:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --bg-dark: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-main: #f8fafc;
    --text-muted: #717982db;
    --glass-border: rgba(255, 255, 255, 0.1);
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-family);
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
}

.navbar {
    background: rgba(15, 23, 42, 0.8) !important;
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(to right, #818cf8, #c084fc);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 1.5rem;
}

.nav-link {
    color: var(--text-muted) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    margin: 0 0.5rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-main) !important;
    transform: translateY(-1px);
}

.glass-card {
    background: var(--card-bg);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 1.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
}

.form-control {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
}

.form-control:focus {
    background: rgba(15, 23, 42, 0.7);
    border-color: var(--primary-color);
    color: var(--text-main);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, #6366f1, #a855f7);
    border: none;
    border-radius: 0.75rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: scale(1.02);
    filter: brightness(1.1);
    box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.4);
}

.list-group-item {
    background: rgba(15, 23, 42, 0.3);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    margin-bottom: 0.5rem;
    border-radius: 0.75rem !important;
}

.alert-success {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.2);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.alert-info {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Feature tags */
.badge-premium {
    background: linear-gradient(to right, #f59e0b, #ef4444);
    font-weight: bold;
    padding: 0.4rem 0.8rem;
    border-radius: 2rem;
}

footer {
    margin-top: auto;
    padding: 2rem 0;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    color: var(--text-muted);
}

.text-muted {
    --bs-text-opacity: 1;
    color: #717982db !important;
}