:root {
    --primary-color: #0d6efd;
    --sidebar-bg: #1e2632;
    --card-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --transition: all 0.3s ease;
}

body {
    background-color: #f8f9fa;
    font-family: 'Inter', sans-serif;
}

/* Login Page Styles */
.login-container {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e2632 0%, #0d6efd 100%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

/* Admin Sidebar Styles */
#sidebar {
    width: 250px;
    height: 100vh;
    position: fixed;
    background: var(--sidebar-bg);
    color: #fff;
    transition: var(--transition);
}

#sidebar .nav-link {
    color: rgba(255, 255, 255, 0.7);
    padding: 0.8rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

#sidebar .nav-link:hover, #sidebar .nav-link.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

#main-content {
    margin-left: 250px;
    padding: 2rem;
}

/* Premium Components */
.card {
    border: none;
    border-radius: 0.75rem;
    box-shadow: var(--card-shadow);
}

.btn-primary {
    border-radius: 0.5rem;
    padding: 0.6rem 1.2rem;
    font-weight: 500;
}

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}