:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #0ea5e9;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1e293b;
    --darker: #0f172a;
    --light: #f8fafc;
    --gray: #64748b;
    --border: #334155;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--darker);
    color: var(--light);
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 260px;
    height: 100vh;
    background: var(--dark);
    border-right: 1px solid var(--border);
    padding: 20px;
    z-index: 1000;
}

.sidebar-logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-nav {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: 5px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    color: var(--gray);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: var(--primary);
    color: white;
}

.sidebar-nav a svg {
    width: 20px;
    height: 20px;
}

/* Main Content */
.main-content {
    margin-left: 260px;
    padding: 30px;
    min-height: 100vh;
}

/* Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-title {
    font-size: 1.8rem;
    font-weight: 600;
}

/* Cards */
.card {
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 1.2rem;
    font-weight: 600;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon.primary { background: rgba(99, 102, 241, 0.2); color: var(--primary); }
.stat-icon.success { background: rgba(34, 197, 94, 0.2); color: var(--success); }
.stat-icon.warning { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.stat-icon.danger { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

.stat-icon svg {
    width: 30px;
    height: 30px;
}

.stat-info h3 {
    font-size: 2rem;
    font-weight: 700;
}

.stat-info p {
    color: var(--gray);
    font-size: 0.9rem;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

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

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    color: var(--gray);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    background: var(--darker);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--light);
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

select.form-control {
    cursor: pointer;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-success { background: rgba(34, 197, 94, 0.2); color: var(--success); }
.badge-danger { background: rgba(239, 68, 68, 0.2); color: var(--danger); }
.badge-warning { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.badge-primary { background: rgba(99, 102, 241, 0.2); color: var(--primary); }

/* Login Page */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.login-box {
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
}

.login-logo {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo h1 {
    color: var(--primary);
    font-size: 1.8rem;
}

.login-logo p {
    color: var(--gray);
    margin-top: 5px;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gray);
    border-radius: 26px;
    transition: 0.3s;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
}

input:checked + .toggle-slider {
    background: var(--success);
}

input:checked + .toggle-slider:before {
    transform: translateX(24px);
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    color: var(--danger);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
}

.tab {
    padding: 10px 20px;
    background: transparent;
    border: none;
    color: var(--gray);
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s;
}

.tab.active,
.tab:hover {
    background: var(--primary);
    color: white;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 30px;
    width: 100%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-close {
    background: none;
    border: none;
    color: var(--gray);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Config Editor */
.config-section {
    margin-bottom: 30px;
}

.config-section-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.config-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.config-row:last-child {
    border-bottom: none;
}

.config-label {
    font-weight: 500;
}

.config-description {
    font-size: 0.85rem;
    color: var(--gray);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .main-content {
        margin-left: 0;
    }
}