:root {
    --bg-main: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --border-glass: rgba(255, 255, 255, 0.1);
    --accent-blue: #38bdf8;
    --accent-purple: #818cf8;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    margin: 0;
    min-height: 100vh;
}

.glass {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: 1rem;
}

.glass-hover:hover {
    border-color: var(--accent-blue);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.1);
}

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

.btn-premium {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-premium:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
}

.sidebar {
    width: 260px;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    padding: 2rem;
    border-right: 1px solid var(--border-glass);
}

.main-content {
    margin-left: 260px;
    padding: 2rem;
}

.card {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
    transition: all 0.2s;
}

.nav-link:hover, .nav-link.active {
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent-blue);
}

.stat-card {
    padding: 2rem;
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 0.5rem 0;
}

.grid-cols-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

input, textarea, select {
    background: rgba(15, 23, 42, 0.5) !important;
    border: 1px solid var(--border-glass) !important;
    color: white !important;
    border-radius: 0.5rem !important;
    padding: 0.75rem !important;
}

input:focus {
    border-color: var(--accent-blue) !important;
    outline: none !important;
}