:root {
    --sidebar-width: 250px;
    --primary-color: #0da1ab;
    --dark-bg: #151b29;
    --light-bg: #f4f6f9;
    --border-color: #e0e0e0;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background-color: var(--light-bg);
    color: #333;
}

.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--dark-bg);
    color: white;
    position: fixed;
    height: 100%;
}

.sidebar-logo {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    font-size: 20px;
    font-weight: bold;
}

.sidebar-logo a {
    color: white;
    text-decoration: none;
}

.sidebar-menu {
    padding: 20px 0;
    list-style: none;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    color: #a0a5b1;
    text-decoration: none;
    transition: 0.3s;
}

.sidebar-menu li a:hover, .sidebar-menu li.active a {
    background-color: rgba(255,255,255,0.05);
    color: white;
    border-left: 4px solid var(--primary-color);
}

.sidebar-menu li a i {
    width: 30px;
    font-size: 18px;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 30px;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    padding: 15px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    margin-bottom: 30px;
}

.header-top h1 {
    font-size: 24px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-info a {
    color: #e74c3c;
    text-decoration: none;
    font-weight: 500;
}

/* Cards & Tables */
.card {
    background: white;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    margin-bottom: 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 14px;
}

.btn {
    padding: 10px 20px;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
}

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

.btn-danger {
    background-color: #e74c3c;
    color: white;
}

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

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

.table th {
    background-color: #f8f9fa;
    font-weight: 600;
}

.badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 12px;
}

.badge-success { background: #e8f8f5; color: #2ecc71; }
.badge-danger { background: #fdedec; color: #e74c3c; }

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: var(--dark-bg);
}

.login-card {
    background: white;
    padding: 40px;
    border-radius: 10px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.login-card h2 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--dark-bg);
}

.login-card .btn {
    width: 100%;
    margin-top: 10px;
}