* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #93c5fd;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --light-bg: #ffffff;
    --light-card: #f8fafc;
    --light-text: #1f2937;
    --light-text-secondary: #6b7280;
    --light-border: #e5e7eb;
    --light-hover: #f3f4f6;
    --dark-bg: #0f172a;
    --dark-card: #1e293b;
    --dark-text: #f1f5f9;
    --dark-text-secondary: #94a3b8;
    --dark-border: #334155;
    --dark-hover: #475569;
    --blue-bg: #0c4a6e;
    --blue-card: #075985;
    --blue-text: #e0f2fe;
    --blue-text-secondary: #7dd3fc;
    --blue-border: #0369a1;
    --blue-hover: #0ea5e9;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.2s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--light-bg);
    color: var(--light-text);
    transition: background-color 0.3s ease, color 0.3s ease;
    line-height: 1.5;
    min-height: 100vh;
}

.dark-theme {
    background-color: var(--dark-bg);
    color: var(--dark-text);
}

.blue-theme {
    background-color: var(--blue-bg);
    color: var(--blue-text);
}

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

.navbar {
    padding: 20px 0;
    border-bottom: 1px solid var(--light-border);
    margin-bottom: 40px;
}

.dark-theme .navbar {
    border-bottom-color: var(--dark-border);
}

.blue-theme .navbar {
    border-bottom-color: var(--blue-border);
}

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

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
    transition: var(--transition);
}

.logo i {
    font-size: 1.5rem;
}

.version {
    font-size: 0.8rem;
    font-weight: 500;
    padding: 2px 8px;
    background: var(--primary-light);
    color: var(--primary-dark);
    border-radius: 20px;
}

.dark-theme .version {
    background: var(--dark-card);
    color: var(--dark-text);
}

.blue-theme .version {
    background: var(--blue-card);
    color: var(--blue-text);
}

.nav-buttons {
    display: flex;
    gap: 8px;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--light-border);
    background: var(--light-card);
    color: var(--light-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: var(--transition);
}

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

.dark-theme .icon-btn {
    border-color: var(--dark-border);
    background: var(--dark-card);
    color: var(--dark-text);
}

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

.blue-theme .icon-btn {
    border-color: var(--blue-border);
    background: var(--blue-card);
    color: var(--blue-text);
}

.blue-theme .icon-btn:hover {
    background: var(--blue-hover);
    color: white;
}

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

.hero-section {
    margin-bottom: 60px;
}

.hero-content {
    text-align: center;
    margin-bottom: 40px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--light-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.dark-theme .hero-subtitle {
    color: var(--dark-text-secondary);
}

.blue-theme .hero-subtitle {
    color: var(--blue-text-secondary);
}

.search-container {
    max-width: 800px;
    margin: 0 auto;
}

.search-form {
    margin-bottom: 32px;
}

.search-box {
    position: relative;
    margin-bottom: 24px;
}

.search-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--light-text-secondary);
    font-size: 1.25rem;
}

.dark-theme .search-icon {
    color: var(--dark-text-secondary);
}

.blue-theme .search-icon {
    color: var(--blue-text-secondary);
}

.search-input {
    width: 100%;
    padding: 20px 60px 20px 56px;
    font-size: 1.125rem;
    border: 2px solid var(--light-border);
    border-radius: var(--radius-xl);
    background: var(--light-card);
    color: var(--light-text);
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.dark-theme .search-input {
    background: var(--dark-card);
    border-color: var(--dark-border);
    color: var(--dark-text);
}

.blue-theme .search-input {
    background: var(--blue-card);
    border-color: var(--blue-border);
    color: var(--blue-text);
}

.clear-btn {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--light-text-secondary);
    cursor: pointer;
    padding: 8px;
    font-size: 1rem;
    transition: var(--transition);
    display: none;
}

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

.search-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.type-selector {
    display: flex;
    gap: 8px;
    background: var(--light-card);
    padding: 4px;
    border-radius: var(--radius);
    border: 1px solid var(--light-border);
}

.dark-theme .type-selector {
    background: var(--dark-card);
    border-color: var(--dark-border);
}

.blue-theme .type-selector {
    background: var(--blue-card);
    border-color: var(--blue-border);
}

.type-btn {
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    background: transparent;
    color: var(--light-text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

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

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

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

.blue-theme .type-btn:hover {
    background: var(--blue-hover);
}

.search-btn {
    padding: 14px 32px;
    border-radius: var(--radius);
    border: none;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow);
}

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

.quick-search {
    margin-bottom: 32px;
}

.quick-search-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--light-text-secondary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.dark-theme .quick-search-title {
    color: var(--dark-text-secondary);
}

.blue-theme .quick-search-title {
    color: var(--blue-text-secondary);
}

.quick-search-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}

.quick-search-item {
    padding: 16px;
    border-radius: var(--radius);
    border: 1px solid var(--light-border);
    background: var(--light-card);
    color: var(--light-text);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
    text-align: left;
}

.quick-search-item:hover {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.dark-theme .quick-search-item {
    border-color: var(--dark-border);
    background: var(--dark-card);
    color: var(--dark-text);
}

.blue-theme .quick-search-item {
    border-color: var(--blue-border);
    background: var(--blue-card);
    color: var(--blue-text);
}

.privacy-badge {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(37, 99, 235, 0.1));
    border-radius: var(--radius);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.privacy-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.privacy-text {
    flex: 1;
}

.privacy-text strong {
    display: block;
    font-size: 1.125rem;
    margin-bottom: 4px;
    color: var(--primary);
}

.privacy-text span {
    font-size: 0.875rem;
    color: var(--light-text-secondary);
}

.dark-theme .privacy-text span {
    color: var(--dark-text-secondary);
}

.blue-theme .privacy-text span {
    color: var(--blue-text-secondary);
}

.stats-section {
    margin-bottom: 60px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.stat-card {
    padding: 24px;
    border-radius: var(--radius);
    background: var(--light-card);
    border: 1px solid var(--light-border);
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.dark-theme .stat-card {
    background: var(--dark-card);
    border-color: var(--dark-border);
}

.blue-theme .stat-card {
    background: var(--blue-card);
    border-color: var(--blue-border);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--light-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dark-theme .stat-label {
    color: var(--dark-text-secondary);
}

.blue-theme .stat-label {
    color: var(--blue-text-secondary);
}

.features-section {
    margin-bottom: 40px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px 24px;
    border-radius: var(--radius);
    background: var(--light-card);
    border: 1px solid var(--light-border);
    text-align: center;
    transition: var(--transition);
}

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

.dark-theme .feature-card {
    background: var(--dark-card);
    border-color: var(--dark-border);
}

.blue-theme .feature-card {
    background: var(--blue-card);
    border-color: var(--blue-border);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--light-text);
}

.dark-theme .feature-card h3 {
    color: var(--dark-text);
}

.blue-theme .feature-card h3 {
    color: var(--blue-text);
}

.feature-card p {
    font-size: 0.9375rem;
    color: var(--light-text-secondary);
    line-height: 1.6;
}

.dark-theme .feature-card p {
    color: var(--dark-text-secondary);
}

.blue-theme .feature-card p {
    color: var(--blue-text-secondary);
}

.sidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 380px;
    height: 100vh;
    background: var(--light-card);
    z-index: 1000;
    transition: right 0.3s ease;
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

.sidebar.active {
    right: 0;
}

.dark-theme .sidebar {
    background: var(--dark-card);
}

.blue-theme .sidebar {
    background: var(--blue-card);
}

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

.dark-theme .sidebar-header {
    border-bottom-color: var(--dark-border);
}

.blue-theme .sidebar-header {
    border-bottom-color: var(--blue-border);
}

.sidebar-header h2 {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--light-text);
}

.dark-theme .sidebar-header h2 {
    color: var(--dark-text);
}

.blue-theme .sidebar-header h2 {
    color: var(--blue-text);
}

.sidebar-close {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--light-border);
    background: var(--light-bg);
    color: var(--light-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: var(--transition);
}

.sidebar-close:hover {
    background: var(--light-hover);
}

.dark-theme .sidebar-close {
    border-color: var(--dark-border);
    background: var(--dark-bg);
    color: var(--dark-text);
}

.dark-theme .sidebar-close:hover {
    background: var(--dark-hover);
}

.blue-theme .sidebar-close {
    border-color: var(--blue-border);
    background: var(--blue-bg);
    color: var(--blue-text);
}

.blue-theme .sidebar-close:hover {
    background: var(--blue-hover);
}

.sidebar-content {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
}

.history-actions {
    margin-bottom: 24px;
}

.action-btn {
    width: 100%;
    padding: 14px;
    border-radius: var(--radius);
    border: 1px solid var(--light-border);
    background: var(--light-bg);
    color: var(--light-text);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 12px;
}

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

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

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

.dark-theme .action-btn {
    border-color: var(--dark-border);
    background: var(--dark-bg);
    color: var(--dark-text);
}

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

.blue-theme .action-btn {
    border-color: var(--blue-border);
    background: var(--blue-bg);
    color: var(--blue-text);
}

.blue-theme .action-btn:hover {
    background: var(--blue-hover);
}

.history-list {
    height: 100%;
}

.empty-history {
    text-align: center;
    padding: 60px 20px;
    color: var(--light-text-secondary);
}

.empty-history i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-history h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--light-text);
}

.empty-history p {
    font-size: 0.9375rem;
    color: var(--light-text-secondary);
}

.dark-theme .empty-history {
    color: var(--dark-text-secondary);
}

.dark-theme .empty-history h3 {
    color: var(--dark-text);
}

.blue-theme .empty-history {
    color: var(--blue-text-secondary);
}

.blue-theme .empty-history h3 {
    color: var(--blue-text);
}

.history-item {
    padding: 16px;
    border-radius: var(--radius);
    background: var(--light-bg);
    border: 1px solid var(--light-border);
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.history-item:hover {
    background: var(--light-hover);
    transform: translateX(4px);
}

.dark-theme .history-item {
    background: var(--dark-bg);
    border-color: var(--dark-border);
}

.dark-theme .history-item:hover {
    background: var(--dark-hover);
}

.blue-theme .history-item {
    background: var(--blue-bg);
    border-color: var(--blue-border);
}

.blue-theme .history-item:hover {
    background: var(--blue-hover);
}

.history-content {
    flex: 1;
}

.history-query {
    font-weight: 500;
    color: var(--light-text);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.history-query i {
    color: var(--primary);
    font-size: 0.875rem;
}

.history-time {
    font-size: 0.75rem;
    color: var(--light-text-secondary);
}

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

.history-action-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--light-border);
    background: var(--light-bg);
    color: var(--light-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    transition: var(--transition);
}

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

.settings-group {
    margin-bottom: 32px;
}

.settings-group h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--light-text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.dark-theme .settings-group h3 {
    color: var(--dark-text);
}

.blue-theme .settings-group h3 {
    color: var(--blue-text);
}

.settings-item {
    margin-bottom: 20px;
}

.settings-item label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--light-text-secondary);
    margin-bottom: 8px;
}

.dark-theme .settings-item label {
    color: var(--dark-text-secondary);
}

.blue-theme .settings-item label {
    color: var(--blue-text-secondary);
}

.theme-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.theme-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px;
    border: 2px solid var(--light-border);
    border-radius: var(--radius);
    background: var(--light-bg);
    cursor: pointer;
    transition: var(--transition);
}

.theme-option:hover {
    border-color: var(--primary);
}

.theme-option.active {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.1);
}

.theme-preview {
    width: 50px;
    height: 35px;
    border-radius: 6px;
    border: 1px solid var(--light-border);
}

.theme-preview.light {
    background: linear-gradient(135deg, #f9fafb 50%, #ffffff 50%);
}

.theme-preview.dark {
    background: linear-gradient(135deg, #374151 50%, #4b5563 50%);
}

.theme-preview.blue {
    background: linear-gradient(135deg, #0c4a6e 50%, #075985 50%);
}

.font-control {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.font-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--light-border);
    background: var(--light-bg);
    color: var(--light-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    transition: var(--transition);
}

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

.font-size {
    min-width: 80px;
    text-align: center;
    font-weight: 500;
    color: var(--light-text);
}

.toggle-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.toggle-label {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--light-text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--light-border);
    transition: .3s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
}

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

input:checked + .slider:before {
    transform: translateX(24px);
}

.privacy-content {
    padding: 10px;
}

.privacy-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--light-text);
}

.policy-date {
    font-size: 0.875rem;
    color: var(--light-text-secondary);
    margin-bottom: 24px;
}

.policy-section {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--light-border);
}

.policy-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.policy-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--light-text);
}

.policy-section p {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--light-text-secondary);
}

.policy-notice {
    margin-top: 32px;
    padding: 20px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius);
    border: 1px solid var(--primary);
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.policy-notice i {
    color: var(--primary);
    font-size: 1.5rem;
    margin-top: 2px;
}

.policy-notice p {
    font-size: 0.9375rem;
    color: var(--light-text);
    font-weight: 500;
    margin: 0;
    line-height: 1.5;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

.footer {
    margin-top: 60px;
    padding: 40px 0;
    border-top: 1px solid var(--light-border);
}

.dark-theme .footer {
    border-top-color: var(--dark-border);
}

.blue-theme .footer {
    border-top-color: var(--blue-border);
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.footer-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-tagline {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--light-text-secondary);
    padding-left: 16px;
    border-left: 1px solid var(--light-border);
}

.dark-theme .footer-tagline {
    color: var(--dark-text-secondary);
    border-left-color: var(--dark-border);
}

.blue-theme .footer-tagline {
    color: var(--blue-text-secondary);
    border-left-color: var(--blue-border);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-link {
    background: none;
    border: none;
    color: var(--light-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    padding: 8px 0;
}

.footer-link:hover {
    color: var(--primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--light-border);
    flex-wrap: wrap;
    gap: 16px;
}

.dark-theme .footer-bottom {
    border-top-color: var(--dark-border);
}

.blue-theme .footer-bottom {
    border-top-color: var(--blue-border);
}

.footer-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--light-text-secondary);
}

.footer-info i {
    color: var(--primary);
}

.footer-copyright {
    font-size: 0.75rem;
    color: var(--light-text-secondary);
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .search-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .type-selector {
        justify-content: center;
    }
    
    .search-btn {
        width: 100%;
        justify-content: center;
    }
    
    .sidebar {
        width: 100%;
        right: -100%;
    }
    
    .theme-selector {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-brand {
        flex-direction: column;
        gap: 8px;
    }
    
    .footer-tagline {
        border-left: none;
        border-top: 1px solid var(--light-border);
        padding-left: 0;
        padding-top: 8px;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .search-input {
        padding: 16px 48px 16px 52px;
        font-size: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-search-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-content {
        flex-direction: column;
        gap: 16px;
    }
    
    .logo {
        font-size: 1.5rem;
    }
}