/* Loading Skeleton Screens */

/* Base skeleton element */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--card-bg) 0%,
        rgba(var(--primary-color-rgb, 75, 159, 225), 0.1) 50%,
        var(--card-bg) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
}

/* Skeleton loading animation */
@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Skeleton text line */
.skeleton-text {
    height: 1rem;
    margin-bottom: 0.5rem;
    border-radius: var(--radius-sm);
}

.skeleton-text:last-child {
    margin-bottom: 0;
}

/* Different skeleton text widths */
.skeleton-text-short {
    width: 40%;
}

.skeleton-text-medium {
    width: 60%;
}

.skeleton-text-long {
    width: 80%;
}

.skeleton-text-full {
    width: 100%;
}

/* Skeleton heading */
.skeleton-heading {
    height: 2rem;
    width: 60%;
    margin-bottom: 1rem;
    border-radius: var(--radius-md);
}

/* Skeleton for weather/data cards */
.skeleton-card {
    padding: 1.5rem;
    min-height: 200px;
}

/* Skeleton data row (label + value) */
.skeleton-data-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.skeleton-data-row:last-child {
    margin-bottom: 0;
}

.skeleton-label {
    height: 1rem;
    width: 40%;
    border-radius: var(--radius-sm);
}

.skeleton-value {
    height: 1rem;
    width: 30%;
    border-radius: var(--radius-sm);
}

/* Skeleton for flight notification */
.skeleton-notification {
    height: 80px;
    margin-bottom: 1rem;
    border-radius: var(--radius-lg);
}

/* Skeleton for airline logo */
.skeleton-logo {
    width: 120px;
    height: 60px;
    margin: 0 auto 1rem;
    border-radius: var(--radius-md);
}

/* Skeleton button */
.skeleton-button {
    height: 48px;
    width: 100%;
    margin-bottom: 0.75rem;
    border-radius: var(--radius-md);
}

.skeleton-button:last-child {
    margin-bottom: 0;
}

/* Skeleton for forecast periods */
.skeleton-forecast-period {
    padding: 1rem;
    margin-bottom: 0.75rem;
    border-radius: var(--radius-md);
    min-height: 100px;
}

/* Dark mode adjustments */
[data-theme="dark"] .skeleton {
    background: linear-gradient(
        90deg,
        var(--card-bg) 0%,
        rgba(93, 173, 226, 0.15) 50%,
        var(--card-bg) 100%
    );
    background-size: 200% 100%;
}

/* Hide actual content when showing skeleton */
.loading .data-row:not(.skeleton-data-row),
.loading .weather-detail:not(.skeleton-data-row),
.loading .flight-detail:not(.skeleton-card),
.loading .notification-content:not(.skeleton-notification) {
    display: none;
}

/* Show skeleton elements only when loading */
.skeleton-element {
    display: none;
}

.loading .skeleton-element {
    display: block;
}

.loading .skeleton-data-row {
    display: flex;
}

/* Pulse animation variant (alternative style) */
.skeleton-pulse {
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

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

/* Shimmer effect (alternative to gradient) */
.skeleton-shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    animation: skeleton-shimmer 2s ease-in-out infinite;
}

@keyframes skeleton-shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .skeleton-card {
        padding: 1rem;
        min-height: 150px;
    }

    .skeleton-notification {
        height: 60px;
    }

    .skeleton-logo {
        width: 80px;
        height: 40px;
    }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    .skeleton,
    .skeleton-pulse,
    .skeleton-shimmer::after {
        animation: none;
    }

    .skeleton {
        background: var(--card-bg);
        opacity: 0.6;
    }
}