* {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    box-sizing: border-box;
}

html {
    height: 100%;
    background: #1a1a1a;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow-x: hidden;
    color: #fff;
    padding-top: 80px;
}

.bg-container {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: #1a1a1a;
}

.bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.6s ease-in;
}

.bg-image.loaded {
    opacity: 1;
}

/*Header*/
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(6px);
    padding: 12px 20px;
    z-index: 10;
}

.app-title {
    font-size: 28px;
    font-weight: 600;
    color: #fff;
    letter-spacing: 1px;
}

.search-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.input-wrapper {
    position: relative;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    padding: 6px 30px 6px 12px;
}

.input-wrapper input {
    border: none;
    outline: none;
    font-size: 14px;
    background: transparent;
    width: 180px;
}

.clear-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    font-size: 18px;
    color: #666;
    cursor: pointer;
    display: none;
}

.input-wrapper.has-text .clear-btn {
    display: block;
}

.search-btn {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn img {
    width: 20px;
    height: 20px;
}

.welcome-message {
    text-align: center;
    color: #fff;
    padding: 120px 20px;
    max-width: 800px;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    margin-top: 10vh;
}

.welcome-message h2 {
    font-size: 32px;
    margin-bottom: 12px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.welcome-message p {
    font-size: 18px;
    line-height: 1.5;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

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

.error {
    display: none;
    background: rgba(255, 0, 0, 0.15);
    color: #ffdddd;
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    margin: 20px auto;
    width: 90%;
    max-width: 800px;
    backdrop-filter: blur(4px);
}

.cards-container {
    display: none;
    width: 90%;
    max-width: 700px;
    margin: 20px auto;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.main-card,
.humidity-card,
.wind-card,
.aqi-card {
    background: rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    color: #fff;
}

.main-card {
    flex: 1 1 320px;
    min-width: 280px;
    max-width: 380px;
    text-align: center;
    padding: 30px;
}

.weather { 
    text-align: center; 
}

.city { 
    font-size: 42px; 
    font-weight: 600; 
    margin: 0 0 20px 0; 
    opacity: 0.95; 
    letter-spacing: -0.5px; 
}

.weather-icon {
    width: 220px;
    margin: 30px auto;
}

.temp {
    font-size: 72px;
    font-weight: 500; 
    margin: 30px 0 0 0; 
    opacity: 0.9;
}

.info-cards {
    display: flex;
    flex-direction: column;
    flex: 1 1 280px;
    gap: 20px;
    min-width: 260px;
}

.humidity-card,
.wind-card,
.aqi-card {
    flex: 1;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.stat-content { 
    display: flex; 
    align-items: center; 
    gap: 15px; 
}

.stat-content img {
    width: 60px;
}

.stat-content p:first-child {
    font-size: 34px; 
    margin-bottom: 4px;
}

.stat-content p:last-child {
    font-size: 16px;
    opacity: 0.8;
}

/*Responsive*/
@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        text-align: center;
    }

    .search-container {
        justify-content: center;
    }

    .input-wrapper input {
        width: 150px;
    }

    .cards-container {
        flex-direction: column;
        align-items: center;
    }

    .main-card,
    .humidity-card,
    .wind-card,
    .aqi-card {
        width: 90%;
    }

    .weather-icon {
        width: 160px;
    }

    .temp {
        font-size: 48px;
    }
}

@media (max-width: 480px) {
    .app-title {
        font-size: 22px;
    }

    .input-wrapper input {
        width: 120px;
        font-size: 13px;
    }

    .weather-icon {
        width: 130px;
    }

    .temp {
        font-size: 42px;
    }
}