/* SOLIDABLE Gallery CSS - Glitch Gallery for Experiments Page */

/* Gallery Layout System */
.gallery-container {
    min-height: 100vh;
    padding: 2rem;
    background: var(--color-bg);
    position: relative;
}

.gallery-header {
    text-align: center;
    margin-bottom: 3rem;
    opacity: 0;
    animation: fadeIn 1s ease-in forwards;
}

.gallery-title {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    text-shadow: 0 0 10px color-mix(in oklab, var(--color-primary) 40%, transparent);
    letter-spacing: 2px;
}

.gallery-subtitle {
    font-size: 1rem;
    color: var(--color-accent);
    opacity: 0.8;
    margin-bottom: 2rem;
}

/* Responsive Grid System */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    opacity: 0;
    animation: fadeIn 1.5s ease-in 0.5s forwards;
}

/* Project Card Components */
.project-card {
    background: rgba(13, 13, 13, 0.8);
    border: 1px solid color-mix(in oklab, var(--color-primary) 30%, transparent);
    border-radius: 8px;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    /* Performance: defer heavy rendering until visible */
    content-visibility: auto;
    contain-intrinsic-size: 320px 420px;
}

/* Media Block */
.project-media {
    position: relative;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid color-mix(in oklab, var(--color-primary) 25%, transparent);
    background: rgba(0,0,0,0.35);
    margin-bottom: 1rem;
    aspect-ratio: var(--media-aspect, 16/9);
}

.project-media::after {
    /* subtle scanlines overlay */
    content: '';
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(0deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 3px);
    mix-blend-mode: overlay;
    pointer-events: none;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: saturate(1.05) contrast(1.03);
    transition: transform 0.35s ease, filter 0.35s ease, opacity 0.35s ease;
    will-change: transform, filter, opacity;
}

.project-card:hover .project-image {
    transform: scale(1.02);
    filter: saturate(1.1) contrast(1.05);
}

.project-image.is-placeholder {
    filter: none;
}

/* Blur-up transition states */
.project-image.is-loading {
    filter: blur(16px) saturate(1) contrast(1);
    transform: scale(1.02);
    opacity: 0.9;
}
.project-image.is-loaded {
    filter: saturate(1.05) contrast(1.03);
    transform: none;
    opacity: 1;
}

/* Glitch flash overlay when image resolves */
.media-flash {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
      linear-gradient(90deg, rgba(0,255,174,0) 0%, rgba(0,255,174,0.35) 40%, rgba(255,0,128,0.35) 60%, rgba(0,255,255,0) 100%),
      repeating-linear-gradient(0deg, rgba(255,255,255,0.08) 0 2px, transparent 2px 4px);
    mix-blend-mode: screen;
    animation: mediaFlash 0.42s ease-out forwards;
}

@keyframes mediaFlash {
    0% { opacity: 0; transform: translateX(-20%); }
    40% { opacity: 1; }
    100% { opacity: 0; transform: translateX(100%); }
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        color-mix(in oklab, var(--color-primary) 20%, transparent),
        transparent
    );
    transition: left 0.6s ease;
    z-index: 1;
}

.project-card:hover::before {
    left: 100%;
}

.project-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.5),
        0 0 20px color-mix(in oklab, var(--color-accent) 20%, transparent);
}

/* Glitch Effects */
.project-card.glitch-active {
    animation: cardGlitch 0.3s ease-in-out;
}

@keyframes cardGlitch {
    0%, 100% { transform: translateY(-5px); }
    20% { transform: translateY(-5px) translateX(2px); filter: hue-rotate(90deg); }
    40% { transform: translateY(-5px) translateX(-1px); filter: hue-rotate(-45deg); }
    60% { transform: translateY(-5px) translateX(1px); filter: hue-rotate(180deg); }
    80% { transform: translateY(-5px) translateX(0px); filter: hue-rotate(0deg); }
}

/* Project Content */
.project-header {
    position: relative;
    z-index: 2;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.3rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    text-shadow: 0 0 5px color-mix(in oklab, var(--color-primary) 30%, transparent);
}

.project-status {
    font-size: 0.8rem;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

.project-description {
    color: var(--color-accent);
    line-height: 1.4;
    margin-bottom: 1rem;
    opacity: 0.9;
    position: relative;
    z-index: 2;
}

/* Mermaid Diagram Block */
.project-diagram {
    margin-top: 0.75rem;
    border: 1px solid color-mix(in oklab, var(--color-primary) 25%, transparent);
    border-radius: 8px;
    background: linear-gradient(135deg, rgba(13,13,13,0.7), rgba(13,13,13,0.5));
    overflow: hidden;
}
.diagram-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.6rem 0.75rem;
    background: rgba(0,0,0,0.25);
    border-bottom: 1px solid color-mix(in oklab, var(--color-primary) 15%, transparent);
}
.diagram-title {
    color: var(--color-primary);
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}
.diagram-toggle {
    cursor: pointer;
    font: inherit;
    color: var(--color-accent);
    background: transparent;
    border: 1px solid var(--color-accent);
    padding: 0.3rem 0.7rem;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.diagram-toggle:hover,
.diagram-toggle:focus-visible {
    background: var(--color-accent);
    color: var(--color-bg);
    box-shadow: 0 0 10px color-mix(in oklab, var(--color-accent) 35%, transparent);
}
.diagram-content {
    padding: 0.75rem;
    max-height: 60vh;
    overflow: auto;
}
.diagram-content svg {
    width: 100% !important;
    height: auto !important;
    display: block;
    filter: drop-shadow(0 0 8px color-mix(in oklab, var(--color-primary) 20%, transparent));
}
.diagram-error {
    color: var(--color-secondary);
    padding: 0.5rem 0.25rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 2;
}

.tech-tag {
    background: color-mix(in oklab, var(--color-primary) 15%, transparent);
    color: var(--color-primary);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    border: 1px solid color-mix(in oklab, var(--color-primary) 30%, transparent);
    transition: all 0.2s ease;
}

.tech-tag:hover {
    background: color-mix(in oklab, var(--color-primary) 25%, transparent);
    border-color: var(--color-primary);
}

/* Project Actions */
.project-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    position: relative;
    z-index: 2;
}

.project-link {
    color: var(--color-accent);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-accent);
    border-radius: 4px;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-link:hover {
    background: var(--color-accent);
    color: var(--color-bg);
    box-shadow: 0 0 10px color-mix(in oklab, var(--color-accent) 40%, transparent);
}

/* Loading States */
.gallery-loading {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--color-primary);
}

.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid color-mix(in oklab, var(--color-primary) 30%, transparent);
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

/* Glitchy spinner variant */
.loading-spinner--glitch {
    position: relative;
    width: 64px;
    height: 64px;
    border: none;
    background: conic-gradient(from 0deg, var(--color-primary), var(--color-secondary), var(--color-accent), var(--color-primary));
    -webkit-mask: radial-gradient(circle 24px at 50% 50%, transparent 20px, #000 20.5px);
            mask: radial-gradient(circle 24px at 50% 50%, transparent 20px, #000 20.5px);
    animation: spin 1.4s linear infinite, crtFlicker 3s steps(40,end) infinite;
}
.loading-spinner--glitch .spinner-core {
    position: absolute; inset: 0;
    background: radial-gradient(closest-side, rgba(13,13,13,0) 75%, rgba(13,13,13,0.9) 76%);
}
.loading-spinner--glitch .spinner-scan {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(255,255,255,0.25) 50%, transparent 100%);
    mix-blend-mode: screen;
    animation: scanDown 1.6s ease-in-out infinite;
}

@keyframes scanDown { 0% { transform: translateY(-100%);} 50% { transform: translateY(0%);} 100% { transform: translateY(100%);} }
@keyframes crtFlicker { 0%,100% { filter: brightness(1);} 45% { filter: brightness(1.08);} 46% { filter: brightness(0.9);} 70% { filter: brightness(1.05);} }

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

.loading-text {
    font-size: 1.1rem;
    animation: pulse 2s ease-in-out infinite;
}

/* Glitch text overlay effect */
.glitch-text { position: relative; display: inline-block; }
.glitch-text::before, .glitch-text::after {
    content: attr(data-loading-text);
    position: absolute; left: 0; top: 0; width: 100%;
    clip-path: inset(0 0 0 0);
}
.glitch-text::before { color: var(--color-secondary); transform: translate(1px, 0); animation: glitchShift 2s infinite; }
.glitch-text::after { color: var(--color-accent); transform: translate(-1px, 0); animation: glitchShift 2.2s reverse infinite; }

@keyframes glitchShift {
  0% { clip-path: inset(0 0 80% 0); }
  20% { clip-path: inset(10% 0 60% 0); }
  40% { clip-path: inset(40% 0 30% 0); }
  60% { clip-path: inset(70% 0 10% 0); }
  80% { clip-path: inset(20% 0 50% 0); }
  100% { clip-path: inset(0 0 80% 0); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* Determinate progress bar */
.loading-progress { width: min(420px, 90%); height: 6px; margin: 0.75rem auto 0; background: rgba(255,255,255,0.08); border-radius: 999px; overflow: hidden; }
.progress-bar { height: 100%; width: 0%; background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); box-shadow: 0 0 14px color-mix(in oklab, var(--color-primary) 35%, transparent); transition: width 0.18s ease; }
.loading-hint { margin-top: 0.6rem; font-size: 0.85rem; color: color-mix(in oklab, var(--color-primary) 70%, transparent); opacity: 0.9; }

/* Skeleton placeholders (SOLIDABLE cyberpunk) */
.skeleton-card { border: 1px solid color-mix(in oklab, var(--color-primary) 20%, transparent); border-radius: 8px; padding: 1rem; background: linear-gradient(135deg, rgba(13,13,13,0.7), rgba(13,13,13,0.45)); animation: fadeIn 0.6s ease both; position: relative; overflow: hidden; }
.skeleton-card::after { content: ''; position: absolute; inset: 0; pointer-events: none; background: repeating-linear-gradient(0deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 3px); mix-blend-mode: overlay; opacity: 0.6; animation: crtFlicker 4s steps(50,end) infinite; }
.skeleton-media { height: 160px; border-radius: 6px; background: linear-gradient(90deg, rgba(0,255,174,0.12), rgba(0,255,255,0.22), rgba(255,0,128,0.12)); background-size: 300% 100%; animation: shimmer 1.2s infinite; border: 1px solid color-mix(in oklab, var(--color-primary) 25%, transparent); }
.skeleton-line { height: 12px; margin-top: 0.6rem; border-radius: 999px; background: linear-gradient(90deg, rgba(255,255,255,0.06), rgba(0,255,174,0.18), rgba(255,255,255,0.06)); background-size: 300% 100%; animation: shimmer 1.3s infinite; }
.skeleton-tags { display: flex; gap: 0.4rem; margin-top: 0.5rem; }
.skeleton-tag { width: 48px; height: 16px; border-radius: 999px; background: linear-gradient(90deg, rgba(255,255,255,0.06), rgba(0,255,255,0.18), rgba(255,255,255,0.06)); background-size: 300% 100%; animation: shimmer 1.4s infinite; }

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

/* Empty state */
.gallery-empty { grid-column: 1 / -1; text-align: center; padding: 3rem 1rem; border: 1px dashed color-mix(in oklab, var(--color-primary) 35%, transparent); border-radius: 10px; background: rgba(13,13,13,0.6); }
.empty-icon { font-size: 2rem; color: var(--color-secondary); margin-bottom: 0.5rem; filter: drop-shadow(0 0 8px color-mix(in oklab, var(--color-secondary) 35%, transparent)); }
.empty-title { color: var(--color-primary); margin: 0.25rem 0 0.5rem; letter-spacing: 1px; }
.empty-desc { color: color-mix(in oklab, var(--color-accent) 75%, transparent); max-width: 680px; margin: 0 auto 1rem; }
.empty-actions { display: flex; justify-content: center; align-items: center; gap: 0.75rem; margin: 0.25rem 0 0.75rem; }
.empty-hint { font-size: 0.85rem; color: color-mix(in oklab, var(--color-primary) 70%, transparent); }

/* Minimal button primitives */
.btn { cursor: pointer; font: inherit; color: var(--color-bg); background: var(--color-primary); border: 1px solid var(--color-primary); padding: 0.5rem 0.9rem; border-radius: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.btn:hover, .btn:focus-visible { box-shadow: 0 0 12px color-mix(in oklab, var(--color-primary) 35%, transparent); }
.btn.btn--ghost { color: var(--color-primary); background: transparent; border-color: var(--color-primary); }
.btn.btn--ghost:hover, .btn.btn--ghost:focus-visible { background: color-mix(in oklab, var(--color-primary) 12%, transparent); }

/* Featured Project Highlight */
.project-card.featured {
    grid-column: span 2;
    background: linear-gradient(
        135deg,
        rgba(13, 13, 13, 0.9),
        color-mix(in oklab, var(--color-primary) 5%, rgba(13, 13, 13, 0.9))
    );
    border-color: var(--color-primary);
}

.project-card.featured .project-title {
    font-size: 1.6rem;
    color: var(--color-secondary);
}

/* Navigation Integration */
.gallery-nav {
    position: fixed;
    top: 2rem;
    left: 2rem;
    z-index: 1000;
}

.nav-back {
    color: var(--color-accent);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-accent);
    border-radius: 4px;
    background: rgba(13, 13, 13, 0.8);
    backdrop-filter: blur(10px);
    transition: all 0.2s ease;
}

.nav-back:hover {
    background: var(--color-accent);
    color: var(--color-bg);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .gallery-container {
        padding: 1rem;
    }
    
    .gallery-title {
        font-size: 2rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .project-card.featured {
        grid-column: span 1;
    }
    
    .project-actions {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .gallery-nav {
        top: 1rem;
        left: 1rem;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .project-card,
    .project-card::before,
    .loading-spinner,
    .gallery-header,
    .gallery-grid,
    .media-flash,
    .skeleton-media,
    .skeleton-line,
    .skeleton-tag,
    .project-image,
    .project-card.glitch-active,
    .loading-spinner--glitch {
        animation: none !important;
        transition: none !important;
    }
    
    .project-card:hover {
        transform: none;
    }
}

/* Focus States for Keyboard Navigation */
.project-card:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Selected state to reinforce focus for SR users */
.project-card[aria-selected="true"] {
    box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-accent) 40%, transparent);
}

.project-link:focus-visible,
.nav-back:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}