:root {
    --primary: #4361ee;
    --secondary: #3a0ca3;
    --accent: #4cc9f0;
    --light: #f8f9fa;
    --dark: #212529;
    --success: #4bb543;
    --warning: #fca311;
    --danger: #ef233c;
    --card-bg: rgba(255, 255, 255, 0.9);
    --text-primary: #2b2d42;
    --text-secondary: #6c757d;
}

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

body {
    min-height: 100vh;
    background: linear-gradient(135deg, #4361ee, #3a0ca3);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.weather-app {
    width: 100%;
    max-width: 800px;
    background: var(--card-bg);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.app-header {
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    color: white;
}

.app-title {
    font-size: 1.5rem;
    font-weight: 600;
}

.app-actions {
    display: flex;
    gap: 10px;
}

.btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.btn i {
    font-size: 1.2rem;
}

.search-container {
    padding: 20px;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 15px 20px;
    border-radius: 50px;
    border: none;
    background: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    box-shadow: 0 4px 20px rgba(67, 97, 238, 0.3);
}

.search-btn {
    position: absolute;
    right: 25px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.weather-display {
    display: none;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

.current-weather {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
    width: 100%;
}

.location {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.date-time {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.current-weather-container {
    display: flex;
    justify-content: space-between;
    width: 100%;
    gap: 20px;
}

.weather-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
}

.weather-icon {
    width: 120px;
    height: 120px;
    margin: 10px 0;
}

.temperature {
    font-size: 4rem;
    font-weight: 300;
    display: flex;
    align-items: flex-start;
    margin-bottom: 5px;
}

.temperature span {
    font-size: 2rem;
    margin-top: 10px;
}

.weather-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    text-transform: capitalize;
    margin-bottom: 30px;
}

.weather-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    flex: 1;
}

.detail-card {
    background: rgba(255, 255, 255, 0.7);
    border-radius: 15px;
    padding: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.detail-icon {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.detail-value {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.detail-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.forecast-container {
    width: 100%;
    margin-top: 20px;
}

.forecast-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.forecast-items {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
}

.forecast-item {
    background: rgba(255, 255, 255, 0.7);
    border-radius: 12px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.forecast-day {
    font-weight: 500;
    margin-bottom: 5px;
}

.forecast-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.forecast-icon {
    width: 40px;
    height: 40px;
    margin: 5px 0;
}

.forecast-temp {
    font-weight: 600;
    margin-bottom: 3px;
}

.forecast-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 5px;
}

.unit-toggle {
    display: flex;
    justify-content: center;
    margin-top: 20px;
    gap: 10px;
}

.unit-btn {
    background: rgba(67, 97, 238, 0.1);
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 5px 15px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.loading {
    display: none;
    flex-direction: column;
    align-items: center;
    padding: 40px 20px;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(67, 97, 238, 0.2);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

.loading-text {
    color: var(--text-secondary);
}

.error-message {
    display: none;
    padding: 20px;
    text-align: center;
    color: var(--danger);
    background: rgba(239, 35, 60, 0.1);
    border-radius: 10px;
    margin: 20px;
}

.last-updated {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 10px;
    text-align: center;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .weather-app {
        max-width: 500px;
    }
    
    .current-weather-container {
        flex-direction: column;
    }
    
    .forecast-items {
        grid-template-columns: repeat(4, 1fr);
        overflow-x: auto;
        padding-bottom: 10px;
    }
    
    .forecast-item {
        min-width: 100px;
    }
}

@media (max-width: 480px) {
    .weather-app {
        border-radius: 15px;
    }
    
    .app-header {
        padding: 15px;
    }
    
    .temperature {
        font-size: 3rem;
    }
    
    .weather-details {
        grid-template-columns: 1fr;
    }
    
    .forecast-items {
        grid-template-columns: repeat(3, 1fr);
    }
}