:root {
    --bg-dark: #0a0a0a;
    --accent-primary: #3b82f6;
    --accent-secondary: #8b5cf6;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --border-color: #27272a;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
}

.navbar {
    background-color: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
}

.hero-section {
    padding: 160px 0 100px;
    background: radial-gradient(circle at top center, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
}

.fw-extrabold {
    font-weight: 800;
    letter-spacing: -0.05em;
}

.text-gradient {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.badge-stealth {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 9999px;
    background-color: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: var(--accent-primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.signup-container {
    max-width: 500px;
}

.form-control-lg {
    border-radius: 12px;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border: none;
    border-radius: 12px;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(59, 130, 246, 0.4);
}

.card {
    border-radius: 24px;
    transition: border-color 0.3s;
}

.card:hover {
    border-color: var(--accent-primary) !important;
}

.text-secondary {
    color: var(--text-secondary) !important;
}

footer {
    border-color: var(--border-color) !important;
}

/* Custom Alert Styles */
.alert {
    border-radius: 12px;
    background-color: rgba(10, 10, 10, 0.5);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.alert-success {
    border-color: #10b981;
    color: #10b981;
}

.alert-danger {
    border-color: #ef4444;
    color: #ef4444;
}