:root {
    --dark-1: #0f172a;
    --dark-2: #1e293b;
    --dark-3: #334155;
    --blue-1: #3b82f6;
    --blue-2: #2563eb;
    --text-light: #f8fafc;
    --text-dim: #94a3b8;
}

.client-panel {
    display: flex;
    min-height: 100vh;
    background: var(--dark-1);
    color: var(--text-light);
    font-family: 'Segoe UI', system-ui, sans-serif;
}

/* Sidebar */
.client-sidebar {
    width: 280px;
    background: var(--dark-2);
    border-right: 1px solid var(--dark-3);
    padding: 2rem 0;
}

.client-sidebar-header {
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid var(--dark-3);
    margin-bottom: 1rem;
}

.client-sidebar-header h3 {
    color: var(--blue-1);
    margin: 0;
    font-size: 1.25rem;
}

.client-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.client-menu li a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--text-dim);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.client-menu li a:hover,
.client-menu li a.active {
    background: rgba(59, 130, 246, 0.08);
    border-left-color: var(--blue-1);
    color: var(--blue-1);
}

.client-menu li a i {
    width: 20px;
    text-align: center;
}

/* Main Content */
.client-content {
    flex: 1;
    padding: 2rem;
}

.client-card {
    background: var(--dark-2);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--dark-3);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.client-card h3 {
    margin-top: 0;
    color: var(--blue-1);
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--dark-3);
    font-size: 1.125rem;
}

/* Dashboard Grid */
.server-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.server-info-card {
    background: var(--dark-3);
    padding: 1.25rem;
    border-radius: 0.5rem;
}

.server-info-card h4 {
    margin: 0 0 0.75rem 0;
    color: var(--text-light);
    font-size: 1rem;
}

.server-info-card p {
    margin: 0.25rem 0;
    color: var(--text-dim);
}

.payment-btn {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background: var(--blue-1);
    color: white;
    border-radius: 0.25rem;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.3s;
}

.payment-btn:hover {
    background: var(--blue-2);
}