/* ========================================
   MODERN DASHBOARD - CSS STYLES
   ======================================== */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --sidebar-width: 260px;
    --sidebar-bg: #ffffff;
    --sidebar-border: #e5e7eb;
    --primary-color: #111827;
    --primary-hover: #1f2937;
    --accent-color: #3b82f6;
    --accent-light: #eff6ff;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --bg-main: #f3f4f6;
    --bg-card: #ffffff;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --success-bg: #ecfdf5;
    --danger-color: #ef4444;
    --danger-bg: #fef2f2;
    --warning-color: #f59e0b;
    --warning-bg: #fffbeb;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    font-size: 14px;
}

/* ========================================
   LOGIN PAGES
   ======================================== */

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
}

.login-box {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.login-box .subtitle {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 14px;
}

/* ========================================
   FORM STYLES
   ======================================== */

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 13px;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.2s;
    background: var(--bg-card);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group .optional {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 12px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    gap: 8px;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-main);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

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

.btn-accent:hover {
    background-color: #2563eb;
}

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

.btn-danger:hover {
    background-color: #dc2626;
}

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

.btn-success:hover {
    background-color: #059669;
}

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

.btn-full {
    width: 100%;
}

.btn-icon {
    padding: 8px;
    border-radius: 8px;
}

/* ========================================
   APP LAYOUT
   ======================================== */

.app-layout {
    display: flex;
    min-height: 100vh;
}

/* ========================================
   MODERN SIDEBAR
   ======================================== */

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-brand {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-brand:hover {
    color: var(--text-primary);
}

.brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent-color) 0%, #1d4ed8 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 14px;
}

.sidebar-user {
    padding: 16px 20px;
    border-bottom: 1px solid var(--sidebar-border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    background: var(--bg-main);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 14px;
}

.user-info-text {
    flex: 1;
    min-width: 0;
}

.user-info-text strong {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-info-text span {
    font-size: 12px;
    color: var(--text-muted);
}

/* Sidebar Navigation */
.sidebar-nav {
    padding: 16px 12px;
    flex: 1;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    margin-bottom: 2px;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.15s;
    gap: 12px;
}

.nav-link:hover {
    background-color: var(--bg-main);
    color: var(--text-primary);
}

.nav-link.active {
    background-color: var(--accent-light);
    color: var(--accent-color);
}

.nav-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    opacity: 0.7;
}

.nav-link:hover svg,
.nav-link.active svg {
    opacity: 1;
}

/* Submenu Styles */
.nav-item.has-submenu > .nav-link {
    cursor: pointer;
}

.nav-link .nav-arrow {
    margin-left: auto;
    width: 16px;
    height: 16px;
    transition: transform 0.2s;
}

.nav-item.has-submenu.open > .nav-link .nav-arrow {
    transform: rotate(180deg);
}

.submenu {
    display: none;
    padding-left: 20px;
    margin-top: 4px;
}

.nav-item.has-submenu.open > .submenu {
    display: block;
}

.submenu .nav-link {
    padding: 8px 12px;
    font-size: 13px;
    position: relative;
}

.submenu .nav-link::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    background-color: var(--border-color);
    border-radius: 50%;
}

.submenu .nav-link.active::before {
    background-color: var(--accent-color);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 16px 12px;
    border-top: 1px solid var(--sidebar-border);
}

.logout-btn {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 10px 12px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s;
    gap: 12px;
}

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

.logout-btn svg {
    width: 20px;
    height: 20px;
    opacity: 0.7;
}

.logout-btn:hover svg {
    opacity: 1;
}

/* ========================================
   MAIN CONTENT
   ======================================== */

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Top Header */
.top-header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.page-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.page-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}

.top-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    cursor: pointer;
    background: var(--bg-main);
    border: none;
    border-radius: 10px;
    gap: 5px;
}

.hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s;
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Sidebar Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 999;
    backdrop-filter: blur(2px);
}

.sidebar-overlay.active {
    display: block;
}

/* Content Area */
.content-area {
    padding: 24px;
    flex: 1;
}

/* ========================================
   DASHBOARD COMPONENTS
   ======================================== */

/* Welcome Banner */
.welcome-banner {
    background: linear-gradient(135deg, var(--primary-color) 0%, #374151 100%);
    color: #fff;
    padding: 32px;
    border-radius: 16px;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

.welcome-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}

.welcome-banner h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    position: relative;
}

.welcome-banner p {
    opacity: 0.8;
    font-size: 14px;
    position: relative;
}

.welcome-banner .welcome-date {
    position: absolute;
    top: 32px;
    right: 32px;
    font-size: 13px;
    opacity: 0.7;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    padding: 24px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.2s;
}

.stat-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transform: translateY(-2px);
}

.stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-card-icon.blue {
    background: var(--accent-light);
    color: var(--accent-color);
}

.stat-card-icon.green {
    background: var(--success-bg);
    color: var(--success-color);
}

.stat-card-icon.orange {
    background: var(--warning-bg);
    color: var(--warning-color);
}

.stat-card-icon svg {
    width: 24px;
    height: 24px;
}

.stat-card h3 {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 24px;
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.quick-action-item {
    display: flex;
    align-items: center;
    padding: 16px;
    background: var(--bg-main);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.2s;
    gap: 12px;
}

.quick-action-item:hover {
    background: var(--accent-light);
    color: var(--accent-color);
}

.quick-action-icon {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-action-icon svg {
    width: 20px;
    height: 20px;
}

.quick-action-text {
    font-weight: 500;
    font-size: 14px;
}

/* ========================================
   TABLES
   ======================================== */

.table-responsive {
    overflow-x: auto;
}

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

table th,
table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

table th {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background-color: var(--bg-main);
}

table td {
    color: var(--text-primary);
}

table tr:hover {
    background-color: var(--bg-main);
}

table tr:last-child td {
    border-bottom: none;
}

/* ========================================
   BADGES
   ======================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-active {
    background-color: var(--success-bg);
    color: var(--success-color);
}

.badge-inactive {
    background-color: var(--danger-bg);
    color: var(--danger-color);
}

.badge-admin {
    background-color: #e0e7ff;
    color: #4f46e5;
}

.badge-user {
    background-color: #fae8ff;
    color: #c026d3;
}

/* ========================================
   ALERTS
   ======================================== */

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

.alert-success {
    background-color: var(--success-bg);
    color: var(--success-color);
    border: 1px solid #a7f3d0;
}

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

.alert-warning {
    background-color: var(--warning-bg);
    color: var(--warning-color);
    border: 1px solid #fde68a;
}

/* ========================================
   MODALS
   ======================================== */

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 1100;
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    padding: 32px;
    border-radius: 16px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.modal-icon {
    width: 56px;
    height: 56px;
    background: var(--danger-bg);
    color: var(--danger-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.modal-icon svg {
    width: 28px;
    height: 28px;
}

.modal h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.modal p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 14px;
}

.modal-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* ========================================
   USER DETAILS
   ======================================== */

.user-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.detail-item {
    padding: 16px;
    background-color: var(--bg-main);
    border-radius: 12px;
}

.detail-item label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.detail-item span {
    font-size: 14px;
    color: var(--text-primary);
    word-break: break-word;
}

.detail-item a {
    color: var(--accent-color);
    text-decoration: none;
}

.detail-item a:hover {
    text-decoration: underline;
}

/* ========================================
   EMPTY STATE
   ======================================== */

.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-secondary);
}

.empty-state-icon {
    width: 64px;
    height: 64px;
    background: var(--bg-main);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.empty-state-icon svg {
    width: 32px;
    height: 32px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 14px;
    max-width: 300px;
    margin: 0 auto;
}

/* ========================================
   ADMIN NAVBAR (Top Navigation)
   ======================================== */

.navbar {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.navbar-nav {
    display: flex;
    gap: 8px;
    align-items: center;
}

.navbar-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.15s;
}

.navbar-nav a:hover {
    background-color: var(--bg-main);
    color: var(--text-primary);
}

.navbar-nav a.active {
    background-color: var(--accent-light);
    color: var(--accent-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-info span {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* Page Header */
.page-header {
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Form Card */
.form-card {
    max-width: 640px;
    margin: 0 auto;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* Log styles */
.log-action {
    font-weight: 500;
}

.log-details {
    color: var(--text-secondary);
    font-size: 13px;
}

.log-time {
    color: var(--text-muted);
    font-size: 12px;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .hamburger {
        display: flex;
    }
}

@media (max-width: 768px) {
    .navbar-content {
        flex-direction: column;
        gap: 16px;
    }
    
    .navbar-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .login-box {
        padding: 32px 24px;
    }
    
    .welcome-banner {
        padding: 24px;
    }
    
    .welcome-banner h1 {
        font-size: 20px;
    }
    
    .welcome-banner .welcome-date {
        position: static;
        margin-top: 12px;
        display: block;
    }
    
    table th,
    table td {
        padding: 12px;
        font-size: 13px;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .action-buttons .btn {
        width: 100%;
    }
    
    .card-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
    
    .modal-buttons {
        flex-direction: column;
    }
    
    .modal-buttons .btn {
        width: 100%;
    }
    
    .content-area {
        padding: 16px;
    }
    
    .quick-actions {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 16px;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .stat-card .stat-value {
        font-size: 24px;
    }
    
    .page-title {
        font-size: 16px;
    }
    
    .user-details {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.hidden { display: none; }

.link {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 14px;
}

.link:hover {
    text-decoration: underline;
}