/* Premium App Landing Page Style */
:root {
  --bg-color: #050508;
  --bg-gradient: radial-gradient(circle at top right, #1a1a2e, #050508 60%);
  --card-bg: rgba(255, 255, 255, 0.03);
  --card-border: rgba(255, 255, 255, 0.08);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-glow: #38bdf8;
  --accent-gold: #fbbf24;
  --btn-bg: linear-gradient(135deg, #38bdf8, #818cf8);
  --btn-hover: linear-gradient(135deg, #7dd3fc, #a5b4fc);
  
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --max-width: 860px;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  margin: 0;
  background-color: var(--bg-color);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  background: rgba(5, 5, 8, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.brand-wrap {
  display: flex;
  flex-direction: column;
}

.brand {
  font-weight: 700;
  margin: 0;
  font-size: 22px;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #ffffff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-link {
  font-weight: 700;
  font-size: 20px;
  color: var(--text-primary);
  text-decoration: none;
  background: linear-gradient(to right, #ffffff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: opacity 0.2s ease;
}

.brand-link:hover {
  opacity: 0.8;
}

.tag {
  margin: 4px 0 0;
  color: var(--accent-glow);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Navigation */
.nav {
  display: flex;
  gap: 24px;
}

.nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
  transition: all 0.3s ease;
  position: relative;
}

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

.nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background: var(--btn-bg);
  transition: width 0.3s ease;
  border-radius: 2px;
}

.nav a:hover::after {
  width: 100%;
}

/* Main Content & Cards */
main.container {
  padding-top: 40px;
  padding-bottom: 60px;
}

.card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-bottom: 32px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255,255,255,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Typography inside cards */
h1 {
  font-size: 36px;
  font-weight: 800;
  margin: 0 0 16px 0;
  letter-spacing: -1px;
  background: linear-gradient(135deg, #ffffff, #a5b4fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 32px 0 16px 0;
  color: #e2e8f0;
}

h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 12px 0;
  color: #cbd5e1;
}

p {
  margin: 0 0 16px 0;
  font-size: 16px;
  color: var(--text-secondary);
}

ul {
  color: var(--text-secondary);
  padding-left: 20px;
  margin-bottom: 24px;
}

li {
  margin-bottom: 8px;
}

strong {
  color: #e2e8f0;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 60px 40px;
}

.hero-title {
  font-size: 42px;
  font-weight: 800;
  margin: 0 0 16px;
  background: linear-gradient(to right, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -1px;
}

.hero-lead {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
}

/* Buttons */
.actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn.primary {
  background: var(--btn-bg);
  color: #fff;
  box-shadow: 0 8px 20px rgba(56, 189, 248, 0.25);
}

.btn.primary:hover {
  background: var(--btn-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(56, 189, 248, 0.4);
}

.btn.outline {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--card-border);
}

.btn.outline:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Links */
a {
  color: var(--accent-glow);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #7dd3fc;
  text-decoration: underline;
}

.gold-link {
  color: var(--accent-gold);
}
.gold-link:hover {
  color: #fcd34d;
}

.muted {
  color: #64748b;
  font-size: 14px;
}

/* Footer */
.site-footer {
  padding: 32px 0;
  text-align: center;
  border-top: 1px solid var(--card-border);
  background: rgba(5, 5, 8, 0.4);
}

.site-footer p {
  margin: 0;
  font-size: 14px;
  color: #475569;
}

/* Responsive */
@media (max-width: 768px) {
  .site-header .container {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .nav {
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .card {
    padding: 32px 24px;
  }
  
  h1 { font-size: 30px; }
  .hero-title { font-size: 32px; }
  
  .actions {
    flex-direction: column;
    width: 100%;
  }
  
  .btn {
    width: 100%;
  }
}