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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

#map {
    width: 100vw;
    height: 100vh;
    cursor: crosshair;
}

/* Pollu Info Box */
.pollu-info-box {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 1000;
    width: 350px;
    padding: 12px 15px;
    background: white;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.pollu-heading {
    margin: 0 0 4px 0;
    font-size: 18px;
    font-weight: 700;
    color: #333;
}

.pollu-description {
    margin: 0 0 10px 0;
    font-size: 11px;
    color: #666;
    font-weight: 500;
}

.github-links {
    display: flex;
    gap: 10px;
}

.github-links a {
    font-size: 11px;
    color: #0066cc;
    text-decoration: none;
    font-weight: 500;
}

.github-links a:hover {
    text-decoration: underline;
    color: #0052a3;
}

/* Search Container */
.search-container {
    position: absolute;
    top: 130px;
    left: 20px;
    z-index: 1000;
    width: 300px;
}

.search-input {
    width: 100%;
    padding: 12px 15px;
    font-size: 14px;
    border: none;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    outline: none;
    background: white;
}

.search-input:focus {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.search-results {
    list-style: none;
    margin-top: 5px;
    max-height: 300px;
    overflow-y: auto;
    background: white;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.search-results li {
    padding: 10px 15px;
    border-bottom: 1px solid #eee;
    cursor: pointer;
    font-size: 13px;
    color: #333;
}

.search-results li:last-child {
    border-bottom: none;
}

.search-results li:hover {
    background-color: #f5f5f5;
}

/* AQI Info Box */
.pm25-info {
    position: absolute;
    bottom: 20px;
    left: 20px;
    z-index: 1000;
    width: 380px;
    padding: 20px;
    background: white;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.pm25-heading {
    margin: 0 0 8px 0;
    font-size: 22px;
    font-weight: 700;
    color: #d32f2f;
}

.pm25-caption {
    margin: 0 0 16px 0;
    font-size: 15px;
    color: #f44336;
    font-weight: 500;
}

.pm25-scale {
    margin: 12px 0 0 0;
}

.scale-bar {
    position: relative;
    display: flex;
    height: 24px;
    border-radius: 3px;
    overflow: visible;
    margin-bottom: 6px;
    border: 1px solid #ddd;
    width: 100%;
}

.scale-band {
    height: 100%;
    flex: 1;
    min-width: 0;
}

.scale-band.level-good {
    background-color: #2ecc71;
}

.scale-band.level-satisfactory {
    background-color: #a9d82f;
}

.scale-band.level-moderate {
    background-color: #ffd700;
}

.scale-band.level-poor {
    background-color: #ff8c00;
}

.scale-band.level-very-poor {
    background-color: #e74c3c;
}

.scale-band.level-severe {
    background-color: #8b0000;
}

.scale-indicator {
    position: absolute;
    width: 3px;
    height: 32px;
    background-color: #000;
    top: -4px;
    border: 1px solid #000;
    z-index: 10;
    transform: translateX(-50%);
}

.scale-labels {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: #666;
    padding: 0;
    margin: 0;
}

.pm25-updated {
    margin: 10px 0 0 0;
    font-size: 12px;
    color: #999;
    font-style: italic;
}

.pm25-footer {
    margin: 4px 0 0 0;
    font-size: 11px;
    color: #aaa;
    font-style: italic;
}

.pm25-tagline {
    margin: 10px 0 0 0;
    font-size: 13px;
    color: #666;
    font-style: italic;
    font-weight: 500;
}

/* Welcome Modal */
.welcome-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(3px);
    z-index: 1100;
}

.welcome-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1101;
    background: white;
    border-radius: 8px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    max-width: 400px;
    text-align: center;
}

.welcome-modal h2 {
    margin: 0 0 16px 0;
    font-size: 28px;
    font-weight: 700;
    color: #333;
}

.welcome-modal p {
    margin: 0 0 28px 0;
    font-size: 16px;
    color: #666;
    line-height: 1.5;
}

.random-location-btn {
    background-color: #0066cc;
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
    width: 100%;
}

.random-location-btn:hover {
    background-color: #0052a3;
}

.random-location-btn:active {
    background-color: #003d7a;
}