* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: #f8fafc;
    color: #1e293b;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 260px;
    background: #1e293b;
    color: white;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 30px 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 14px 25px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: white;
}

.nav-link.active {
    background: rgba(102, 126, 234, 0.15);
    color: white;
    border-left-color: #667eea;
}

.nav-link i {
    margin-right: 12px;
    width: 20px;
}

.sidebar-footer {
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Main Content */
.main-content {
    margin-left: 260px;
    min-height: 100vh;
}

.top-bar {
    background: white;
    padding: 25px 40px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar h1 {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: 'Poppins', sans-serif;
}

.user-info {
    color: #64748b;
}

.user-info strong {
    color: #1e293b;
}

.content-area {
    padding: 40px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.stat-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-info h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-info p {
    color: #64748b;
    margin: 0;
    font-size: 0.9rem;
}

/* Card Custom */
.card-custom {
    background: white;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.04);
    overflow: hidden;
}

.card-header-custom {
    padding: 25px 30px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header-custom h2 {
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0;
}

/* Table */
.table-responsive {
    overflow-x: auto;
}

.table-custom {
    width: 100%;
    border-collapse: collapse;
}

.table-custom thead {
    background: #f8fafc;
}

.table-custom th {
    padding: 18px 30px;
    text-align: left;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    color: #64748b;
    letter-spacing: 0.5px;
}

.table-custom td {
    padding: 20px 30px;
    border-top: 1px solid #e2e8f0;
}

.table-custom tbody tr {
    transition: all 0.3s;
}

.table-custom tbody tr:hover {
    background: #f8fafc;
}

/* Buttons */
.btn-custom {
    padding: 10px 20px;
    border-radius: 10px;
    border: none;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.btn-action {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    margin: 0 4px;
    transition: all 0.3s;
}

.btn-edit {
    background: #e0e7ff;
    color: #667eea;
}

.btn-edit:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

.btn-delete {
    background: #fee2e2;
    color: #ef4444;
}

.btn-delete:hover {
    background: #ef4444;
    color: white;
    transform: translateY(-2px);
}

.badge-custom {
    padding: 6px 12px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    color: #667eea;
    font-weight: 600;
    font-size: 0.85rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 25px;
}

.form-label {
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
    display: block;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 0.95rem;
    transition: all 0.3s;
    font-family: 'Inter', sans-serif;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* Alerts */
.alert {
    border-radius: 12px;
    border: none;
    padding: 16px 20px;
    margin-bottom: 25px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 70px;
    }
    
    .sidebar-header h3,
    .nav-link span,
    .sidebar-footer {
        display: none;
    }
    
    .main-content {
        margin-left: 70px;
    }
    
    .nav-link {
        justify-content: center;
        padding: 14px 0;
    }
    
    .nav-link i {
        margin: 0;
    }
    
    .content-area {
        padding: 20px;
    }
    
    .top-bar {
        padding: 20px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}