body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: radial-gradient(circle at top, #1a2a6c, #000000 60%);
    color: white;
    overflow-x: hidden;
}

/* Omniverse 3D background */
#bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* Main UI container */
.ui {
    position: relative;
    z-index: 10;
    max-width: 1000px;
    margin: 40px auto;
    padding: 25px;
    border-radius: 20px;
    backdrop-filter: blur(35px);
    background: rgba(0,0,0,0.55);
    box-shadow: 0 25px 70px rgba(0,0,0,0.9);
}

.app {
    text-align: center;
}

/* Glass cards with animation */
.card {
    background: linear-gradient(135deg, rgba(255,255,255,0.12), rgba(255,255,255,0.03));
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 20px;
    box-shadow: 0 18px 40px rgba(0,0,0,0.55);
    border: 1px solid rgba(255,255,255,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease, opacity 0.3s ease;
    opacity: 1;
}

.card--updating {
    opacity: 0.8;
    transform: translateY(2px);
}

/* Inputs & buttons */
input, button {
    padding: 10px;
    border-radius: 12px;
    border: none;
    margin: 5px 4px;
    font-size: 0.95rem;
}

input {
    min-width: 180px;
    outline: none;
}

/* Tactile buttons */
button {
    background: linear-gradient(135deg, rgba(0,255,204,0.25), rgba(0,153,255,0.25));
    color: white;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease;
}
button:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.5);
    background: linear-gradient(135deg, rgba(0,255,204,0.5), rgba(0,153,255,0.5));
}
button:active {
    transform: translateY(0);
    box-shadow: 0 3px 8px rgba(0,0,0,0.5);
}

/* Favorites */
.favorites-bar {
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.fav-btn {
    padding: 6px 12px;
    border-radius: 12px;
    border: none;
    background: rgba(255,255,255,0.15);
    color: white;
    cursor: pointer;
    font-size: 0.9rem;
    box-shadow: 0 3px 10px rgba(0,0,0,0.4);
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease;
}
.fav-btn:hover {
    background: rgba(0,255,204,0.35);
    transform: translateY(-1px);
    box-shadow: 0 5px 14px rgba(0,0,0,0.5);
}

/* Current temp with pulse */
.temp-main {
    font-size: 3rem;
    margin: 10px 0 0 0;
    transition: transform 0.2s ease;
}
.temp-main--pulse {
    transform: scale(1.05);
}

/* Forecast grid */
.forecast-grid {
    display: grid;
    grid-template-columns: repeat(5,1fr);
    gap: 10px;
}

.forecast-item {
    background: rgba(255,255,255,0.1);
    padding: 10px;
    border-radius: 10px;
    font-size: 0.9rem;
}

.forecast-item img {
    width: 50px;
    height: 50px;
}

/* Map */
#map {
    height: 300px;
    margin-top: 10px;
    border-radius: 15px;
}

/* Chart */
canvas {
    max-width: 100%;
    margin: 10px auto 0 auto;
}

/* AI Advice */
.ai-advice {
    color: #00ffcc;
    font-weight: 500;
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
}

.ai-summary {
    margin-top: 10px;
    font-size: 0.9rem;
    color: #cccccc;
}

.ai-mood {
    margin-top: 8px;
    font-size: 0.9rem;
    color: #ffdd88;
}

.ai-allergy {
    margin-top: 4px;
    font-size: 0.85rem;
    color: #ffb3b3;
}

/* AQI / UV / last updated */
#aqi {
    color: orange;
}
#uv,
#lastUpdated {
    font-size: 0.85rem;
    color: #dddddd;
    margin-top: 4px;
}

/* Error */
.error {
    color: #ff6b6b;
}

/* Alert banner */
.alert-banner {
    padding: 10px 15px;
    border-radius: 14px;
    margin-bottom: 15px;
    font-weight: 600;
    text-align: center;
    color: white;
}

/* Hourly strip */
.hourly-strip {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 5px;
}

.hourly-item {
    min-width: 80px;
    background: rgba(255,255,255,0.08);
    border-radius: 10px;
    padding: 8px;
    font-size: 0.8rem;
    text-align: center;
    border-top: 2px solid #00ffcc;
    box-shadow: 0 4px 10px rgba(0,0,0,0.4);
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease;
}
.hourly-item:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 14px rgba(0,0,0,0.5);
}

.hourly-item img {
    width: 35px;
    height: 35px;
}

/* Extra details */
.details-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    text-align: left;
    font-size: 0.9rem;
}

.detail-item {
    background: rgba(255,255,255,0.06);
    padding: 8px 10px;
    border-radius: 10px;
    border-left: 2px solid #00ffcc;
}

/* compare card */
.compare-inputs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.compare-inputs input {
    min-width: 150px;
}

.compare-result {
    margin-top: 10px;
    font-size: 0.9rem;
}

/* Rotating tips */
#rotatingTips {
    font-size: 0.9rem;
    color: #e0e0e0;
}

/* Responsive */
@media (max-width: 900px) {
    .ui {
        margin: 20px;
        padding: 15px;
    }
}

@media (max-width: 700px) {
    .forecast-grid {
        grid-template-columns: repeat(2,1fr);
    }
}

@media (max-width: 600px) {
    .details-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 450px) {
    .forecast-grid {
        grid-template-columns: 1fr;
    }
    .temp-main {
        font-size: 2.5rem;
    }
}

/* Extra mobile padding and headings */
@media (max-width: 400px) {
    .ui {
        margin: 10px;
        padding: 12px;
    }
    h1 {
        font-size: 1.4rem;
    }
    .card {
        padding: 14px;
    }
}