:root {
  --primary: #1d4ed8;
  --primary-hover: #1e40af;
  --secondary: #3b82f6;
  --accent: #f59e0b;
  --text-dark: #1e293b;
  --text-light: #64748b;
  --bg-light: #faf7f2;
  --white: #ffffff;
  --font-main: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
}

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

/* Header */
header {
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo-group {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: 12px;
}

.logo-badge {
  background: var(--primary);
  color: var(--white);
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 24px;
  font-weight: bold;
}

.brand-name {
  display: block;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: 1px;
}

.brand-sub {
  display: block;
  font-size: 12px;
  color: var(--text-light);
}

.nav-menu {
  list-style: none;
  display: flex;
  gap: 30px;
}

.nav-link {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 600;
  transition: color 0.3s;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

.header-cta-btn {
  background: var(--accent);
  color: var(--white);
  padding: 10px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s;
}

.header-cta-btn:hover {
  background: #d97706;
}

/* Hero Section */
.hero-section {
  padding: 60px 0;
  background: linear-gradient(135deg, #fdfbf7 0%, #f3f0ea 100%);
}

.main-card {
  background: var(--white);
  border-radius: 16px;
  padding: 50px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.04);
}

.hero-tag-box {
  display: inline-block;
  background: #e0f2fe;
  color: #0369a1;
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 42px;
  line-height: 1.2;
  margin-bottom: 24px;
  color: var(--text-dark);
}

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

.hero-lead {
  font-size: 18px;
  color: var(--text-light);
  margin-bottom: 40px;
  max-width: 800px;
}

/* Grids */
.top-photos-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}

.top-photo-card img {
  width: 100%;
  border-radius: 12px;
  height: 250px;
  object-fit: cover;
}

.top-photo-caption {
  margin-top: 12px;
  font-weight: 600;
  color: var(--text-dark);
  text-align: center;
}

.content-text {
  font-size: 17px;
  color: #334155;
  line-height: 1.8;
  margin-bottom: 40px;
}

.content-text p {
  margin-bottom: 20px;
}

.effects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.effect-card {
  background: var(--bg-light);
  padding: 24px;
  border-radius: 12px;
  text-align: center;
  border: 1px solid #e2e8f0;
  transition: transform 0.3s;
}

.effect-card:hover {
  transform: translateY(-5px);
}

.effect-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.effect-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--primary);
}

.effect-card p {
  font-size: 14px;
  color: var(--text-light);
}

/* Footer */
footer {
  background: var(--text-dark);
  color: var(--white);
  padding: 30px 0;
  text-align: center;
}

.footer-bottom {
  font-size: 14px;
  opacity: 0.8;
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .top-photos-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 32px;
  }
  .main-card {
    padding: 30px 20px;
  }
}