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  background: #fff;
  color: #0a0e27;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.store-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.store-button-apple {
  background: #000;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.store-button-apple:hover {
  background: #1a1a1a;
  border-color: rgba(255, 255, 255, 0.4);
}

.store-button-apple .store-text small {
  color: #aaa;
}

.store-button .store-icon {
  font-size: 24px;
}

.store-button .store-text {
  text-align: left;
  line-height: 1.2;
}

.store-button .store-text small {
  display: block;
  font-size: 10px;
  font-weight: 400;
  color: #6b7394;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.store-button .store-text span {
  font-size: 16px;
  font-weight: 700;
}

/* --- Footer --- */
.footer {
  padding: 60px 0 30px;
  border-top: 1px solid var(--color-border);
  position: relative;
  z-index: 2;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .navbar-brand {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--color-text-secondary);
  transition: var(--transition-smooth);
}

.footer-social a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-light);
  background: rgba(108, 99, 255, 0.1);
}

.footer-column h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--color-text-primary);
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-column ul li a {
  font-size: 14px;
  color: var(--color-text-muted);
  transition: var(--transition-smooth);
}

.footer-column ul li a:hover {
  color: var(--color-primary-light);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  border-top: 1px solid var(--color-border);
}

.footer-bottom p {
  font-size: 13px;
  color: var(--color-text-muted);
}

.footer-bottom a {
  color: var(--color-primary-light);
}

/* --- Scroll Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* --- Responsive --- */
@media (max-width: 992px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

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

  .hero-stats {
    justify-content: center;
  }

  .hero-phone-grid {
    max-width: 320px;
    margin: 0 auto;
  }

  .featured-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

  .navbar-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 39, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 24px;
    z-index: 998;
  }

  .navbar-nav.active {
    display: flex;
  }

  .navbar-nav a {
    font-size: 20px;
  }

  .menu-toggle {
    display: flex;
    z-index: 999;
  }
}

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

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

  .hero h1 {
    font-size: 36px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
    align-items: center;
  }

  .cta-card {
    padding: 40px 24px;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
    justify-content: center;
  }

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

/* --- Preloader --- */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.preloader-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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