/**
 * Zootex CRM Styles
 * Modern, Clean Design
 */

/* ==========================================
   CSS Variables
   ========================================== */
:root {
    /* Colors */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #0ea5e9;

    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Layout */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    --header-height: 64px;
    --border-radius: 8px;
    --border-radius-lg: 12px;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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);

    /* Transitions */
    --transition: all 0.2s ease;
}

/* ==========================================
   Reset & Base
   ========================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--gray-800);
    background-color: var(--gray-100);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

button {
    cursor: pointer;
    font-family: inherit;
}

input, select, textarea, button {
    font-family: inherit;
    font-size: inherit;
}

/* ==========================================
   Layout
   ========================================== */
.app-container {
    display: flex;
    min-height: 100vh;
}

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

.content {
    flex: 1;
    padding: 24px;
}

/* ==========================================
   Sidebar
   ========================================== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: var(--transition);
}

.sidebar-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-img {
    height: 36px;
    width: auto;
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--gray-900);
}

.sidebar-close {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--gray-500);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 16px 12px;
}

.nav-list {
    list-style: none;
}

.nav-item {
    margin-bottom: 4px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    border-radius: var(--border-radius);
    color: var(--gray-600);
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.nav-link.active {
    background: var(--primary);
    color: var(--white);
}

.nav-link i {
    width: 20px;
    text-align: center;
    font-size: 16px;
}

.nav-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 16px 0;
}

.nav-heading {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 8px 16px;
}

/* Submenu */
.has-submenu .nav-link {
    justify-content: flex-start;
}

.submenu-arrow {
    margin-left: auto;
    font-size: 12px;
    transition: var(--transition);
}

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

.submenu {
    display: none;
    list-style: none;
    padding-left: 44px;
    margin-top: 4px;
}

.has-submenu.open .submenu {
    display: block;
}

.submenu a {
    display: block;
    padding: 8px 16px;
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    border-radius: var(--border-radius);
}

.submenu a:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--gray-200);
}

.sidebar-footer .copyright {
    text-align: center;
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

.sidebar-footer .copyright a {
    color: var(--gray-500);
}

.sidebar-footer .copyright a:hover {
    color: var(--primary);
}

/* ==========================================
   Header
   ========================================== */
.header {
    height: var(--header-height);
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--gray-600);
    padding: 8px;
}

.page-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
}

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

.language-switcher .lang-link {
    padding: 6px 12px;
    background: var(--gray-100);
    border-radius: var(--border-radius);
    font-weight: 500;
    color: var(--gray-700);
}

.language-switcher .lang-link:hover {
    background: var(--gray-200);
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    background: none;
    border: none;
    cursor: pointer;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 1000;
}

.dropdown.open .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: var(--gray-700);
    transition: var(--transition);
}

.dropdown-item:hover {
    background: var(--gray-100);
}

.dropdown-item i {
    width: 16px;
    text-align: center;
}

.dropdown-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 4px 0;
}

/* Notifications Dropdown */
.notification-btn {
    position: relative;
    padding: 8px;
    font-size: 18px;
    color: var(--gray-600);
}

.notification-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    min-width: 18px;
    height: 18px;
    background: var(--danger);
    color: var(--white);
    font-size: 11px;
    font-weight: 600;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

.notification-menu {
    width: 360px;
    max-height: 400px;
    display: flex;
    flex-direction: column;
}

.notification-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.notification-header h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.mark-all-read {
    font-size: var(--font-size-xs);
    color: var(--primary);
}

.notification-list {
    flex: 1;
    overflow-y: auto;
}

.notification-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-100);
    cursor: pointer;
    transition: var(--transition);
}

.notification-item:hover {
    background: var(--gray-50);
}

.notification-item.unread {
    background: var(--primary);
    background: rgba(37, 99, 235, 0.05);
}

.notification-empty {
    padding: 24px;
    text-align: center;
    color: var(--gray-500);
}

.notification-footer {
    padding: 12px;
    text-align: center;
    border-top: 1px solid var(--gray-200);
}

/* User Dropdown */
.user-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px;
    border-radius: var(--border-radius);
}

.user-btn:hover {
    background: var(--gray-100);
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.user-name {
    color: var(--gray-700);
    font-weight: 500;
}

.user-btn .fa-chevron-down {
    font-size: 10px;
    color: var(--gray-500);
}

/* ==========================================
   Cards
   ========================================== */
.card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    box-shadow: var(--shadow);
}

.stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.stat-icon.primary {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.stat-icon.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.stat-icon.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.stat-icon.danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin-top: 4px;
}

/* ==========================================
   Forms
   ========================================== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--gray-700);
}

.form-label.required::after {
    content: ' *';
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    color: var(--gray-800);
    background: var(--white);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.form-control::placeholder {
    color: var(--gray-400);
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 10px center;
    background-repeat: no-repeat;
    background-size: 20px;
    padding-right: 40px;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

.form-text {
    margin-top: 4px;
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.invalid-feedback {
    margin-top: 4px;
    font-size: var(--font-size-sm);
    color: var(--danger);
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-check-input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-check-label {
    cursor: pointer;
    user-select: none;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--border-radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border-color: var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-200);
}

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

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

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

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

.btn-outline {
    background: transparent;
    border-color: var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover {
    background: var(--gray-100);
}

.btn-sm {
    padding: 6px 12px;
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: 14px 28px;
    font-size: var(--font-size-base);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
}

.btn-group {
    display: flex;
    gap: 8px;
}

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

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

.table th,
.table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    font-weight: 600;
    color: var(--gray-600);
    background: var(--gray-50);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.table tbody tr:hover {
    background: var(--gray-50);
}

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

.table-actions {
    display: flex;
    gap: 8px;
}

/* ==========================================
   Badges
   ========================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: 9999px;
}

.badge-primary {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: #b45309;
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.badge-secondary {
    background: var(--gray-100);
    color: var(--gray-600);
}

.badge-info {
    background: rgba(14, 165, 233, 0.1);
    color: var(--info);
}

/* ==========================================
   Alerts
   ========================================== */
.alert {
    padding: 14px 16px;
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: #065f46;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    color: #92400e;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.alert-danger,
.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: #991b1b;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-info {
    background: rgba(14, 165, 233, 0.1);
    color: #075985;
    border: 1px solid rgba(14, 165, 233, 0.2);
}

.alert-close {
    background: none;
    border: none;
    font-size: 16px;
    opacity: 0.5;
    cursor: pointer;
}

.alert-close:hover {
    opacity: 1;
}

.flash-messages {
    padding: 0 24px;
    padding-top: 16px;
}

/* ==========================================
   Modal
   ========================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.95) translateY(20px);
    transition: var(--transition);
}

.modal-overlay.show .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--gray-500);
    cursor: pointer;
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* ==========================================
   Pagination
   ========================================== */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 24px;
}

.pagination-list {
    display: flex;
    list-style: none;
    gap: 4px;
}

.pagination-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    color: var(--gray-700);
    font-size: var(--font-size-sm);
}

.pagination-link:hover {
    background: var(--gray-100);
}

.pagination-link.is-current {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

.pagination-ellipsis {
    padding: 0 8px;
    color: var(--gray-500);
}

/* ==========================================
   Auth Page
   ========================================== */
.auth-page {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

.auth-language {
    text-align: right;
    margin-bottom: 16px;
}

.auth-language .lang-link {
    color: var(--white);
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
}

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

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo .logo-img {
    height: 60px;
    margin-bottom: 12px;
}

.auth-logo .logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
}

.auth-title {
    text-align: center;
    font-size: var(--font-size-lg);
    margin-bottom: 24px;
    color: var(--gray-600);
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
}

.auth-footer a {
    color: rgba(255, 255, 255, 0.9);
}

.auth-footer a:hover {
    color: var(--white);
}

/* ==========================================
   Empty State
   ========================================== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state-icon {
    font-size: 48px;
    color: var(--gray-300);
    margin-bottom: 16px;
}

.empty-state-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.empty-state-text {
    color: var(--gray-500);
    margin-bottom: 20px;
}

/* ==========================================
   Loading
   ========================================== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==========================================
   Responsive
   ========================================== */
@media (max-width: 991px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-close {
        display: block;
    }

    .sidebar-toggle {
        display: block;
    }

    .main-content {
        margin-left: 0;
    }

    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .sidebar-overlay.show {
        opacity: 1;
        visibility: visible;
    }
}

@media (max-width: 768px) {
    .content {
        padding: 16px;
    }

    .header {
        padding: 0 16px;
    }

    .user-name {
        display: none;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .card-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .table th,
    .table td {
        padding: 10px 12px;
    }

    .notification-menu {
        width: 300px;
    }

    .modal {
        margin: 16px;
        max-width: calc(100% - 32px);
    }

    .auth-box {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .page-title {
        font-size: var(--font-size-base);
    }

    .btn-group {
        flex-direction: column;
    }
}

/* ==========================================
   Utilities
   ========================================== */
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }
.text-muted { color: var(--gray-500) !important; }

.bg-primary { background-color: var(--primary) !important; }
.bg-success { background-color: var(--success) !important; }
.bg-warning { background-color: var(--warning) !important; }
.bg-danger { background-color: var(--danger) !important; }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 4px !important; }
.mb-2 { margin-bottom: 8px !important; }
.mb-3 { margin-bottom: 16px !important; }
.mb-4 { margin-bottom: 24px !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 4px !important; }
.mt-2 { margin-top: 8px !important; }
.mt-3 { margin-top: 16px !important; }
.mt-4 { margin-top: 24px !important; }

.d-flex { display: flex; }
.d-block { display: block; }
.d-none { display: none; }

.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 16px; }

.flex-wrap { flex-wrap: wrap; }

/* Responsive grid layouts */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.grid-2-1 {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}
.grid-1 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4, .grid-2-1 {
        grid-template-columns: 1fr;
    }
    .notification-menu {
        width: calc(100vw - 32px);
        right: -60px;
    }
    .d-flex.gap-3 {
        flex-wrap: wrap;
    }
    .d-flex.gap-3 > .form-group {
        min-width: 0 !important;
        flex: 1 1 100%;
    }
    .content {
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .grid-2, .grid-3, .grid-4, .grid-2-1 {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .content {
        padding: 8px;
    }
    .card-body {
        padding: 12px;
    }
    .table th, .table td {
        padding: 8px 6px;
        font-size: 13px;
    }
    .btn {
        padding: 6px 12px;
        font-size: 13px;
    }
    .notification-menu {
        right: -100px;
    }
}