:root {
  --bg: #0a0a0f;
  --bg-light: #12121a;
  --card: #1a1a24;
  --border: rgba(255,255,255,0.08);
  --text: #e8e8ed;
  --text-muted: #8888a0;
  --accent: #007AFF;
  --accent-hover: #0056b3;
  --iphone: #FF375F;
  --ipad: #5E5CE6;
  --success: #30D158;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10,10,15,0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
}

.logo-icon {
  font-size: 1.5rem;
}

.logo .accent {
  color: var(--accent);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text);
}

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

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: 0.2s;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.05);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.1rem;
}

.btn-nav {
  padding: 8px 16px;
  font-size: 0.9rem;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* Hero */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-light) 100%);
}

.hero-badge {
  display: inline-block;
  background: rgba(0,122,255,0.1);
  color: var(--accent);
  padding: 8px 16px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero .highlight {
  background: linear-gradient(135deg, var(--accent), var(--ipad));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 48px;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Section headers */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-block;
  background: rgba(0,122,255,0.1);
  color: var(--accent);
  padding: 6px 14px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* Guides */
.guides {
  padding: 80px 0;
}

.guides-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.guide-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  text-decoration: none;
  color: var(--text);
  transition: all 0.2s;
}

.guide-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 20px 40px rgba(0,122,255,0.1);
}

.guide-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.guide-device {
  display: inline-block;
  background: rgba(0,122,255,0.1);
  color: var(--accent);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.guide-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.guide-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.guide-meta {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Tools promo */
.tools-promo {
  padding: 60px 0;
  background: linear-gradient(135deg, rgba(0,122,255,0.1), rgba(94,92,230,0.1));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.tools-content h2 {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.tools-content p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* Pro help */
.pro-help {
  padding: 80px 0;
  background: var(--bg-light);
}

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

.pro-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.pro-content > p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 24px;
}

.pro-features {
  list-style: none;
  margin-bottom: 32px;
}

.pro-features li {
  padding: 8px 0;
  font-size: 1.05rem;
}

.pro-cta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}

.pro-partner {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Contact form */
.contact-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
}

.contact-form h3 {
  font-size: 1.5rem;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

/* Footer */
.footer {
  padding: 48px 0 24px;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.footer-brand p {
  width: 100%;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 8px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.affiliate-disclosure {
  margin-top: 8px;
  font-size: 0.8rem;
  opacity: 0.7;
}

/* Mobile */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
  }

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

  .hero {
    padding: 120px 0 60px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-stats {
    gap: 32px;
  }

  .stat-number {
    font-size: 1.5rem;
  }

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

  .footer-content {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
}