@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f7fa;
    --bg-tertiary: #e3e8ef;
    --text-primary: #1a202c;
    --text-secondary: #718096;
    --border-color: #e2e8f0;
    --primary-color: #3182ce;
    --primary-hover: #2c5aa0;
    --success-color: #38a169;
    --danger-color: #e53e3e;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3a3a3a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --border-color: #404040;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.5);
}

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

body.jbs-page {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

.jbs-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.jbs-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    margin-bottom: 40px;
    border-bottom: 2px solid var(--border-color);
}

.jbs-logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

.jbs-logo a {
    text-decoration: none;
    display: inline-block;
}

.jbs-logo-img {
    height: 50px;
    width: auto;
    display: block;
    transition: opacity 0.3s;
}

.jbs-logo a:hover .jbs-logo-img {
    opacity: 0.8;
}

.jbs-header-controls {
    display: flex;
    gap: 15px;
    align-items: center;
}

.jbs-btn-icon {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 20px;
    transition: all 0.3s;
}

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

[data-theme="light"] .jbs-icon-dark,
[data-theme="dark"] .jbs-icon-light {
    display: none;
}

.jbs-select {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
}

.jbs-main {
    min-height: 60vh;
}

.jbs-hero {
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-primary);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 40px;
}

.jbs-hero-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.jbs-city-name {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.jbs-clock {
    margin: 40px 0;
}

.jbs-time {
    font-size: 72px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    letter-spacing: 2px;
    color: var(--primary-color);
}

.jbs-separator {
    opacity: 0.7;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0.3; }
}

.jbs-clock-info {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.jbs-timezone,
.jbs-date {
    font-size: 16px;
    color: var(--text-secondary);
}

.jbs-popular-cities-section {
    margin: 60px 0;
}

.jbs-popular-cities-section h3 {
    text-align: center;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-size: 24px;
    font-weight: 600;
}

.jbs-section-subtitle {
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-secondary);
    font-size: 14px;
    font-style: italic;
}

.jbs-search-section {
    max-width: 600px;
    margin: 40px auto;
}

.jbs-search-section h3 {
    text-align: center;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.jbs-search-box {
    position: relative;
}

.jbs-search-input {
    width: 100%;
    padding: 15px 20px;
    font-size: 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all 0.3s;
}

.jbs-search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.1);
}

.jbs-search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 12px 12px;
    max-height: 300px;
    overflow-y: auto;
    display: none;
    z-index: 100;
    box-shadow: var(--shadow-lg);
}

.jbs-search-results.show {
    display: block;
}

.jbs-search-result-item {
    padding: 12px 20px;
    cursor: pointer;
    transition: background 0.2s;
    border-bottom: 1px solid var(--border-color);
}

.jbs-search-result-item:hover {
    background: var(--bg-secondary);
}

.jbs-search-result-item:last-child {
    border-bottom: none;
}

.jbs-actions {
    text-align: center;
    margin: 40px 0;
}

.jbs-btn {
    display: inline-block;
    padding: 15px 40px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
}

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

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

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

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

/* Ad Spaces */
.jbs-ad {
    margin: 30px 0;
    text-align: center;
    overflow: hidden;
}

.jbs-ad-header {
    margin-top: 20px;
    margin-bottom: 30px;
}

.jbs-ad-content {
    margin: 40px 0;
}

.jbs-ad-footer {
    margin-top: 40px;
    margin-bottom: 20px;
}

.jbs-ad-sidebar {
    margin: 20px 0;
}

/* Responsive ads */
@media (max-width: 768px) {
    .jbs-ad {
        margin: 20px 0;
    }
    
    .jbs-ad-header,
    .jbs-ad-content,
    .jbs-ad-footer {
        margin: 20px 0;
    }
}

.jbs-footer {
    text-align: center;
    padding: 40px 0 20px;
    margin-top: 60px;
    border-top: 2px solid var(--border-color);
    color: var(--text-secondary);
}

.jbs-breadcrumb {
    padding: 20px 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.jbs-breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.jbs-city-hero {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 60px 40px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 40px;
}

.jbs-city-header {
    text-align: center;
    margin-bottom: 40px;
}

.jbs-city-header h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
}

.jbs-city-country {
    font-size: 20px;
    color: var(--text-secondary);
}

.jbs-city-clock {
    text-align: center;
    margin: 40px 0;
}

.jbs-city-info {
    margin-top: 40px;
}

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

.jbs-info-item {
    text-align: center;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 12px;
}

.jbs-info-label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.jbs-info-value {
    display: block;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.jbs-weather-card {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
}

.jbs-weather-card h2,
.jbs-weather-card h3 {
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.jbs-weather-content {
    display: flex;
    align-items: center;
    gap: 30px;
}

.jbs-weather-icon img {
    width: 100px;
    height: 100px;
}

.jbs-weather-temp {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
}

.jbs-weather-desc {
    font-size: 18px;
    color: var(--text-secondary);
    text-transform: capitalize;
}

.jbs-weather-details {
    display: flex;
    gap: 20px;
    margin-top: 10px;
    font-size: 14px;
    color: var(--text-secondary);
}

.jbs-map-card {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
}

.jbs-map-card h2,
.jbs-map-card h3 {
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.jbs-map-container {
    position: relative;
}

.jbs-map-container iframe {
    width: 100%;
    border-radius: 8px;
}

.jbs-map-container small {
    display: block;
    margin-top: 10px;
    text-align: center;
    color: var(--text-secondary);
}

.jbs-map-container a {
    color: var(--primary-color);
    text-decoration: none;
}

.jbs-map-container a:hover {
    text-decoration: underline;
}

.jbs-article-card {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
}

.jbs-article-card h2,
.jbs-article-card h3 {
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.jbs-article-content {
    line-height: 1.8;
    color: var(--text-primary);
}

.jbs-article-content p {
    margin-bottom: 15px;
}

.jbs-article-note {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-style: italic;
}

.jbs-related-cities-card {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 40px;
}

.jbs-related-cities-card h2 {
    margin-bottom: 25px;
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

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

.jbs-city-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

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

.jbs-city-card-header {
    margin-bottom: 10px;
}

.jbs-city-card-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.jbs-city-card-country {
    font-size: 13px;
    color: var(--text-secondary);
    opacity: 0.8;
}

.jbs-city-card-clock {
    margin: 10px 0;
}

.jbs-city-time {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    font-variant-numeric: tabular-nums;
}

.jbs-city-card-timezone {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 5px;
}

.jbs-compare-controls {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.jbs-compare-controls .jbs-search-box {
    flex: 1;
    min-width: 300px;
}

.jbs-compare-table-wrapper {
    overflow-x: auto;
}

.jbs-compare-table {
    width: 100%;
    background: var(--bg-primary);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.jbs-compare-table th,
.jbs-compare-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.jbs-compare-table th {
    background: var(--bg-secondary);
    font-weight: 600;
}

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

.jbs-empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
    font-size: 18px;
}

/* ===========================
   RESPONSIVE STYLES
   =========================== */

/* Tablet (768px and below) */
@media (max-width: 768px) {
    .jbs-container {
        padding: 15px;
    }
    
    .jbs-header {
        padding: 15px 0;
        margin-bottom: 20px;
        flex-wrap: wrap;
    }
    
    .jbs-logo-img {
        height: 40px;
    }
    
    .jbs-header-controls {
        gap: 10px;
    }
    
    .jbs-hero {
        padding: 30px 20px;
        margin-bottom: 30px;
    }
    
    .jbs-hero-title {
        font-size: 22px;
        margin-bottom: 8px;
    }
    
    .jbs-city-name {
        font-size: 16px;
        margin-bottom: 20px;
    }
    
    .jbs-clock {
        margin: 20px 0;
        overflow: hidden; /* Prevent overflow */
    }
    
    .jbs-time {
        font-size: 40px;
        letter-spacing: 1px;
        line-height: 1.2;
    }
    
    .jbs-clock-info {
        flex-direction: column;
        gap: 10px;
        margin-top: 15px;
    }
    
    .jbs-timezone,
    .jbs-date {
        font-size: 14px;
    }
    
    .jbs-search-section {
        margin: 30px auto;
        padding: 0 10px;
    }
    
    .jbs-search-section h3 {
        font-size: 18px;
        margin-bottom: 15px;
    }
    
    .jbs-search-input {
        padding: 12px 15px;
        font-size: 14px;
    }
    
    .jbs-search-results {
        max-height: 250px;
    }
    
    .jbs-actions {
        margin: 30px 0;
    }
    
    .jbs-btn {
        padding: 12px 30px;
        font-size: 14px;
        width: 100%;
        display: block;
        margin-bottom: 10px;
    }
    
    .jbs-city-hero {
        padding: 40px 20px;
    }
    
    .jbs-city-header {
        margin-bottom: 30px;
    }
    
    .jbs-city-header h1 {
        font-size: 36px;
        word-wrap: break-word;
        margin-bottom: 10px;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }
    
    .jbs-city-country {
        font-size: 20px;
        font-weight: 600;
        opacity: 0.9;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
    }
    
    .jbs-weather-content {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .jbs-weather-icon img {
        width: 80px;
        height: 80px;
    }
    
    .jbs-weather-temp {
        font-size: 36px;
    }
    
    .jbs-weather-details {
        flex-direction: column;
        gap: 8px;
        align-items: center;
    }
    
    .jbs-info-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .jbs-compare-controls {
        flex-direction: column;
        gap: 10px;
    }
    
    .jbs-compare-controls .jbs-search-box {
        min-width: 100%;
    }
    
    .jbs-weather-card,
    .jbs-map-card,
    .jbs-article-card,
    .jbs-related-cities-card {
        padding: 20px 15px;
        margin-bottom: 20px;
    }
    
    .jbs-weather-card h2,
    .jbs-weather-card h3,
    .jbs-map-card h2,
    .jbs-map-card h3,
    .jbs-article-card h2,
    .jbs-article-card h3,
    .jbs-related-cities-card h2 {
        font-size: 20px;
        margin-bottom: 15px;
    }
    
    .jbs-cities-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .jbs-city-card {
        padding: 12px;
    }
    
    .jbs-city-card-name {
        font-size: 15px;
    }
    
    .jbs-city-time {
        font-size: 18px;
    }
    
    .jbs-city-card-timezone {
        font-size: 11px;
    }
    
    /* Compare table responsive */
    .jbs-compare-table th,
    .jbs-compare-table td {
        padding: 10px 8px;
        font-size: 14px;
    }
    
    /* Footer */
    .jbs-footer {
        padding: 30px 0 15px;
        margin-top: 40px;
        font-size: 14px;
    }
}

/* Mobile (480px and below) */
@media (max-width: 480px) {
    .jbs-container {
        padding: 10px;
    }
    
    .jbs-header {
        padding: 10px 0;
    }
    
    .jbs-logo-img {
        height: 35px;
    }
    
    .jbs-hero {
        padding: 25px 15px;
        border-radius: 12px;
    }
    
    .jbs-hero-title {
        font-size: 18px;
        line-height: 1.3;
    }
    
    .jbs-city-name {
        font-size: 14px;
        margin-bottom: 15px;
    }
    
    .jbs-clock {
        margin: 15px 0;
    }
    
    .jbs-time {
        font-size: 32px;
        letter-spacing: 0.5px;
        word-break: keep-all;
    }
    
    .jbs-clock-info {
        gap: 8px;
    }
    
    .jbs-timezone,
    .jbs-date {
        font-size: 13px;
    }
    
    .jbs-search-section {
        padding: 0 5px;
    }
    
    .jbs-search-section h3 {
        font-size: 16px;
    }
    
    .jbs-search-input {
        padding: 10px 12px;
        font-size: 14px;
        border-radius: 8px;
    }
    
    .jbs-search-results {
        max-height: 200px;
        border-radius: 0 0 8px 8px;
    }
    
    .jbs-search-result-item {
        padding: 10px 12px;
        font-size: 14px;
    }
    
    .jbs-btn {
        padding: 10px 20px;
        font-size: 14px;
        border-radius: 8px;
    }
    
    .jbs-city-hero {
        padding: 30px 15px;
        border-radius: 12px;
    }
    
    .jbs-city-header {
        margin-bottom: 25px;
    }
    
    .jbs-city-header h1 {
        font-size: 32px;
        line-height: 1.2;
        margin-bottom: 8px;
        font-weight: 700;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }
    
    .jbs-city-country {
        font-size: 18px;
        font-weight: 600;
        opacity: 0.9;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
    }
    
    .jbs-weather-icon img {
        width: 70px;
        height: 70px;
    }
    
    .jbs-weather-temp {
        font-size: 32px;
    }
    
    .jbs-weather-desc {
        font-size: 16px;
    }
    
    .jbs-info-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .jbs-info-item {
        padding: 15px;
    }
    
    .jbs-info-value {
        font-size: 18px;
    }
    
    .jbs-weather-card,
    .jbs-map-card,
    .jbs-article-card,
    .jbs-related-cities-card {
        padding: 15px 12px;
        border-radius: 12px;
    }
    
    .jbs-weather-card h2,
    .jbs-weather-card h3,
    .jbs-map-card h2,
    .jbs-map-card h3,
    .jbs-article-card h2,
    .jbs-article-card h3,
    .jbs-related-cities-card h2 {
        font-size: 18px;
    }
    
    .jbs-article-content {
        font-size: 14px;
        line-height: 1.7;
    }
    
    .jbs-cities-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .jbs-city-card {
        padding: 15px;
    }
    
    .jbs-city-card-name {
        font-size: 16px;
    }
    
    .jbs-city-time {
        font-size: 20px;
    }
    
    /* Compare table */
    .jbs-compare-table {
        font-size: 13px;
    }
    
    .jbs-compare-table th,
    .jbs-compare-table td {
        padding: 8px 6px;
        font-size: 13px;
    }
    
    /* Empty state */
    .jbs-empty-state {
        padding: 40px 15px;
        font-size: 16px;
    }
    
    /* Footer */
    .jbs-footer {
        padding: 25px 0 15px;
        margin-top: 30px;
        font-size: 13px;
    }
}

/* Extra Small Mobile (360px and below) */
@media (max-width: 360px) {
    .jbs-container {
        padding: 8px;
    }
    
    .jbs-hero,
    .jbs-city-hero {
        padding: 25px 12px;
    }
    
    .jbs-hero-title {
        font-size: 16px;
    }
    
    .jbs-time {
        font-size: 28px;
        letter-spacing: 0;
    }
    
    .jbs-city-header h1 {
        font-size: 28px;
        margin-bottom: 6px;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }
    
    .jbs-city-country {
        font-size: 16px;
        font-weight: 600;
        opacity: 0.95;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    }
    
    .jbs-cities-grid {
        gap: 8px;
    }
    
    .jbs-city-card {
        padding: 12px;
    }
    
    .jbs-city-card-name {
        font-size: 14px;
    }
    
    .jbs-city-time {
        font-size: 18px;
    }
    
    .jbs-weather-card,
    .jbs-map-card,
    .jbs-article-card,
    .jbs-related-cities-card {
        padding: 12px 10px;
    }
    
    .jbs-btn {
        padding: 10px 15px;
        font-size: 13px;
    }
}