:root {
    --primary: #4facfe;
    --secondary: #00f2fe;
    --bg-dark: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --sidebar-bg: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #38bdf8;
    --border: rgba(255, 255, 255, 0.1);
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Outfit', sans-serif;
    margin: 0;
    overflow-x: hidden;
}

/* Sidebar Styling */
#sidebar {
    width: 260px;
    height: 100vh;
    background: var(--sidebar-bg);
    position: fixed;
    left: 0;
    top: 0;
    transition: all 0.3s;
    z-index: 1000;
    border-right: 1px solid var(--border);
}

#content {
    margin-left: 260px;
    padding: 30px;
    transition: all 0.3s;
}

.nav-link {
    color: var(--text-muted);
    padding: 12px 25px;
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: all 0.3s;
    border-radius: 10px;
    margin: 5px 15px;
}

.nav-link:hover, .nav-link.active {
    background: linear-gradient(to right, rgba(79, 172, 254, 0.1), rgba(0, 242, 254, 0.05));
    color: var(--primary);
}

.nav-link i {
    margin-right: 12px;
    font-size: 1.1rem;
}

/* Dashboard Cards */
.stat-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 25px;
    height: 100%;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

/* Table Styling */
.custom-table {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.custom-table thead {
    background: rgba(255, 255, 255, 0.05);
}

.custom-table th {
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    padding: 15px;
    border-bottom: 1px solid var(--border);
}

.custom-table td {
    padding: 15px;
    border-bottom: 1px solid var(--border);
    color: var(--text-main);
    vertical-align: middle;
}

/* Buttons */
.btn-premium {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    color: white;
    border: none;
    border-radius: 10px;
    padding: 10px 20px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-premium:hover {
    box-shadow: 0 10px 15px -3px rgba(79, 172, 254, 0.4);
    color: white;
    transform: scale(1.02);
}

/* Forms */
.form-control, .form-select {
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid var(--border) !important;
    color: #fff !important;
    border-radius: 10px !important;
}

.form-control:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 0.25rem rgba(79, 172, 254, 0.1) !important;
}

/* Responsive */
@media (max-width: 992px) {
    #sidebar {
        left: -260px;
    }
    #sidebar.active {
        left: 0;
    }
    #content {
        margin-left: 0;
    }
}