/* ============================================
   Ontech CRM - Template Specification Styles
   Brand Colors: Green #8CC63F, Orange #F68620
   Version: 2.0 | December 2025
   ============================================ */

:root {
    /* ===== Ontech Brand Colors ===== */
    --ontech-green: #8CC63F;
    --ontech-green-light: #9ED250;
    --ontech-green-dark: #6BA32E;
    --ontech-orange: #F68620;
    --ontech-orange-light: #F89A3D;
    --ontech-orange-dark: #E07510;

    /* ===== Primary Theme (Using Ontech Green) ===== */
    --primary: #8CC63F;
    --primary-light: #9ED250;
    --primary-dark: #6BA32E;
    --secondary: #F68620;
    --secondary-light: #F89A3D;
    --secondary-dark: #E07510;

    /* ===== Text Colors ===== */
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-white: #ffffff;

    /* ===== Background Colors ===== */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-dark: #1f2937;
    --bg-sidebar: #1a1f36;

    /* ===== Border Colors ===== */
    --border-light: #e5e7eb;
    --border-medium: #d1d5db;
    --border-dark: #9ca3af;

    /* ===== Status Colors ===== */
    --status-success: #10b981;
    --status-warning: #f59e0b;
    --status-danger: #ef4444;
    --status-info: #3b82f6;

    /* ===== Gradients ===== */
    --gradient-primary: linear-gradient(135deg, #8CC63F 0%, #6BA32E 100%);
    --gradient-secondary: linear-gradient(135deg, #F68620 0%, #E07510 100%);
    --gradient-dark: linear-gradient(135deg, #1a1f36 0%, #2d3250 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #f87171 100%);
    --gradient-info: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    --gradient-purple: linear-gradient(135deg, #667eea 0%, #764ba2 100%);

    /* ===== Module Colors ===== */
    --module-customers: #8CC63F;
    --module-customers-gradient: linear-gradient(135deg, #8CC63F 0%, #6BA32E 100%);
    --module-cases: #6366f1;
    --module-cases-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --module-collections: #F68620;
    --module-collections-gradient: linear-gradient(135deg, #F68620 0%, #E07510 100%);
    --module-campaigns: #2563eb;
    --module-campaigns-gradient: linear-gradient(135deg, #2563eb 0%, #6366f1 100%);
    --module-loans: #10b981;
    --module-loans-gradient: linear-gradient(135deg, #10b981 0%, #34d399 100%);

    /* ===== Shadows ===== */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

    /* ===== Spacing ===== */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* ===== Border Radius ===== */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* ===== Transitions ===== */
    --transition-fast: all 0.15s ease;
    --transition-base: all 0.2s ease;
    --transition-slow: all 0.3s ease;

    /* ===== Sidebar ===== */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    --header-height: 60px;
}

/* ===== Global Reset ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-width);
    background: #ffffff;
    color: var(--text-primary);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-right: 1px solid var(--border-light);
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--border-light);
    min-height: var(--header-height);
}

.sidebar-logo {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.sidebar-brand {
    font-size: 1.25rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    color: var(--text-primary);
}

.sidebar.collapsed .sidebar-brand,
.sidebar.collapsed .nav-text,
.sidebar.collapsed .nav-badge {
    display: none;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 0.25rem;
}

.nav-section-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    padding: 0.6rem 1.25rem;
    margin-bottom: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
    user-select: none;
}

.nav-section-title:hover {
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.02);
}

.nav-section-title .section-chevron {
    font-size: 0.6rem;
    transition: transform 0.2s ease;
}

.nav-section.section-collapsed .nav-section-title .section-chevron {
    transform: rotate(-90deg);
}

.nav-section.section-collapsed .nav-item {
    display: none;
}

.sidebar.collapsed .nav-section-title {
    text-align: center;
    padding: 0.5rem;
    justify-content: center;
}

.sidebar.collapsed .nav-section-title .section-chevron {
    display: none;
}

.nav-item {
    padding: 0 0.75rem;
    margin-bottom: 0.25rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--primary);
    background: rgba(140, 198, 63, 0.08);
}

.nav-link.active {
    color: var(--primary);
    background: rgba(140, 198, 63, 0.12);
    font-weight: 600;
}

.nav-link i {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.nav-text {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
}

.nav-badge {
    background: var(--ontech-orange);
    color: white;
    font-size: 0.65rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-full);
    min-width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-light);
}

.sidebar-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-base);
    font-size: 0.85rem;
}

.sidebar-toggle:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: var(--transition-base);
}

.sidebar.collapsed + .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

/* ===== Top Header ===== */
.top-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: 0 1.5rem;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-search {
    position: relative;
    width: 300px;
}

.header-search input {
    width: 100%;
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    background: var(--bg-secondary);
    transition: var(--transition-base);
}

.header-search input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-primary);
    box-shadow: 0 0 0 3px rgba(140, 198, 63, 0.1);
}

.header-search i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-icon-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: none;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
}

.header-icon-btn:hover {
    background: var(--bg-tertiary);
    color: var(--primary);
}

.header-icon-btn .badge {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 18px;
    height: 18px;
    background: var(--status-danger);
    color: white;
    font-size: 0.65rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-dropdown {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-base);
}

.user-dropdown:hover {
    background: var(--bg-secondary);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.user-info {
    text-align: left;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== Page Container ===== */
.page-container {
    padding: 1.5rem;
    max-width: 100%;
}

/* ===== Page Header ===== */
.page-header {
    background: #ffffff;
    color: var(--text-primary);
    padding: 1.5rem 2rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-light);
}

.page-header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
}

.page-header h1 i {
    color: var(--primary);
}

.page-header p {
    margin: 0.5rem 0 0 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.page-header-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Module-specific page headers */
.page-header.customers,
.page-header.cases,
.page-header.collections,
.page-header.campaigns,
.page-header.loans {
    background: #ffffff;
    color: var(--text-primary);
}

/* ===== Stats Cards ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stats-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition-base);
    border: 1px solid var(--border-light);
}

.stats-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stats-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.stats-icon.primary { background: var(--gradient-primary); }
.stats-icon.secondary { background: var(--gradient-secondary); }
.stats-icon.success { background: var(--gradient-success); }
.stats-icon.warning { background: var(--gradient-warning); }
.stats-icon.danger { background: var(--gradient-danger); }
.stats-icon.info { background: var(--gradient-info); }
.stats-icon.purple { background: var(--gradient-purple); }

.stats-content {
    flex: 1;
}

.stats-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stats-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 0.25rem;
}

.stats-change {
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

.stats-change.up { color: var(--status-success); }
.stats-change.down { color: var(--status-danger); }

/* ===== Filter Section ===== */
.filters-section {
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-light);
}

.filters-section .form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.filters-section .form-control,
.filters-section .form-select {
    border-radius: var(--radius-md);
    border-color: var(--border-light);
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
}

.filters-section .form-control:focus,
.filters-section .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(140, 198, 63, 0.1);
}

/* ===== Tables ===== */
.table-container {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    overflow: hidden;
}

.table {
    margin-bottom: 0;
    font-size: 0.875rem;
}

.table thead th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 1rem;
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border-light);
    white-space: nowrap;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--bg-tertiary);
}

.table tbody tr:hover {
    background-color: rgba(140, 198, 63, 0.02);
}

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

/* ===== Content Cards ===== */
.content-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    overflow: hidden;
}

.card-header-custom {
    background: var(--bg-secondary);
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-light);
}

.card-header-custom h6 {
    margin: 0;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body-custom {
    padding: 1.25rem;
}

/* ===== Buttons ===== */
.btn {
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.625rem 1.25rem;
    transition: var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

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

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

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

.btn-outline-primary {
    border-color: var(--primary);
    color: var(--primary);
}

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

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

.btn-light:hover {
    background: var(--bg-secondary);
}

/* ===== Badges ===== */
.badge-status {
    font-size: 0.75rem;
    padding: 0.35em 0.65em;
    border-radius: var(--radius-full);
    font-weight: 500;
}

.badge-success { background: var(--status-success); color: white; }
.badge-warning { background: var(--status-warning); color: #1f2937; }
.badge-danger { background: var(--status-danger); color: white; }
.badge-info { background: var(--status-info); color: white; }
.badge-primary { background: var(--primary); color: white; }
.badge-secondary { background: var(--secondary); color: white; }

/* Priority badges */
.priority-low { background-color: var(--status-success); }
.priority-medium { background-color: var(--status-warning); color: #212529; }
.priority-high { background-color: var(--secondary); }
.priority-critical { background-color: var(--status-danger); }

/* ===== Channel Icons ===== */
.channel-icon {
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: white;
}

.channel-whatsapp { background: linear-gradient(135deg, #25D366, #128C7E); }
.channel-facebook { background: linear-gradient(135deg, #1877F2, #0a5dc2); }
.channel-email { background: linear-gradient(135deg, #EA4335, #d33426); }
.channel-sms { background: linear-gradient(135deg, #6c757d, #545b62); }
.channel-phone, .channel-call { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.channel-livechat { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.channel-ussd { background: linear-gradient(135deg, var(--secondary), var(--secondary-dark)); }
.channel-web { background: linear-gradient(135deg, #198754, #146c43); }
.channel-voice { background: linear-gradient(135deg, #e83e8c, #c82870); }
.channel-walk_in { background: linear-gradient(135deg, #fd7e14, #e36b02); }

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h5 {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.empty-state p {
    font-size: 0.875rem;
    max-width: 400px;
    margin: 0 auto 1rem;
}

/* ===== Loading States ===== */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-light);
    border-top-color: var(--primary);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

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

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 10000;
}

.toast-custom {
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 1rem 1.25rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-left: 4px solid;
    min-width: 300px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast-success { border-color: var(--status-success); }
.toast-warning { border-color: var(--status-warning); }
.toast-danger { border-color: var(--status-danger); }
.toast-info { border-color: var(--status-info); }

/* ===== Modals ===== */
.modal-content {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 1.25rem 1.5rem;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
    opacity: 0.8;
}

.modal-header .btn-close:hover {
    opacity: 1;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-light);
}

/* ===== Forms ===== */
.form-control,
.form-select {
    border-radius: var(--radius-md);
    border-color: var(--border-light);
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    transition: var(--transition-base);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(140, 198, 63, 0.1);
}

.form-label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

/* ===== Tabs ===== */
.nav-tabs-custom {
    border-bottom: 2px solid var(--border-light);
    gap: 0.5rem;
}

.nav-tabs-custom .nav-link {
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem 1.25rem;
    font-weight: 500;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    margin-bottom: -2px;
    transition: var(--transition-base);
}

.nav-tabs-custom .nav-link:hover {
    color: var(--primary);
    background: rgba(140, 198, 63, 0.05);
}

.nav-tabs-custom .nav-link.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
    background: transparent;
}

/* ===== Quick Actions ===== */
.quick-actions {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.quick-action-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-base);
}

.quick-action-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(140, 198, 63, 0.05);
}

.quick-action-btn i {
    font-size: 1rem;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

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

    .header-search {
        width: 200px;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 1.25rem 1.5rem;
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

    .page-container {
        padding: 1rem;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .header-search {
        display: none;
    }

    .user-info {
        display: none;
    }
}

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

    .page-header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .page-header-actions {
        width: 100%;
    }

    .page-header-actions .btn {
        flex: 1;
    }
}

/* ===== Footer ===== */
.app-footer {
    padding: 1rem 1.5rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-light);
    background: var(--bg-primary);
}

.app-footer img {
    height: 20px;
    opacity: 0.6;
    margin-right: 0.5rem;
}

/* ===== Modern Notification System ===== */
.notification-wrapper {
    position: relative;
}

.notification-trigger {
    position: relative;
}

.notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    font-size: 0.65rem;
    font-weight: 600;
    color: white;
    background: var(--status-danger);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid white;
    box-shadow: var(--shadow-sm);
}

.notification-badge.pulse {
    animation: badgePulse 0.5s ease-out;
}

@keyframes badgePulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.3); }
    100% { transform: scale(1); }
}

/* Notification Dropdown */
.notification-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: -100px;
    width: 380px;
    max-height: 520px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    z-index: 1050;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
}

.notification-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.notification-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-light);
    background: linear-gradient(135deg, var(--primary) 0%, #7ab82e 100%);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.notification-header h6 {
    margin: 0;
    font-weight: 600;
    color: white;
    font-size: 0.95rem;
}

.notification-actions {
    display: flex;
    gap: 0.5rem;
}

.notification-actions .btn-link {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
}

.notification-actions .btn-link:hover {
    background: rgba(255,255,255,0.3);
}

/* Notification Tabs */
.notification-tabs {
    display: flex;
    padding: 0.5rem 1rem;
    gap: 0.5rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
}

.notification-tab {
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-base);
}

.notification-tab:hover {
    color: var(--primary);
    background: rgba(140, 198, 63, 0.1);
}

.notification-tab.active {
    color: white;
    background: var(--primary);
}

/* Notification List */
.notification-list {
    max-height: 350px;
    overflow-y: auto;
}

.notification-list::-webkit-scrollbar {
    width: 6px;
}

.notification-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.notification-item {
    display: flex;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-light);
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
}

.notification-item:hover {
    background: var(--bg-secondary);
}

.notification-item.unread {
    background: rgba(140, 198, 63, 0.05);
}

.notification-item.unread::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary);
}

.notification-item.priority-urgent {
    border-left: 3px solid var(--status-danger);
}

.notification-item.priority-high::before {
    background: var(--status-warning);
}

/* Notification Icon */
.notification-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

.notification-icon.icon-primary {
    background: rgba(140, 198, 63, 0.15);
    color: var(--primary);
}

.notification-icon.icon-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--status-success);
}

.notification-icon.icon-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--status-warning);
}

.notification-icon.icon-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--status-danger);
}

.notification-icon.icon-info {
    background: rgba(59, 130, 246, 0.15);
    color: var(--status-info);
}

.notification-icon.icon-secondary {
    background: rgba(107, 114, 128, 0.15);
    color: var(--text-secondary);
}

/* Notification Content */
.notification-content {
    flex: 1;
    min-width: 0;
}

.notification-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.notification-message {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.notification-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.notification-time i {
    font-size: 0.65rem;
}

/* Dismiss Button */
.notification-dismiss {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    opacity: 0;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.notification-item:hover .notification-dismiss {
    opacity: 1;
}

.notification-dismiss:hover {
    background: var(--bg-secondary);
    color: var(--status-danger);
}

/* Empty State */
.notification-empty {
    padding: 3rem 1.5rem;
    text-align: center;
    color: var(--text-muted);
}

.notification-empty i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.notification-empty p {
    margin: 0;
    font-size: 0.9rem;
}

/* Loading State */
.notification-loading {
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

/* Footer */
.notification-footer {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border-light);
    background: var(--bg-secondary);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Permission Banner */
.notification-permission-banner {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    background: white;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1060;
    max-width: 400px;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.notification-permission-banner i {
    font-size: 1.5rem;
    color: var(--primary);
}

.notification-permission-banner span {
    flex: 1;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===== Notification Center Page ===== */
.notification-center {
    max-width: 800px;
    margin: 0 auto;
}

.notification-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.notification-filter-group {
    display: flex;
    gap: 0.5rem;
}

.notification-filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-base);
}

.notification-filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.notification-filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.notification-center-list {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.notification-center-item {
    display: flex;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition-base);
}

.notification-center-item:hover {
    background: var(--bg-secondary);
}

.notification-center-item.unread {
    background: rgba(140, 198, 63, 0.05);
    border-left: 4px solid var(--primary);
}

.notification-center-item:last-child {
    border-bottom: none;
}

.notification-center-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.25rem;
}

.notification-center-content {
    flex: 1;
}

.notification-center-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.notification-center-message {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 0.5rem;
}

.notification-center-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.notification-center-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-end;
}

.notification-action-btn {
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    background: white;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-base);
}

.notification-action-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.notification-action-btn.btn-danger:hover {
    border-color: var(--status-danger);
    color: var(--status-danger);
}

/* Notification Preferences */
.notification-preferences {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 1.5rem;
}

.preference-section {
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--border-light);
}

.preference-section:last-child {
    border-bottom: none;
}

.preference-section-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.preference-section-title i {
    color: var(--primary);
}

.preference-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
}

.preference-label {
    display: flex;
    flex-direction: column;
}

.preference-label span {
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
}

.preference-label small {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

/* Custom Toggle Switch */
.toggle-switch {
    position: relative;
    width: 48px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    border-radius: 26px;
    transition: var(--transition-base);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--primary);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(22px);
}

/* Responsive */
@media (max-width: 576px) {
    .notification-dropdown {
        width: calc(100vw - 2rem);
        right: -1rem;
    }

    .notification-permission-banner {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
        max-width: none;
    }
}