.theme-toggle-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    background: var(--theme-toggle-bg);
    border: 2px solid var(--theme-toggle-border);
    color: var(--theme-toggle-color);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.theme-toggle-btn:hover {
    transform: scale(1.1) rotate(15deg);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.theme-toggle-btn:active {
    transform: scale(0.95);
}

[data-bs-theme="dark"] {
    --theme-toggle-bg: #242838;
    --theme-toggle-border: #3b82f6;
    --theme-toggle-color: #fbbf24;
    --body-bg: #1a1d29;
    --card-bg: #242838;
    --modal-bg: #242838;
    --asteroid-card-bg: rgba(30, 58, 138, 0.1);
    --asteroid-card-border: rgba(59, 130, 246, 0.2);
    --info-value-color: #ffffff;
    --info-label-color: #6b7280;
    --info-row-color: #a8b2d1;
    --btn-close-color: #a8b2d1;
    --btn-close-hover-color: #ffffff;
    --btn-close-hover-bg: rgba(255, 255, 255, 0.1);
}

[data-bs-theme="light"] {
    --theme-toggle-bg: #ffffff;
    --theme-toggle-border: #3b82f6;
    --theme-toggle-color: #1f2937;
    --body-bg: #f3f4f6;
    --card-bg: #ffffff;
    --modal-bg: #ffffff;
    --asteroid-card-bg: rgba(59, 130, 246, 0.05);
    --asteroid-card-border: rgba(59, 130, 246, 0.3);
    --info-value-color: #1f2937;
    --info-label-color: #6b7280;
    --info-row-color: #4b5563;
    --btn-close-color: #6b7280;
    --btn-close-hover-color: #1f2937;
    --btn-close-hover-bg: rgba(0, 0, 0, 0.05);
}

body {
    background-color: var(--body-bg) !important;
    transition: background-color 0.3s ease;
}

.card {
    border-radius: 12px;
    transition: transform 0.2s, background-color 0.3s ease;
}

.card:hover {
    transform: translateY(-3px);
}

.stat-card {
    border-left: 4px solid;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

.bg-body-tertiary {
    background-color: var(--card-bg) !important;
    transition: background-color 0.3s ease;
}

.chart-container {
    min-height: 300px;
}

.earth-3d-container {
    width: 100%;
    height: 460px;
    border-radius: 12px;
    overflow: hidden;
    background: radial-gradient(circle at top, rgba(59, 130, 246, 0.18), rgba(0, 0, 0, 0.08));
    border: 1px solid rgba(59, 130, 246, 0.25);
}

.earth-3d-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    color: var(--info-row-color);
    font-size: 0.9rem;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.legend-hazard {
    background-color: #ff3b30;
}

.legend-safe {
    background-color: #22c55e;
}

.legend-scale {
    opacity: 0.8;
}

.search-banner-card {
    background-image: url('../assets/ssd_banner.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    overflow: hidden;
}

.search-banner-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.85) 0%, rgba(59, 130, 246, 0.75) 100%);
    z-index: 1;
}

.search-banner-card .card-body {
    position: relative;
    z-index: 2;
}

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background: var(--modal-bg);
    border-radius: 16px;
    width: 90%;
    max-width: 1200px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(59, 130, 246, 0.3);
    transform: scale(0.9) translateY(-20px);
    animation: modalSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    transition: background 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: scale(0.9) translateY(-20px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.modal-overlay.closing .modal-content {
    animation: modalSlideOut 0.3s ease forwards;
}

@keyframes modalSlideOut {
    from {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
    to {
        transform: scale(0.9) translateY(-20px);
        opacity: 0;
    }
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid rgba(59, 130, 246, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    color: #3b82f6;
    font-size: 1.5rem;
}

.btn-close-modal {
    background: transparent;
    border: none;
    color: var(--btn-close-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.2s, transform 0.2s;
    border-radius: 8px;
}

.btn-close-modal:hover {
    color: var(--btn-close-hover-color);
    background: var(--btn-close-hover-bg);
    transform: rotate(90deg);
}

.modal-filters {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
    background: rgba(30, 58, 138, 0.1);
}

.modal-body {
    padding: 2rem;
    overflow-y: auto;
    flex: 1;
    -webkit-overflow-scrolling: touch;
}

.asteroids-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    contain: layout;
}

.asteroid-card {
    background: var(--asteroid-card-bg);
    border: 1px solid var(--asteroid-card-border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.3s ease;
    animation: asteroidCardIn 0.3s ease backwards;
    will-change: transform;
}

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

.asteroid-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
    border-color: rgba(59, 130, 246, 0.5);
}

.asteroid-card h4 {
    color: #3b82f6;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.asteroid-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.info-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--info-row-color);
}

.info-row:first-child {
    justify-content: center;
    padding: 0.75rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.info-row:first-child .info-value {
    font-size: 1rem;
    color: #60a5fa;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.info-value {
    color: var(--info-value-color);
    font-weight: 600;
}

.badge-hazard {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-hazardous {
    background: rgba(220, 53, 69, 0.2);
    color: #dc3545;
    border: 1px solid rgba(220, 53, 69, 0.4);
}

.badge-safe {
    background: rgba(32, 201, 151, 0.2);
    color: #20c997;
    border: 1px solid rgba(32, 201, 151, 0.4);
}

.badge-sentry {
    background: rgba(111, 66, 193, 0.2);
    color: #6f42c1;
    border: 1px solid rgba(111, 66, 193, 0.4);
    margin-left: 0.5rem;
}

.nasa-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #3b82f6;
    text-decoration: none;
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 8px;
    transition: all 0.2s;
    margin-top: 0.5rem;
}

.nasa-link:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.6);
    color: #60a5fa;
    transform: translateX(5px);
}

.no-results {
    text-align: center;
    padding: 3rem;
    color: #6b7280;
    font-size: 1.1rem;
}

.loading-spinner {
    text-align: center;
    padding: 3rem;
    font-size: 1.1rem;
    color: #3b82f6;
}