:root {
  --primary-color: #000000;
  --secondary-color: #1a1a1a;
  --accent-color: #007aff;
  /* Apple-like blue */
  --text-primary: #1d1d1f;
  --text-secondary: #86868b;
  --bg-color: #ffffff;
  --section-bg: #f5f5f7;
  --border-radius: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-primary);
  background: var(--bg-color);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1,
h2,
h3 {
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 20px 40px;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.logo {
  height: 32px;
  object-fit: contain;
}

/* Hero Section */
.hero {
  padding: 160px 20px 100px;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 4.5rem;
  line-height: 1.1;
  margin-bottom: 20px;
  background: linear-gradient(180deg, #1d1d1f 0%, #434346 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  font-size: 1.5rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  font-weight: 400;
}

.hero-image-container {
  position: relative;
  margin-top: 60px;
  perspective: 1000px;
}

.hero-image {
  width: 100%;
  max-width: 800px;
  border-radius: 12px;
  transition: var(--transition);
}

.frame-mockup {
  display: inline-block;
  background: #000;
  padding: 40px;
  border-radius: 24px;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  max-width: 900px;
  margin: 0 auto;
}

.logo-hero {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Buttons */
.button {
  display: inline-block;
  padding: 16px 32px;
  background: var(--primary-color);
  color: white;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
}

.button:hover {
  background: #333;
  transform: translateY(-2px);
}

/* Sections */
.section {
  padding: 100px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: 3rem;
  text-align: center;
  margin-bottom: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.feature-card {
  background: var(--section-bg);
  padding: 40px;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-10px);
  background: #eeeef0;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
}

.feature-card p {
  color: var(--text-secondary);
}

/* Footer */
.footer {
  padding: 80px 20px 40px;
  background: var(--section-bg);
  text-align: center;
}

.footer-links {
  margin-top: 20px;
}

.footer a {
  color: var(--text-secondary);
  text-decoration: none;
  margin: 0 15px;
  font-size: 0.9rem;
  transition: var(--transition);
}

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

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .subtitle {
    font-size: 1.2rem;
  }

  .header {
    padding: 15px 20px;
  }
}