:root {
  --primary: #0ea5e9;
  --primary-dark: #0284c7;
  --secondary: #9333ea;
  --accent: #22d3ee;
  --bg-dark: #0f172a;
  --bg-darker: #020617;
  --text-light: #f8fafc;
  --text-muted: #94a3b8;
  --surface: rgba(15, 23, 42, 0.8);
  --surface-border: rgba(255, 255, 255, 0.1);
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-darker);
  background-image: 
    radial-gradient(at 0% 0%, rgba(14, 165, 233, 0.15) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(147, 51, 234, 0.15) 0px, transparent 50%);
  color: var(--text-light);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.app-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Glassmorphism Navbar */
.navbar-neo {
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar-neo .brand {
  font-size: 1.25rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

.page {
  flex: 1 1 auto;
}

/* Hero Section */
.hero {
  padding: 60px 0;
  position: relative;
}

.hero h1 {
  font-weight: 900;
  font-size: clamp(2.5rem, 8vw, 4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  background: linear-gradient(to bottom right, #fff 30%, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p.lead {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 600px;
}

/* Advanced Cards */
.surface {
  background: var(--surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.surface:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-4px);
}

.card-neo {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.card-neo .card-header {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border: none;
  padding: 20px 24px;
  font-weight: 700;
  font-size: 1.1rem;
}

/* Buttons */
.btn-neo {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px 28px;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

.btn-neo:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 25px rgba(14, 165, 233, 0.5);
  color: #fff;
}

.btn-outline-neo {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  font-weight: 700;
  transition: var(--transition);
}

.btn-outline-neo:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--primary);
  color: var(--primary);
}

/* Forms */
.form-label {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.form-control, .form-select {
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  color: #fff;
  transition: var(--transition);
}

.form-control:focus, .form-select:focus {
  background: rgba(15, 23, 42, 0.8);
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.1);
  color: #fff;
}

.form-control::placeholder {
  color: #475569;
}

/* Info Banner */
.info-banner {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 2rem;
}

.info-banner strong {
  color: var(--primary);
}

/* Steps / Features */
.feature-card {
  padding: 24px;
  height: 100%;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: var(--transition);
}

.feature-card:hover {
  background: rgba(255, 255, 255, 0.08);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.5rem;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
  .hero {
    padding: 40px 0;
    text-align: center;
  }
  
  .hero p.lead {
    margin-left: auto;
    margin-right: auto;
  }
  
  .btn-neo, .btn-outline-neo {
    width: 100%;
    margin-bottom: 10px;
  }
  
  .surface {
    margin-top: 2rem;
  }
}

/* Custom Alert */
.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  color: #fbbf24;
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
}

footer {
  border-top: 1px solid var(--glass-border);
  background: rgba(2, 6, 23, 0.5);
}

.italic { font-style: italic; }
.x-small { font-size: 0.75rem; }
.tracking-wider { letter-spacing: 0.05em; }

/* XPro Logo Styling */
.xpro-logo {
  height: 44px; /* Slightly larger for better branding */
  width: auto;
  display: block;
}

.footer-neo {
  color: var(--text-muted);
  font-weight: 500;
}