/* assets/style.css */
:root {
    --primary-color: #1a252f;
    --secondary-color: #2c3e50;
    --accent-color: #3498db;
    --accent-hover: #2980b9;
    --danger-color: #e74c3c;
    --danger-hover: #c0392b;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --bg-color: #f7f9fa;
    --card-bg: #ffffff;
    --text-main: #2d3748;
    --text-muted: #718096;
    --border-color: #e2e8f0;
    --topbar-bg: rgba(255, 255, 255, 0.9);
    --sidebar-bg: #1a252f;
    --sidebar-text: rgba(255, 255, 255, 0.6);
    --sidebar-active: #ffffff;
    --table-header-bg: #f8fafc;
    --border-radius: 12px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --badge-success-bg: #dcfce7;
    --badge-success-text: #166534;
    --badge-warning-bg: #fef9c3;
    --badge-warning-text: #854d0e;
    --badge-danger-bg: #fee2e2;
    --badge-danger-text: #991b1b;
}

body.dark-mode {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --topbar-bg: rgba(30, 41, 59, 0.9);
    --sidebar-bg: #0f172a;
    --table-header-bg: #1e293b;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5);
    
    --badge-success-bg: rgba(34, 197, 94, 0.2);
    --badge-success-text: #4ade80;
    --badge-warning-bg: rgba(234, 179, 8, 0.2);
    --badge-warning-text: #facc15;
    --badge-danger-bg: rgba(239, 68, 68, 0.2);
    --badge-danger-text: #f87171;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent-hover);
}

/* AUTH PAGES */
.auth-bg {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.auth-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.auth-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header h2 {
    color: var(--accent-color);
    font-weight: 700;
    font-size: 26px;
    margin-bottom: 5px;
}

.auth-header p {
    color: var(--text-muted);
    font-size: 15px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 15px;
    transition: var(--transition);
    background-color: var(--bg-color);
    color: var(--text-main);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--accent-color);
    color: #fff;
    box-shadow: 0 4px 6px rgba(52, 152, 219, 0.2);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 8px rgba(52, 152, 219, 0.3);
}

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

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

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
    border-radius: 6px;
}

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

.alert {
    padding: 12px 16px;
    border-radius: var(--border-radius);
    font-size: 14px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert.error {
    background-color: var(--badge-danger-bg);
    color: var(--badge-danger-text);
    border: 1px solid var(--border-color);
}

.alert.success {
    background-color: var(--badge-success-bg);
    color: var(--badge-success-text);
    border: 1px solid var(--border-color);
}

.auth-footer {
    margin-top: 25px;
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
}

/* LAYOUT PANEL (Admin / Dashboard) */
.wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background-color: var(--sidebar-bg);
    color: #fff;
    display: flex;
    flex-direction: column;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    z-index: 10;
}

.sidebar-header {
    padding: 25px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 32px;
    color: var(--accent-color);
    margin-bottom: 5px;
}

.sidebar-header h3 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 1px;
}

.sidebar-menu {
    list-style: none;
    padding: 20px 0;
    flex: 1;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 16px 25px;
    color: var(--sidebar-text);
    font-size: 15px;
    font-weight: 500;
    border-left: 4px solid transparent;
}

.sidebar-menu li a i {
    font-size: 18px;
    width: 20px;
    text-align: center;
}

.sidebar-menu li a:hover, .sidebar-menu li a.active {
    background-color: rgba(255,255,255,0.05);
    color: var(--sidebar-active);
    border-left-color: var(--accent-color);
}

.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.topbar {
    background-color: var(--topbar-bg);
    backdrop-filter: blur(10px);
    height: 75px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 5;
    border-bottom: 1px solid var(--border-color);
}

.page-title h1 {
    font-size: 22px;
    color: var(--text-main);
    font-weight: 700;
}

.user-info {
    font-size: 14px;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-greeting strong {
    color: var(--accent-color);
    font-weight: 600;
}

.main-container {
    padding: 40px;
    flex: 1;
}

/* DASHBOARD CARDS */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.stat-card {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.stat-details h3 {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.stat-details .value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1;
}

.charts-grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
}

.chart-card {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.chart-card:hover {
    box-shadow: var(--shadow-lg);
}

.chart-header {
    margin-bottom: 25px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.chart-header h3 {
    font-size: 16px;
    color: var(--text-main);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.chart-header h3 i {
    color: var(--accent-color);
}

/* TABLES & FORMS IN PAGE */
.table-container {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.table-header {
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--table-header-bg);
}

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

th, td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--table-header-bg);
    font-weight: 600;
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    font-size: 14px;
    color: var(--text-main);
    vertical-align: middle;
}

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

.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
}

.badge-success { background-color: var(--badge-success-bg); color: var(--badge-success-text); }
.badge-warning { background-color: var(--badge-warning-bg); color: var(--badge-warning-text); }
.badge-danger { background-color: var(--badge-danger-bg); color: var(--badge-danger-text); }

.form-inline {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    background: var(--card-bg);
    padding: 25px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    align-items: flex-end;
    flex-wrap: wrap;
}

.form-inline .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 220px;
}

/* RESPONSIVE LAYOUT & SIDEBAR DEMO */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-main);
    cursor: pointer;
    margin-right: 15px;
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    display: none;
}
.sidebar-overlay.active {
    display: block;
}

@media (max-width: 992px) {
    .sidebar {
        position: fixed;
        height: 100vh;
        left: -280px;
        transition: left 0.3s ease;
        z-index: 1000;
    }
    .sidebar.active {
        left: 0;
    }
    .menu-toggle {
        display: inline-flex;
    }
    .topbar {
        padding: 0 20px;
    }
    .main-container {
        padding: 20px;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .charts-grid-3 {
        grid-template-columns: 1fr;
    }
}