/* ==========================================================================
   Loading States CSS - The Smithy Educational Platform
   ========================================================================== */

/* Base Loading Container */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    padding: 2rem;
    background: rgba(0, 0, 0, 0.8);
    border-radius: 8px;
    backdrop-filter: blur(10px);
    position: relative;
}

/* Primary Loading Spinner - Forge Hammer Theme */
.loading-spinner {
    width: 60px;
    height: 60px;
    position: relative;
    margin-bottom: 1rem;
}

.loading-spinner::before {
    content: "🔨";
    font-size: 2.5rem;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    animation: forge-hammer 1.2s ease-in-out infinite;
    filter: drop-shadow(0 2px 4px rgba(255, 138, 0, 0.3));
}

@keyframes forge-hammer {
    0%, 50% { 
        transform: translate(-50%, -50%) rotate(0deg); 
        color: #ff8a00;
    }
    25% { 
        transform: translate(-50%, -60%) rotate(-15deg); 
        color: #ffb347;
    }
    75% { 
        transform: translate(-50%, -40%) rotate(15deg); 
        color: #e67300;
    }
    100% { 
        transform: translate(-50%, -50%) rotate(0deg); 
        color: #ff8a00;
    }
}

/* Secondary Spinner - Gear Animation */
.loading-spinner-gear {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 138, 0, 0.3);
    border-radius: 50%;
    border-top: 3px solid #ff8a00;
    animation: spin-gear 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin-gear {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Loading Text */
.loading-text {
    color: #fff;
    font-size: 1.1rem;
    text-align: center;
    opacity: 0.9;
    margin-bottom: 0.5rem;
    font-family: 'Merriweather', serif;
}

.loading-subtext {
    color: #ccc;
    font-size: 0.9rem;
    text-align: center;
    opacity: 0.7;
}

/* Progress Bar */
.loading-progress {
    width: 100%;
    max-width: 300px;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 1rem;
}

.loading-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #ff8a00, #ffb347, #ff8a00);
    background-size: 200% 100%;
    animation: progress-glow 2s ease-in-out infinite;
    border-radius: 4px;
    transition: width 0.3s ease;
}

@keyframes progress-glow {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Skeleton Loading for Image Content */
.skeleton-image {
    width: 100%;
    height: 300px;
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0.1) 25%, 
        rgba(255, 255, 255, 0.2) 50%, 
        rgba(255, 255, 255, 0.1) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 2s ease-in-out infinite;
    border-radius: 8px;
    position: relative;
}

.skeleton-image::after {
    content: "🖼️";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    opacity: 0.3;
}

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

/* Skeleton Loading for Text Content */
.skeleton-text {
    height: 1.2rem;
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0.1) 25%, 
        rgba(255, 255, 255, 0.2) 50%, 
        rgba(255, 255, 255, 0.1) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 2s ease-in-out infinite;
    border-radius: 4px;
    margin-bottom: 0.8rem;
}

.skeleton-text.short { width: 60%; }
.skeleton-text.medium { width: 80%; }
.skeleton-text.long { width: 95%; }

/* Loading Overlay for Full-Screen Loading */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

/* Audio Loading Indicator */
.audio-loading {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 138, 0, 0.2);
    border: 1px solid rgba(255, 138, 0, 0.4);
    border-radius: 20px;
    color: #ff8a00;
    font-size: 0.9rem;
}

.audio-loading::before {
    content: "🎵";
    animation: audio-pulse 1.5s ease-in-out infinite;
}

@keyframes audio-pulse {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.1); opacity: 1; }
}

/* Map Loading with Progressive Reveal */
.map-loading-container {
    position: relative;
    min-height: 400px;
    background: rgba(47, 47, 47, 0.8);
    border-radius: 8px;
    overflow: hidden;
}

.map-loading-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 8px;
    padding: 16px;
    height: 100%;
}

.map-skeleton-room {
    aspect-ratio: 1;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    position: relative;
    animation: map-room-fade-in 0.5s ease-out forwards;
    opacity: 0;
}

.map-skeleton-room::after {
    content: "🏠";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.3;
    font-size: 1.5rem;
}

@keyframes map-room-fade-in {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

/* Plugin Loading States */
.plugin-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    border-radius: inherit;
}

/* Mode Transition Loading */
.mode-transition {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, #2f2f2f, #1a1a1a);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    animation: mode-transition-in 0.3s ease-out;
}

@keyframes mode-transition-in {
    from { opacity: 0; transform: scale(1.1); }
    to { opacity: 1; transform: scale(1); }
}

/* Accessibility: Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .loading-spinner::before,
    .loading-spinner-gear,
    .loading-progress-bar,
    .skeleton-image,
    .skeleton-text {
        animation: none;
    }
    
    .loading-spinner::before {
        transform: translate(-50%, -50%);
    }
    
    .loading-progress-bar {
        background: #ff8a00;
    }
    
    .skeleton-image,
    .skeleton-text {
        background: rgba(255, 255, 255, 0.15);
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .loading-container {
        background: #000;
        border: 2px solid #fff;
    }
    
    .loading-text {
        color: #fff;
        font-weight: bold;
    }
    
    .loading-progress {
        background: #333;
        border: 1px solid #fff;
    }
    
    .loading-progress-bar {
        background: #fff;
    }
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
    .loading-container {
        min-height: 150px;
        padding: 1.5rem;
    }
    
    .loading-spinner {
        width: 50px;
        height: 50px;
    }
    
    .loading-spinner::before {
        font-size: 2rem;
    }
    
    .loading-text {
        font-size: 1rem;
    }
    
    .skeleton-image {
        height: 200px;
    }
    
    .map-loading-grid {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
        gap: 6px;
        padding: 12px;
    }
}

/* Screen Reader Only Content */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Loading State Utilities */
.loading-fade-in {
    animation: fade-in 0.3s ease-out;
}

.loading-fade-out {
    animation: fade-out 0.3s ease-out forwards;
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fade-out {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* Hidden State */
.loading-hidden {
    display: none !important;
}