/* Clean, Premium SaaS Style CSS for AN Ads Maker */
:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Color Palette */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-accent: #f1f5f9;
  
  --text-primary: #0f172a;    /* Dark Navy */
  --text-secondary: #475569;  /* Muted Slate */
  --text-light: #94a3b8;      /* Light gray-slate */
  
  --brand-color: #000000;     /* Sleek black/navy */
  --brand-blue: #00f2fe;      /* TikTok Cyan-ish glow accent */
  --brand-pink: #fe0979;      /* TikTok Red-ish glow accent */
  --accent-color: #2563eb;    /* Premium Professional Blue */
  --accent-hover: #1d4ed8;
  
  --border-color: #e2e8f0;
  --card-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  
  --max-width-content: 800px;
  --max-width-wide: 1100px;
}

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

html, body {
  height: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  background-image: radial-gradient(#e2e8f0 1.25px, transparent 1.25px);
  background-size: 24px 24px;
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease;
}

a:hover {
  color: var(--accent-hover);
}

/* Layout Elements */
.container {
  width: 100%;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 2rem;
}

.container-narrow {
  width: 100%;
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 0;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 10;
}

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

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.logo-icon {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-pink), var(--brand-blue));
  background-size: 200% 200%;
  animation: logo-pulse 4s ease infinite;
}

@keyframes logo-pulse {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

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

/* Main Content Wrapper */
.main-content {
  flex: 1;
  padding: 4rem 0;
}

/* Hero Section */
.hero {
  text-align: center;
  margin-bottom: 4rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.35rem 1rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--text-primary) 30%, #1e3a8a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 1.5rem auto;
  font-weight: 500;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

/* Sections */
.section {
  margin-bottom: 4rem;
}

.section-title {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
  padding-bottom: 0.5rem;
}

.section-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-pink), var(--brand-blue));
  border-radius: 2px;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.feature-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.25rem 2rem;
  box-shadow: var(--card-shadow);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
              border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
              box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: #94a3b8;
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.05), 0 8px 10px -6px rgb(0 0 0 / 0.05);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--bg-secondary);
  border-radius: 8px;
  margin-bottom: 1.25rem;
  color: var(--accent-color);
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

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

/* Callout Box (for Access Section) */
.callout-box {
  background-color: var(--bg-secondary);
  border-left: 4px solid var(--text-primary);
  padding: 2rem;
  border-radius: 0 12px 12px 0;
  border-top: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  margin-top: 1rem;
}

.callout-box p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* Legal Page Content Styling */
.legal-content {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 3rem;
  box-shadow: var(--card-shadow);
}

.legal-header {
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.legal-title {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.legal-meta {
  font-size: 0.9rem;
  color: var(--text-light);
}

.legal-body p {
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* Callback Page Styling */
.callback-card {
  text-align: center;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 4rem 2rem;
  box-shadow: var(--card-shadow);
  max-width: 600px;
  margin: 2rem auto;
}

.status-icon-wrapper {
  margin-bottom: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 50%;
  color: #16a34a;
}

.callback-title {
  font-size: 1.85rem;
  margin-bottom: 1rem;
}

.callback-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.callback-details {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  text-align: left;
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--text-secondary);
  overflow-x: auto;
  max-height: 250px;
}

.callback-details h4 {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  padding: 2.5rem 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: auto;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
}

.footer-link {
  color: var(--text-secondary);
  font-weight: 500;
}

.footer-link:hover {
  color: var(--accent-color);
}

.footer-copy {
  color: var(--text-light);
  font-size: 0.85rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.25rem;
  }
  
  .hero {
    margin-bottom: 3rem;
  }
  
  .main-content {
    padding: 2.5rem 0;
  }
  
  .legal-content {
    padding: 2rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
}