/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4361ee;
    --primary-dark: #3a0ca3;
    --primary-light: #4cc9f0;
    --secondary-color: #f72585;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-light: #e9ecef;
    --gray-dark: #6c757d;
    --success-color: #2ecc71;
    --error-color: #e74c3c;
    --warning-color: #f39c12;
    --card-bg: rgba(255, 255, 255, 0.95);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 20px;
    --border-radius-sm: 12px;
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--dark-color);
    min-height: 100vh;
    padding: 20px;
    line-height: 1.6;
    background-attachment: fixed;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    animation: fadeInDown 0.8s ease;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.logo i {
    font-size: 2.5rem;
    color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header h1 {
    font-size: 2.8rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--gray-dark);
    font-weight: 400;
}

/* Search Section */
.search-section {
    margin-bottom: 30px;
    animation: fadeIn 0.8s ease 0.2s both;
}

.search-container {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.search-box {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    position: relative;
}

.search-box input {
    flex: 1;
    padding: 18px 20px 18px 55px;
    border: 2px solid var(--gray-light);
    border-radius: var(--border-radius-sm);
    background: white;
    font-size: 1.1rem;
    color: var(--dark-color);
    transition: var(--transition);
    font-family: 'Poppins', sans-serif;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.search-box input::placeholder {
    color: var(--gray-dark);
    opacity: 0.7;
}

.search-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
    font-size: 1.2rem;
    z-index: 1;
}

.search-btn, .location-btn {
    padding: 16px 30px;
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
    font-family: 'Poppins', sans-serif;
}

.search-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    min-width: 140px;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
}

.search-btn:active {
    transform: translateY(0);
}

.location-btn {
    background: var(--gray-light);
    color: var(--dark-color);
    width: 60px;
}

.location-btn:hover {
    background: var(--primary-light);
    color: white;
    transform: translateY(-2px);
}

.unit-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 15px;
    border-top: 1px solid var(--gray-light);
}

.unit-label {
    font-weight: 500;
    color: var(--dark-color);
}

.toggle-switch {
    display: flex;
    background: var(--gray-light);
    border-radius: var(--border-radius-sm);
    padding: 4px;
    gap: 4px;
}

.unit-btn {
    padding: 10px 25px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--dark-color);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    min-width: 70px;
}

.unit-btn.active {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.error-message {
    background: rgba(231, 76, 60, 0.1);
    border-left: 4px solid var(--error-color);
    padding: 15px 20px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 15px;
    animation: slideIn 0.3s ease;
    margin-top: 10px;
}

.error-message i {
    color: var(--error-color);
    font-size: 1.2rem;
}

.hidden {
    display: none !important;
}

/* Weather Card */
.weather-section {
    animation: fadeIn 0.8s ease 0.4s both;
}

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

.weather-card:hover {
    box-shadow: var(--shadow-hover);
}

.weather-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--gray-light);
}

.weather-header h2 {
    font-size: 1.8rem;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.weather-header h2 i {
    color: var(--primary-color);
}

.weather-update-time {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-dark);
    font-size: 0.9rem;
}

.weather-update-time i {
    color: var(--primary-color);
}

.weather-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
    padding: 20px 0;
}

.weather-icon-container {
    flex: 1;
    text-align: center;
}

.weather-icon-container i {
    font-size: 8rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.weather-info {
    flex: 2;
    text-align: center;
}

.temperature {
    font-size: 5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.temp-unit {
    font-size: 2rem;
    margin-top: 10px;
    color: var(--primary-color);
}

.weather-description {
    font-size: 1.8rem;
    color: var(--gray-dark);
    text-transform: capitalize;
    font-weight: 500;
}

.weather-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: var(--gray-light);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.detail-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.detail-icon {
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.detail-icon i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.detail-label {
    font-size: 0.9rem;
    color: var(--gray-dark);
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

/* Forecast Section */
.forecast-section {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.forecast-section h3 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 15px;
}

.forecast-section h3 i {
    color: var(--primary-color);
}

.forecast-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
}

.forecast-day {
    background: white;
    border-radius: var(--border-radius-sm);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--gray-light);
}

.forecast-day:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-light);
}

.forecast-date {
    font-size: 1rem;
    color: var(--dark-color);
    margin-bottom: 15px;
    font-weight: 600;
    line-height: 1.4;
}

.forecast-icon {
    font-size: 3rem;
    margin: 15px 0;
    color: var(--primary-color);
}

.forecast-temp {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.forecast-desc {
    font-size: 0.9rem;
    color: var(--gray-dark);
    text-transform: capitalize;
}

.forecast-placeholder {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    color: var(--gray-dark);
}

.forecast-placeholder i {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
    color: var(--primary-color);
}

/* Footer */
.footer {
    margin-top: auto;
    padding-top: 40px;
    animation: fadeIn 0.8s ease 0.6s both;
}

.footer-content {
    text-align: center;
    padding: 25px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.footer p {
    color: var(--gray-dark);
    margin-bottom: 10px;
}

.footer .fa-heart {
    color: var(--secondary-color);
    margin: 0 5px;
}

.api-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--success-color);
}

.api-status i {
    animation: pulse 2s infinite;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.loading-content {
    text-align: center;
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.loading-spinner {
    width: 70px;
    height: 70px;
    border: 5px solid var(--gray-light);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

.loading-content p {
    color: var(--dark-color);
    font-size: 1.1rem;
    font-weight: 500;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Responsive Design */
@media (max-width: 992px) {
    .header h1 {
        font-size: 2.3rem;
    }
    
    .weather-main {
        flex-direction: column;
        text-align: center;
    }
    
    .weather-icon-container i {
        font-size: 6rem;
    }
    
    .temperature {
        font-size: 4rem;
    }
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .header {
        padding: 20px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .search-box input {
        padding: 15px 15px 15px 45px;
    }
    
    .search-btn, .location-btn {
        width: 100%;
        padding: 15px;
    }
    
    .search-btn {
        min-width: auto;
    }
    
    .unit-toggle {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
    
    .toggle-switch {
        width: 100%;
    }
    
    .unit-btn {
        flex: 1;
    }
    
    .weather-details {
        grid-template-columns: 1fr;
    }
    
    .forecast-container {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.7rem;
    }
    
    .logo {
        flex-direction: column;
        gap: 10px;
    }
    
    .temperature {
        font-size: 3rem;
    }
    
    .weather-icon-container i {
        font-size: 4rem;
    }
    
    .weather-description {
        font-size: 1.4rem;
    }
    
    .forecast-container {
        grid-template-columns: 1fr;
    }
    
    .forecast-day {
        display: flex;
        align-items: center;
        justify-content: space-between;
        text-align: left;
    }
    
    .forecast-icon {
        margin: 0;
        font-size: 2.5rem;
    }
    
    .forecast-temp {
        margin: 0;
    }
}