:root {
  --primary: #ff3b30;
  --bg: #ffffff;
  --text: #1d1d1f;
  --text-secondary: #86868b;
  --glass: rgba(255, 255, 255, 0.7);
  --border: rgba(0, 0, 0, 0.1);
  --font-main: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.header-container {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 700;
  font-size: 1.35rem;
  display: flex;
  align-items: center;
  gap: 12px;
  letter-spacing: -0.02em;
}

.logo img {
  width: 40px !important;
  height: 40px !important;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.logo-icon {
  width: 24px;
  height: 24px;
  background: var(--primary);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.8rem;
}

nav a {
  text-decoration: none;
  color: var(--text);
  font-size: 0.9rem;
  margin-left: 30px;
  transition: opacity 0.2s;
}

nav a:hover {
  opacity: 0.6;
}

/* Hero Section */
.hero {
  padding: 120px 0;
  text-align: center;
}

h1 {
  font-size: 4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 32px;
}

.hero p {
  font-size: 1.6rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 48px;
  font-weight: 400;
}

.cta-button {
  display: inline-block;
  padding: 18px 40px;
  background: var(--text);
  color: white;
  text-decoration: none;
  border-radius: 40px;
  font-weight: 600;
  font-size: 1.15rem;
  transition: transform 0.2s, background 0.2s;
  margin-bottom: 24px;
}

.cta-button:hover {
  background: #000;
  transform: scale(1.02);
}

.secondary-note {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 16px;
}

.btn {
  display: inline-block;
  padding: 16px 32px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 59, 48, 0.3);
}

.btn-white {
  background: white;
  color: var(--text);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

/* Problem Section */
.problem {
  padding: 100px 0;
  background: #f5f5f7;
}

.comparison {
  display: flex;
  gap: 60px;
  align-items: center;
  justify-content: center;
  margin-top: 60px;
}

.card {
  background: white;
  padding: 40px;
  border-radius: 32px;
  width: 400px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
  text-align: center;
}

.card.native {
  opacity: 0.6;
  filter: grayscale(1);
}

.card h3 {
  margin-bottom: 16px;
  font-size: 1.5rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.badge-red {
  background: #ffebeb;
  color: #ff3b30;
}

.badge-green {
  background: #e8f5e9;
  color: #4caf50;
}

/* Features */
.features {
  padding: 100px 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 60px;
}

.feature-item h4 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

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

/* Status Indicator Section */
.status-info {
  padding: 100px 0;
  background: var(--text);
  color: white;
  text-align: center;
}

/* Footer */
footer {
  padding: 60px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  .comparison {
    flex-direction: column;
  }

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