:root {
    --primary-dark: #0f172a;
    --secondary-dark: #1e293b;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, .1);
    --accent-gold: #ffd700;
    --card-bg: rgba(30, 41, 59, 0.8);
    --hover-bg: rgba(59, 130, 246, 0.1);

    /* Air Quality Index colors */
    --aqi-good: #22c55e;
    --aqi-fair: #84cc16;
    --aqi-moderate: #f59e0b;
    --aqi-poor: #f97316;
    --aqi-very-poor: #ef4444;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--primary-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.dashboard-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    background: var(--secondary-dark);
    padding: 1.5rem;
    border-right: 1px solid rgba(255, 255, 255, .1);
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: sticky;
    top: 0;
    overflow-y: auto;
    z-index: 40;
}

.logo {
    display: flex;
    align-items: center;
    gap: .75rem;
    margin-bottom: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo i {
    font-size: 1.5rem;
    color: var(--accent-blue);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    position: relative;
    margin: 0;
}

.logo h1::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, var(--accent-blue), var(--accent-purple));
    border-radius: 2px;
    transition: all 0.3s ease;
}

.logo:hover h1::after {
    height: 3px;
    background: linear-gradient(to right, var(--accent-purple), var(--accent-blue));
}

/* Search Container */
.search-container {
    margin-bottom: 1.5rem;
}

.search-container .input-group {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.search-container .input-group:focus-within {
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
    transform: translateY(-2px);
}

.search-input,
.search-container .input-group-text {
    background-color: transparent;
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.search-input:focus {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 0.25rem rgba(59, 130, 246, 0.25);
    color: var(--text-primary);
}

.search-btn {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
    transition: all 0.3s ease;
}

.search-btn:hover {
    background-color: var(--accent-purple);
    border-color: var(--accent-purple);
    transform: translateY(-2px);
}

.search-options {
    padding-left: 0.5rem;
}

.search-options .form-check-label {
    color: var(--text-secondary);
}

.search-options .form-check-input:checked {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
}

/* Recent Searches */
.recent-searches {
    margin-bottom: 2rem;
}

.recent-searches h2 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.recent-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Weather Grid */
.weather-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
}

/* Loading Container */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    width: 100%;
    padding: 2rem;
    color: var(--text-secondary);
}

.loading-text {
    margin-top: 1rem;
    font-size: 1.1rem;
}

/* Error Message */
.error-message {
    background-color: rgba(239, 68, 68, 0.1) !important;
    border: 1px solid rgba(239, 68, 68, 0.2) !important;
    color: var(--text-primary) !important;
}

/* Weather Card */
.weather-card {
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.weather-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(to right, var(--accent-blue), var(--accent-purple));
    z-index: 1;
    transition: height 0.3s ease;
}

.weather-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.weather-card:hover::before {
    height: 6px;
}

/* Weather Card Buttons */
.card-buttons {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.card-btn {
    flex: 1;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 0.375rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.forecast-btn {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent-blue);
}

.forecast-btn:hover {
    background-color: var(--accent-blue);
    color: white;
}

.map-btn {
    background-color: rgba(139, 92, 246, 0.1);
    color: var(--accent-purple);
}

.map-btn:hover {
    background-color: var(--accent-purple);
    color: white;
}

/* Landmark image */
.landmark-container {
    position: relative;
    width: 100%;
    height: 180px;
    overflow: hidden;
    background: var(--primary-dark);
}

.landmark-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.weather-card:hover .landmark-image {
    transform: scale(1.05);
}

.landmark-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    font-size: 0.9rem;
}

/* Capital city badge */
.capital-badge {
    background: var(--accent-gold);
    color: var(--primary-dark);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
    margin-left: 0.5rem;
}

/* Forecast Modal */
.modal-content {
    background: var(--secondary-dark);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.modal-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-header .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* Forecast Tabs */
.nav-tabs {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-tabs .nav-link {
    color: var(--text-secondary);
    border: none;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    padding: 0.75rem 1.25rem;
    transition: all 0.3s ease;
}

.nav-tabs .nav-link:hover {
    color: var(--text-primary);
    border-bottom-color: rgba(255, 255, 255, 0.3);
}

.nav-tabs .nav-link.active {
    color: var(--accent-blue);
    background-color: transparent;
    border-bottom: 2px solid var(--accent-blue);
}

.chart-container {
    position: relative;
    height: 250px;
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

/* Toast Notifications */
.toast {
    background-color: var(--secondary-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.toast-header {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.toast-body {
    color: var(--text-primary);
}

/* Map container */
#mapContainer {
    height: 500px;
    width: 100%;
    border-radius: 0 0 0.375rem 0.375rem;
    overflow: hidden;
}

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

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

.animate-fadeInUp {
    animation: fadeInUp 0.5s ease-out forwards;
}

/* Media Queries */
@media (max-width: 992px) {
    .dashboard-container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        left: -300px;
        height: 100%;
        width: 300px;
        transition: transform 0.3s ease;
    }

    .sidebar.open {
        transform: translateX(300px);
    }

    .weather-grid {
        padding: 1rem;
        padding-top: 5rem;
        /* Make room for the sidebar toggle */
    }

    .daily-forecast {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .weather-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .weather-grid {
        padding: 0.75rem;
        padding-top: 5rem;
    }

    .daily-forecast {
        grid-template-columns: 1fr;
    }

    .card-buttons {
        flex-direction: column;
    }
}