:root {
  --primary-color: #ff2d55; /* Apple Music style pink/red */
  --secondary-color: #1c1c1e;
  --text-color: #ffffff;
  --text-secondary: #8e8e93;
  --bg-color: #000000;
  --card-bg: #1c1c1e;
  --nav-height: 60px;
  --transition-speed: 0.3s;
  --container-padding: 20px;
  --max-width: 1200px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

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

/* Utilities */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 25px;
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform var(--transition-speed), background-color var(--transition-speed);
}

.btn:hover {
  background-color: #e02548;
  transform: translateY(-2px);
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo img {
  height: 30px;
  width: auto;
  border-radius: 6px;
}

nav ul {
  display: flex;
  gap: 20px;
}

nav a {
  font-size: 0.9rem;
  font-weight: 500;
}

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

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(circle at center, #2a2a2a 0%, #000000 100%);
  padding-top: var(--nav-height);
}

.hero-content {
  max-width: 800px;
  animation: fadeInUp 1s ease-out;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero h1 span {
  color: var(--primary-color);
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

/* Features Section */
.features {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.feature-card {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 15px;
  text-align: center;
  transition: transform var(--transition-speed);
}

.feature-card:hover {
  transform: translateY(-10px);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
  color: var(--primary-color);
}

.feature-card h3 {
  margin-bottom: 15px;
  font-size: 1.2rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Reviews Section */
.reviews {
  padding: 80px 0;
  background-color: var(--card-bg);
}

.review-card {
  background-color: var(--bg-color);
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 20px;
}

.stars {
  color: #ffd700;
  margin-bottom: 10px;
}

/* Download Section */
.download {
  padding: 100px 0;
  text-align: center;
  background: linear-gradient(to bottom, #000000, #1a0b0e);
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.app-store-btn {
  display: inline-flex;
  align-items: center;
  background-color: #000000;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 12px;
  padding: 8px 16px;
  color: white;
  text-decoration: none;
  transition: background-color 0.3s, transform 0.3s;
  min-width: 160px;
}

.app-store-btn:hover {
  background-color: #1a1a1a;
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.8);
}

.app-store-btn svg {
  width: 24px;
  height: 24px;
  margin-right: 10px;
  fill: white;
}

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

.app-store-btn .small-text {
  font-size: 0.6rem;
  font-weight: 400;
}

.app-store-btn .large-text {
  font-size: 1.1rem;
  font-weight: 600;
}

/* Footer */
footer {
  padding: 40px 0;
  border-top: 1px solid #333;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

footer .links {
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
  gap: 20px;
}

/* Policy Page Specifics */
.policy-page {
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: 60px;
}

.policy-container {
  display: flex;
  gap: 40px;
}

.policy-nav {
  width: 250px;
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--nav-height) + 20px);
  height: fit-content;
  background: var(--card-bg);
  padding: 20px;
  border-radius: 10px;
}

.policy-nav h3 {
  margin-bottom: 15px;
  color: var(--primary-color);
}

.policy-nav ul li {
  margin-bottom: 10px;
}

.policy-nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.policy-nav a.active {
  color: var(--text-color);
  font-weight: 600;
}

.policy-content {
  flex-grow: 1;
  background: var(--card-bg);
  padding: 40px;
  border-radius: 10px;
}

.policy-content h1 {
  margin-bottom: 10px;
}

.policy-content .date {
  color: var(--text-secondary);
  margin-bottom: 30px;
  display: block;
}

.policy-section {
  margin-bottom: 30px;
}

.policy-section h2 {
  font-size: 1.3rem;
  margin-bottom: 15px;
  color: var(--text-color);
}

.policy-section p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  color: var(--primary-color);
  font-weight: 500;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive Design */

/* Tablet (768px - 1199px) */
@media (max-width: 1199px) {
  .hero h1 {
    font-size: 3rem;
  }
}

/* Mobile (<= 767px) */
@media (max-width: 767px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .policy-container {
    flex-direction: column;
  }
  
  .policy-nav {
    width: 100%;
    position: relative;
    top: 0;
    margin-bottom: 20px;
  }
  
  .policy-content {
    padding: 20px;
  }
  
  nav {
    display: none; /* Simplification for mobile menu, or use a hamburger menu */
  }
  
  /* Simple mobile menu */
  .mobile-menu-btn {
    display: block;
  }
}