/* CSS Custom Properties */
:root {
    --primary-color: #667eea;
    --primary-hover: #5a6fd8;
    --secondary-color: #764ba2;
    --background-color: #f5f7fa;
    --card-background: white;
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    --text-primary: #333;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --success-color: #10b981;
    --success-hover: #059669;
    --warning-color: #f59e0b;
    --warning-hover: #d97706;
    --error-color: #ef4444;
    --error-hover: #dc2626;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
    --spacing-3xl: 3rem;
    
    /* Border radius */
    --border-radius-sm: 6px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.2s ease;
    
    /* Typography */
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    
    /* Z-index */
    --z-dropdown: 10;
    --z-modal: 100;
    --z-tooltip: 1000;
    
    /* Premium colors */
    --premium-color: #fbbf24;
    --premium-hover: #f59e0b;
    --premium-background: #fef3c7;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Utility Classes */
.flex-center { 
    display: flex; 
    align-items: center; 
    justify-content: center; 
}

.text-truncate { 
    overflow: hidden; 
    text-overflow: ellipsis; 
    white-space: nowrap; 
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Base Button Styles */
.btn-base {
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    border: none;
    font-size: var(--font-size-base);
    text-decoration: none;
}

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

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

.btn-secondary {
    background: var(--card-background);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

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

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

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

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

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

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: var(--spacing-2xl) 0;
    text-align: center;
    margin: 0 -20px var(--spacing-2xl) -20px;
    box-shadow: var(--shadow-lg);
}

.header h1 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.header h1 i {
    margin-right: var(--spacing-sm);
    color: #ffd700;
}

.subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    font-weight: 300;
}

/* Accessibility Improvements */
/* Better focus styles */
.btn-base:focus-visible,
.search-input:focus-visible,
.filter-select:focus-visible,
.filter-input:focus-visible,
.sort-select:focus-visible,
.pagination-btn:focus-visible,
.page-number:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Higher contrast option */
@media (prefers-contrast: high) {
    .business-card {
        border: 2px solid var(--border-color);
    }
    
    .btn-base {
        border: 2px solid currentColor;
    }
}

/* Main Content */
.main-content {
    flex: 1;
    padding-bottom: 2rem;
}

/* Search and Filter Controls */
.controls-section {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.search-container {
    margin-bottom: 1.5rem;
}

.search-input-wrapper {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #667eea;
    font-size: 1.1rem;
}

.search-input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.75rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    background: #f8fafc;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.clear-button {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: color 0.2s ease;
}

.clear-button:hover {
    color: #667eea;
}

.filters-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: end;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
}

.filter-label i {
    color: #667eea;
}

.filter-select, .filter-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.95rem;
    background: #f8fafc;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-select:focus, .filter-input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.filter-input {
    cursor: text;
}

.reset-filters-button {
    background: #f1f5f9;
    color: #475569;
    border: 2px solid #e2e8f0;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.reset-filters-button:hover {
    background: #e2e8f0;
    border-color: #cbd5e1;
}

/* Active filter indicator */
.filter-select.active, .filter-input.active {
    border-color: #667eea;
    background: white;
}

.search-input.active {
    border-color: #667eea;
    background: white;
}

/* Loading State */
.loading-container {
    text-align: center;
    padding: 4rem 0;
}

.loading-spinner {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.loading-text {
    font-size: 1.2rem;
    color: #666;
}

/* Error State */
.error-container {
    text-align: center;
    padding: 4rem 0;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin: 2rem 0;
}

.error-icon {
    font-size: 4rem;
    color: #e74c3c;
    margin-bottom: 1rem;
}

.error-title {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 1rem;
}

.error-message {
    font-size: 1rem;
    color: #666;
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.retry-button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.retry-button:hover {
    background: var(--primary-hover);
}

/* Results Header */
.results-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.results-info {
    flex: 1;
}

.results-info h2 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 0.5rem;
}

.results-info h2 i {
    margin-right: 0.5rem;
    color: #667eea;
}

.results-count {
    font-size: 1rem;
    color: #666;
}

.results-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.sort-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sort-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: #374151;
    white-space: nowrap;
}

.sort-label i {
    color: #667eea;
    margin-right: 0.25rem;
}

.sort-select {
    padding: 0.5rem 0.75rem;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    font-size: 0.9rem;
    background: #f8fafc;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 150px;
}

.sort-select:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.export-button {
    background: var(--success-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    white-space: nowrap;
}

.export-button:hover {
    background: var(--success-hover);
}

.export-button:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
}

.toggle-map-button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    white-space: nowrap;
}

.toggle-map-button:hover {
    background: var(--primary-hover);
}

.toggle-map-button.active {
    background: var(--warning-color);
}

.toggle-map-button.active:hover {
    background: var(--warning-hover);
}

/* Business Cards */
.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

/* Performance optimization: Staggered animations */
.business-card {
    animation: fadeInUp 0.3s ease forwards;
    animation-delay: calc(var(--card-index, 0) * 0.05s);
}

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

.business-card {
    background: var(--card-background);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
    border: 1px solid var(--border-color);
}

.business-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-hover);
}

.business-header {
    margin-bottom: 1rem;
}

.business-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

.trade-name {
    font-size: var(--font-size-base);
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.ownership-type {
    display: inline-block;
    background: linear-gradient(135deg, #e8f2ff 0%, var(--background-color) 100%);
    color: var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border: 1px solid var(--border-color);
}

.business-details {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.detail-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f8fafc;
}

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

.detail-icon {
    color: #667eea;
    width: 18px;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.detail-content {
    flex: 1;
}

.detail-label {
    font-weight: 600;
    color: #374151;
    font-size: 0.875rem;
    margin-bottom: 0.1rem;
}

.detail-value {
    color: #6b7280;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin: 2rem 0;
}

.empty-icon {
    font-size: 4rem;
    color: #cbd5e1;
    margin-bottom: 1.5rem;
}

.empty-title {
    font-size: 1.5rem;
    color: #374151;
    margin-bottom: 1rem;
    font-weight: 600;
}

.empty-message {
    font-size: 1rem;
    color: #6b7280;
    margin-bottom: 2rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}

.clear-all-button {
    background: #667eea;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.clear-all-button:hover {
    background: #5a6fd8;
}

/* Pagination */
.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.pagination-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    color: #6b7280;
    font-size: 0.9rem;
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pagination-btn {
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    color: #374151;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    min-width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pagination-btn:hover:not(:disabled) {
    background: #e2e8f0;
    border-color: #cbd5e1;
}

.pagination-btn:disabled {
    background: #f1f5f9;
    color: #9ca3af;
    cursor: not-allowed;
}

.page-numbers {
    display: flex;
    gap: 0.25rem;
}

.page-number {
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    color: #374151;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    min-width: 40px;
    text-align: center;
}

.page-number:hover {
    background: #e2e8f0;
    border-color: #cbd5e1;
}

.page-number.active {
    background: #667eea;
    border-color: #667eea;
    color: white;
}

.page-number.active:hover {
    background: #5a6fd8;
    border-color: #5a6fd8;
}

/* Map Styles */
.map-container {
    width: 100%;
    height: 600px;
    margin-top: 1.5rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.map {
    width: 100%;
    height: 100%;
}

/* Leaflet popup customization */
.leaflet-popup-content-wrapper {
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.leaflet-popup-content {
    margin: 12px 16px;
    line-height: 1.4;
}

.map-popup {
    max-width: 250px;
}

.map-popup h4 {
    margin: 0 0 8px 0;
    font-size: 1.1rem;
    color: #1e293b;
}

.map-popup p {
    margin: 4px 0;
    font-size: 0.9rem;
    color: #4b5563;
}

.map-popup .business-category {
    color: #667eea;
    font-weight: 500;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    color: #6b7280;
    border-top: 1px solid #e2e8f0;
    margin-top: 2rem;
}

.footer i {
    margin-right: 0.5rem;
    color: #667eea;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .header {
        margin: 0 -15px 1.5rem -15px;
        padding: 1.5rem 0;
    }

    .header h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .controls-section {
        padding: 1.25rem;
    }

    .filters-container {
        flex-direction: column;
        gap: 1rem;
    }

    .filter-group {
        min-width: unset;
    }

    .reset-filters-button {
        align-self: stretch;
        justify-content: center;
    }

    .cards-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .business-card {
        padding: 1.5rem;
    }

    .business-name {
        font-size: 1.25rem;
    }

    .results-header {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    .results-controls {
        justify-content: center;
        margin-top: 1rem;
    }

    .results-header h2 {
        font-size: 1.7rem;
    }

    .pagination-container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .pagination-info {
        align-items: center;
    }

    .page-numbers {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.7rem;
    }

    .controls-section {
        padding: 1rem;
    }

    .search-input {
        padding: 0.75rem 1rem 0.75rem 2.5rem;
    }

    .filter-select {
        padding: 0.65rem;
    }

    .business-card {
        padding: 1.25rem;
    }

    .business-name {
        font-size: 1.15rem;
    }

    .detail-item {
        gap: 0.5rem;
        padding: 0.4rem 0;
    }

    .empty-state {
        padding: 3rem 1rem;
    }

    .empty-icon {
        font-size: 3rem;
    }

    .sort-group {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }

    .sort-select {
        min-width: unset;
    }

    .export-button, .toggle-map-button {
        align-self: stretch;
        justify-content: center;
    }
    
    .map-container {
        height: 400px;
        margin-top: 1rem;
    }

    .pagination-controls {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.25rem;
    }

    .pagination-btn {
        min-width: 35px;
        padding: 0.4rem 0.6rem;
    }

    .page-number {
        min-width: 35px;
        padding: 0.4rem 0.6rem;
    }
}

/* Animation for card appearance */
.business-card {
    animation: fadeInUp 0.5s ease forwards;
    opacity: 0;
    transform: translateY(20px);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stagger animation for cards */
.business-card:nth-child(1) { animation-delay: 0.1s; }
.business-card:nth-child(2) { animation-delay: 0.2s; }
.business-card:nth-child(3) { animation-delay: 0.3s; }
.business-card:nth-child(4) { animation-delay: 0.4s; }
.business-card:nth-child(5) { animation-delay: 0.5s; }
.business-card:nth-child(6) { animation-delay: 0.6s; }
.business-card:nth-child(7) { animation-delay: 0.7s; }
.business-card:nth-child(8) { animation-delay: 0.8s; }
.business-card:nth-child(9) { animation-delay: 0.9s; }
.business-card:nth-child(10) { animation-delay: 1.0s; }

/* Contact Button and Lead Generation */
.business-actions {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
}

.contact-btn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 140px;
    justify-content: center;
}

.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.contact-btn:active {
    transform: translateY(0);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.contact-modal {
    background: var(--card-background);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    opacity: 0;
    animation: modalFadeIn 0.3s ease forwards;
}

@keyframes modalFadeIn {
    to {
        transform: scale(1);
        opacity: 1;
    }
}

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

.modal-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    cursor: pointer;
    color: var(--text-muted);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-body p {
    margin: 0 0 var(--spacing-lg) 0;
    color: var(--text-secondary);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    transition: var(--transition);
    box-sizing: border-box;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.modal-footer {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition);
}

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

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

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

.btn-primary:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
}

/* Success Notification */
.success-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--success-color);
    color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    z-index: 1001;
    transform: translateX(100%);
    animation: slideInRight 0.3s ease forwards;
    max-width: 350px;
}

@keyframes slideInRight {
    to {
        transform: translateX(0);
    }
}

.success-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.success-content i {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
}

.success-content h4 {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.success-content p {
    margin: 0;
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* Alert Buttons */
.alert-button {
    background: var(--warning-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    white-space: nowrap;
}

.alert-button:hover {
    background: var(--warning-hover);
}

.alert-button.secondary {
    background: var(--text-secondary);
}

.alert-button.secondary:hover {
    background: var(--text-primary);
}

/* Alert Management Modal */
.alert-management-modal {
    max-width: 600px;
}

.alerts-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.alert-item {
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.alert-item.inactive {
    opacity: 0.6;
    background: var(--background-color);
}

.alert-details {
    flex: 1;
}

.alert-email {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.alert-criteria {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.alert-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.btn-danger {
    background: var(--error-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: var(--transition);
}

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

.alert-info {
    background: #e0f2fe;
    border: 1px solid #81d4fa;
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.alert-info i {
    color: #0277bd;
    margin-top: 2px;
}

.alert-info span {
    font-size: var(--font-size-sm);
    color: #0277bd;
    line-height: 1.4;
}

/* Authentication and Premium Styles */
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.header-left h1 {
    margin: 0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.auth-button {
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--card-background);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.user-avatar img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.user-name {
    font-weight: 600;
    font-size: var(--font-size-sm);
}

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

.user-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.premium-badge {
    background: var(--premium-background);
    color: var(--premium-hover);
    padding: 2px var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 2px;
}

.btn-upgrade {
    background: var(--premium-color);
    color: var(--text-primary);
    border: none;
    padding: 2px var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-upgrade:hover {
    background: var(--premium-hover);
}

.btn-logout {
    background: var(--error-color);
    color: white;
    border: none;
    padding: 2px var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-logout:hover {
    background: var(--error-hover);
}

/* Premium Feature Styles */
.premium-feature {
    position: relative;
}

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

.premium-feature.disabled:hover {
    transform: none;
}

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

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

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

.analytics-button:hover {
    background: var(--success-hover);
}

/* Modal Styles for Premium Features */
.upgrade-modal .modal-content {
    max-width: 500px;
}

.upgrade-message {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.premium-features {
    background: var(--premium-background);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
}

.premium-features h4 {
    margin-bottom: var(--spacing-md);
    color: var(--premium-hover);
}

.premium-features ul {
    list-style: none;
    padding: 0;
}

.premium-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.premium-features .fa-check {
    color: var(--success-color);
}

.subscription-modal .modal-content {
    max-width: 600px;
}

.analytics-modal .modal-content {
    max-width: 900px;
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.analytics-card {
    background: var(--card-background);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
}

.analytics-card h4 {
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.analytics-stat {
    margin-bottom: var(--spacing-md);
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--success-color);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.analytics-details {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Responsive Design for Authentication */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    
    .user-info {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .user-actions {
        justify-content: center;
    }
    
    .analytics-grid {
        grid-template-columns: 1fr;
    }
}