:root {
    --primary: #B18FCF;
    --primary-light: #D8D8F6;
    --secondary: #978897;
    --dark: #2C2C34;
    --dark-light: #494850;
    --text-main: #2C2C34;
    --text-light: #F0F0F0;
    --bg-body: #F4F4F9;
    --bg-card: #FFFFFF;
    --border: #ddd;
    --sidebar-width: 250px;
    --header-height: 70px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --text-main: #E0E0E0;
    --bg-body: #1E1E24;
    --bg-card: #2C2C34;
    --border: #494850;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    transition: var(--transition);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Auth Pages */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
}

.auth-box {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.auth-logo {
    max-width: 150px;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--secondary);
}

.form-control {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-body);
    color: var(--text-main);
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    background: #9d7bbd;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Dashboard Layout */
.dashboard-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--dark);
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: var(--transition);
    z-index: 1000;
}

.sidebar-header {
    padding: 1rem;
    text-align: center;
    border-bottom: 1px solid var(--dark-light);
}

.sidebar-logo {
    max-width: 120px;
}

.nav-links {
    padding: 1rem 0;
}

.nav-links li a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #bdbdbd;
    transition: var(--transition);
}

.nav-links li a:hover, .nav-links li a.active {
    background: var(--dark-light);
    color: white;
    border-left: 4px solid var(--primary);
}

.nav-links li a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: var(--transition);
}

.top-bar {
    height: var(--header-height);
    background: var(--bg-card);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 900;
}

.theme-toggle {
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-main);
}

.page-content {
    padding: 2rem;
}

/* Cards & Widgets */
.card {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    margin-bottom: 1.5rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 5px solid var(--primary);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.stat-card h3 {
    font-size: 2rem;
    margin: 0.5rem 0;
}

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

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

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

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background-color: rgba(177, 143, 207, 0.1); 
    color: var(--primary);
    font-weight: 600;
}

tr:hover {
    background-color: rgba(0,0,0,0.02);
}

/* Utils */
.badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}
.badge-success { background: #d4edda; color: #155724; }
.badge-warning { background: #fff3cd; color: #856404; }
.badge-danger { background: #f8d7da; color: #721c24; }
.badge-info { background: #d1ecf1; color: #0c5460; }

.d-flex { display: flex; align-items: center; }
.gap-1 { gap: 0.5rem; }
.justify-between { justify-content: space-between; }
.mt-1 { margin-top: 0.5rem; }
.mb-1 { margin-bottom: 1rem; }
.text-right { text-align: right; }

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