/**
 * Skeleton Loading States
 * Provides loading placeholders for content
 */

/* Base skeleton element */
.skeleton {
    background: linear-gradient(
        90deg,
        rgba(148, 163, 184, 0.1) 0%,
        rgba(148, 163, 184, 0.2) 50%,
        rgba(148, 163, 184, 0.1) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: 0.375rem;
}

.dark .skeleton {
    background: linear-gradient(
        90deg,
        rgba(51, 65, 85, 0.3) 0%,
        rgba(71, 85, 105, 0.4) 50%,
        rgba(51, 65, 85, 0.3) 100%
    );
    background-size: 200% 100%;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Skeleton variants */
.skeleton-text {
    height: 1rem;
    width: 100%;
    margin-bottom: 0.5rem;
}

.skeleton-text-sm {
    height: 0.875rem;
}

.skeleton-text-lg {
    height: 1.25rem;
}

.skeleton-title {
    height: 2rem;
    width: 70%;
    margin-bottom: 1rem;
}

.skeleton-circle {
    border-radius: 50%;
    width: 3rem;
    height: 3rem;
}

.skeleton-avatar {
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
}

.skeleton-button {
    height: 2.5rem;
    width: 8rem;
    border-radius: 0.5rem;
}

.skeleton-card {
    height: 12rem;
    width: 100%;
    border-radius: 1rem;
}

.skeleton-image {
    aspect-ratio: 16 / 9;
    width: 100%;
    border-radius: 0.75rem;
}

/* Card skeleton layout */
.skeleton-card-content {
    padding: 1.5rem;
}

.skeleton-card-content .skeleton-title {
    margin-bottom: 0.75rem;
}

.skeleton-card-content .skeleton-text {
    margin-bottom: 0.5rem;
}

.skeleton-card-content .skeleton-text:last-child {
    width: 60%;
    margin-bottom: 0;
}

/* Grid skeleton */
.skeleton-grid {
    display: grid;
    gap: 1.5rem;
}

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

.skeleton-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.skeleton-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {
    .skeleton-grid-2,
    .skeleton-grid-3,
    .skeleton-grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Pulse animation variant (alternative to shimmer) */
.skeleton-pulse {
    animation: skeleton-pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

/* App card skeleton */
.skeleton-app-card {
    padding: 1.5rem;
    border-radius: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.skeleton-app-card .skeleton-image {
    margin-bottom: 1rem;
}

.skeleton-app-card .skeleton-title {
    width: 80%;
    margin-bottom: 0.75rem;
}

.skeleton-app-card .skeleton-text {
    margin-bottom: 0.5rem;
}

.skeleton-app-card .skeleton-button {
    margin-top: 1rem;
}

/* Project card skeleton */
.skeleton-project-card {
    overflow: hidden;
    border-radius: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.skeleton-project-card .skeleton-image {
    margin-bottom: 0;
    border-radius: 0;
}

.skeleton-project-card .skeleton-card-content {
    padding: 1.5rem;
}

/* Service card skeleton */
.skeleton-service-card {
    padding: 2rem;
    border-radius: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.skeleton-service-card .skeleton-circle {
    margin-bottom: 1.5rem;
}

/* Navigation skeleton */
.skeleton-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 1rem;
}

.skeleton-nav .skeleton-logo {
    width: 8rem;
    height: 2rem;
}

.skeleton-nav .skeleton-links {
    display: flex;
    gap: 1.5rem;
    flex: 1;
}

.skeleton-nav .skeleton-link {
    width: 4rem;
    height: 1.5rem;
}

/* Hero skeleton */
.skeleton-hero {
    padding: 4rem 0;
    text-align: center;
}

.skeleton-hero .skeleton-badge {
    width: 12rem;
    height: 2rem;
    margin: 0 auto 2rem;
    border-radius: 9999px;
}

.skeleton-hero .skeleton-title {
    width: 80%;
    height: 4rem;
    margin: 0 auto 1.5rem;
}

.skeleton-hero .skeleton-text {
    width: 60%;
    margin: 0 auto 2rem;
}

.skeleton-hero .skeleton-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Stats skeleton */
.skeleton-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.skeleton-stat {
    text-align: center;
}

.skeleton-stat .skeleton-number {
    width: 6rem;
    height: 3rem;
    margin: 0 auto 0.5rem;
}

.skeleton-stat .skeleton-label {
    width: 8rem;
    height: 1rem;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .skeleton-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Utility classes */
.skeleton-w-full { width: 100%; }
.skeleton-w-3-4 { width: 75%; }
.skeleton-w-1-2 { width: 50%; }
.skeleton-w-1-3 { width: 33.333%; }
.skeleton-w-1-4 { width: 25%; }

.skeleton-mb-2 { margin-bottom: 0.5rem; }
.skeleton-mb-4 { margin-bottom: 1rem; }
.skeleton-mb-6 { margin-bottom: 1.5rem; }
.skeleton-mb-8 { margin-bottom: 2rem; }