/* Animal Birthday Predictor (ABP) - Executive Landing Page Styles */

:root {
  --bg-dark: #0a192f;
  --bg-card: #112240;
  --bg-surface: #1e293b;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --gold-primary: #d4af37;
  --gold-gradient: linear-gradient(135deg, #f6d365 0%, #d4af37 100%);
  --gold-accent: #f59e0b;
  --emerald-success: #10b981;
  --border-gold: rgba(212, 175, 55, 0.3);
  --glass-bg: rgba(17, 34, 64, 0.8);
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Header & Nav */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 25, 47, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
  padding: 1rem 2rem;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-badge {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 2px solid var(--gold-primary);
  object-fit: cover;
  box-shadow: 0 0 12px rgba(212, 175, 55, 0.3);
}

.brand-title {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.5px;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--gold-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

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

.btn-cta {
  background: var(--gold-gradient);
  color: #0a192f;
  padding: 0.6rem 1.4rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 14px rgba(212, 175, 55, 0.3);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

/* Hero Section */
.hero {
  padding: 5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(212, 175, 55, 0.1);
  border: 1px solid var(--gold-primary);
  padding: 0.4rem 0.9rem;
  border-radius: 20px;
  color: var(--gold-primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 2.75rem;
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 1.2rem;
}

.hero-title span {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(212, 175, 55, 0.4);
  color: var(--text-primary);
  padding: 0.6rem 1.4rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: rgba(212, 175, 55, 0.15);
  border-color: var(--gold-primary);
}

.hero-preview-card {
  background: var(--bg-card);
  border: 2px solid var(--gold-primary);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  position: relative;
}

.cert-stamp {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--emerald-success);
  color: var(--emerald-success);
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
}

/* Feature Grid */
.features-section {
  padding: 4rem 2rem;
  background: rgba(17, 34, 64, 0.4);
}

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

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: 12px;
  padding: 2rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold-primary);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(212, 175, 55, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--gold-primary);
  margin-bottom: 1.25rem;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.feature-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Certificate Showcase Section */
.cert-showcase {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.cert-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.5rem;
}

.cert-item {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.cert-item-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gold-primary);
  margin-bottom: 0.5rem;
}

.cert-item-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  flex-grow: 1;
}

.cert-item-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--emerald-success);
  background: rgba(16, 185, 129, 0.1);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
}

/* Footer */
footer {
  background: #050c1a;
  border-top: 1px solid rgba(212, 175, 55, 0.2);
  padding: 3rem 2rem 2rem;
  margin-top: 4rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.8rem;
  max-width: 320px;
}

.footer-col h4 {
  color: var(--gold-primary);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

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

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Mobile Responsiveness */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .cert-grid {
    grid-template-columns: 1fr;
  }
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .footer-container {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 2rem;
  }
  .nav-links {
    display: none;
  }
}