:root {
  --black: #0A0A0A;
  --surface: #141414;
  --card: #1A1A1A;
  --red: #E53935;
  --red-dark: #B71C1C;
  --white: #F5F5F5;
  --text-secondary: #B0B0B0;
  --text-muted: #707070;
  --metallic: #B8C4D0;
  --border: rgba(255, 255, 255, 0.06);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--black);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100; padding: 16px 0;
}

.nav-content { display: flex; justify-content: space-between; align-items: center; }
.nav-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo { width: 36px; height: 36px; }
.nav-title { font-size: 20px; font-weight: 800; color: var(--metallic); letter-spacing: 0.5px; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-link { color: var(--text-secondary); text-decoration: none; font-size: 14px; font-weight: 600; transition: color 0.2s; }
.nav-link:hover { color: var(--white); }

.btn {
  display: inline-block; padding: 12px 24px; border-radius: 12px;
  font-size: 16px; font-weight: 600; text-decoration: none; text-align: center;
  cursor: pointer; transition: all 0.2s; border: none;
}
.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: var(--red-dark); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--red); border: 2px solid var(--red); }
.btn-outline:hover { background: rgba(229, 57, 53, 0.1); }
.btn-sm { padding: 8px 16px; font-size: 14px; }

.hero { padding: 160px 0 80px; min-height: 100vh; display: flex; align-items: center; }
.hero-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero h1 { font-size: 56px; font-weight: 800; line-height: 1.1; letter-spacing: -1px; margin-bottom: 24px; }
.text-red { color: var(--red); }
.hero-subtitle { font-size: 18px; color: var(--text-secondary); margin-bottom: 36px; max-width: 480px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-image { display: flex; justify-content: center; }
.phone-mockup {
  width: 280px; height: 560px; background: var(--surface);
  border-radius: 40px; border: 3px solid var(--card); padding: 12px;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
}
.phone-screen {
  width: 100%; height: 100%; background: var(--black);
  border-radius: 30px; display: flex; align-items: center; justify-content: center;
}
.hero-logo { width: 120px; height: 120px; opacity: 0.8; }

.features { padding: 100px 0; }
.section-title { font-size: 36px; font-weight: 800; text-align: center; margin-bottom: 60px; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 32px; text-align: center;
  transition: transform 0.2s, border-color 0.2s;
}
.feature-card:hover { transform: translateY(-4px); border-color: rgba(229, 57, 53, 0.3); }
.feature-icon { font-size: 40px; margin-bottom: 16px; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.5; }

.download { padding: 100px 0; background: var(--surface); }
.download-content { text-align: center; }
.download-subtitle { font-size: 18px; color: var(--text-secondary); margin-bottom: 40px; }
.store-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.store-badge { text-decoration: none; color: var(--white); }
.store-badge-inner {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 12px 24px; transition: border-color 0.2s;
}
.store-badge-inner:hover { border-color: var(--red); }
.store-icon { font-size: 28px; }
.store-badge small { font-size: 11px; color: var(--text-muted); display: block; }
.store-badge strong { font-size: 16px; }
.qr-section { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.qr-placeholder {
  width: 160px; height: 160px; background: var(--white);
  border-radius: 12px; display: flex; align-items: center; justify-content: center;
  color: var(--black); font-size: 24px; font-weight: 800;
}
.qr-text { font-size: 14px; color: var(--text-muted); }

.operator { padding: 100px 0; }
.operator-content { text-align: center; }
.operator-subtitle { font-size: 18px; color: var(--text-secondary); margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto; }
.operator-features { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-bottom: 40px; }
.operator-feature {
  display: flex; align-items: center; gap: 8px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 12px 20px; font-size: 15px;
}
.operator-check { color: var(--red); font-weight: bold; }
.operator-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

.footer { padding: 48px 0; border-top: 1px solid var(--border); }
.footer-content { display: flex; flex-direction: column; align-items: center; gap: 20px; }
.footer-brand { display: flex; align-items: center; gap: 8px; }
.footer-logo { width: 28px; height: 28px; }
.footer-title { font-size: 16px; font-weight: 700; color: var(--metallic); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--text-muted); text-decoration: none; font-size: 14px; transition: color 0.2s; }
.footer-links a:hover { color: var(--white); }
.footer-copy { font-size: 13px; color: var(--text-muted); }

@media (max-width: 768px) {
  .hero { padding: 120px 0 60px; }
  .hero-content { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero h1 { font-size: 36px; }
  .hero-subtitle { margin: 0 auto 28px; }
  .hero-buttons { justify-content: center; }
  .hero-image { order: -1; }
  .phone-mockup { width: 200px; height: 400px; }
  .hero-logo { width: 80px; height: 80px; }
  .features-grid { grid-template-columns: 1fr; gap: 16px; }
  .section-title { font-size: 28px; }
  .nav-links .nav-link { display: none; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 28px; }
  .btn { width: 100%; }
  .hero-buttons, .store-buttons, .operator-buttons { flex-direction: column; align-items: center; }
}