/**
 * GPCC Lightbox - Minimal Styles
 */

.gpcc-lightbox {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.85);
    z-index: 9999;
}

.gpcc-lightbox.is-open {
    display: flex;
}

.gpcc-lightbox__stage img {
    max-width: 90vw;
    max-height: 90vh;
    display: block;
}

.gpcc-lightbox__btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    border: 0;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    font-size: 28px;
    width: 44px;
    height: 44px;
    cursor: pointer;
}

.gpcc-lightbox__close {
    top: 20px;
    right: 20px;
    transform: none;
}

.gpcc-lightbox__prev {
    left: 20px;
}

.gpcc-lightbox__next {
    right: 20px;
}

@media (prefers-reduced-motion: reduce) {
    .gpcc-lightbox * {
        transition: none !important;
    }
}

/**
 * GPCC Lightbox - Polished with Design Tokens
 * Enhanced styling with proper dark theme integration
 */

.gpcc-skin .gpcc-lightbox {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(2, 6, 23, 0.9); /* Dark overlay using design system */
    z-index: 9999;
    padding: var(--gap);
    box-sizing: border-box;
}

.gpcc-skin .gpcc-lightbox.is-open {
    display: flex;
}

.gpcc-skin .gpcc-lightbox__stage {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gpcc-skin .gpcc-lightbox__stage img {
    max-width: 100%;
    max-height: 100%;
    display: block;
    border-radius: var(--radius-md);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.gpcc-skin .gpcc-lightbox__btn {
    position: absolute;
    border: 1px solid var(--border);
    background: var(--surface-1);
    color: var(--text);
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.gpcc-skin .gpcc-lightbox__btn:hover {
    background: var(--surface-2);
    border-color: var(--primary);
    color: var(--primary);
    transform: scale(1.05);
}

.gpcc-skin .gpcc-lightbox__btn:focus,
.gpcc-skin .gpcc-lightbox__btn:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

.gpcc-skin .gpcc-lightbox__btn:active {
    transform: scale(0.95);
}

.gpcc-skin .gpcc-lightbox__close {
    top: var(--gap);
    right: var(--gap);
    font-size: var(--text-lg);
}

.gpcc-skin .gpcc-lightbox__close::before {
    content: "✕";
}

.gpcc-skin .gpcc-lightbox__prev {
    top: 50%;
    left: var(--gap);
    transform: translateY(-50%);
}

.gpcc-skin .gpcc-lightbox__prev::before {
    content: "‹";
    font-size: var(--text-2xl);
}

.gpcc-skin .gpcc-lightbox__next {
    top: 50%;
    right: var(--gap);
    transform: translateY(-50%);
}

.gpcc-skin .gpcc-lightbox__next::before {
    content: "›";
    font-size: var(--text-2xl);
}

/* Caption styling */
.gpcc-skin .gpcc-lightbox__caption {
    position: absolute;
    bottom: var(--gap);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: var(--text-muted);
    padding: calc(var(--gap) / 2) var(--gap);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    max-width: 80%;
    text-align: center;
    backdrop-filter: blur(8px);
}

/* Loading state */
.gpcc-skin .gpcc-lightbox__stage.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 32px;
    height: 32px;
    margin: -16px 0 0 -16px;
    border: 3px solid var(--border);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: gpcc-lightbox-spin 1s linear infinite;
}

@keyframes gpcc-lightbox-spin {
    to { transform: rotate(360deg); }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .gpcc-skin .gpcc-lightbox {
        padding: var(--gap-sm);
    }
    
    .gpcc-skin .gpcc-lightbox__stage {
        max-width: 95vw;
        max-height: 95vh;
    }
    
    .gpcc-skin .gpcc-lightbox__btn {
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
        font-size: var(--text-lg);
    }
    
    .gpcc-skin .gpcc-lightbox__close {
        top: var(--gap-sm);
        right: var(--gap-sm);
    }
    
    .gpcc-skin .gpcc-lightbox__prev {
        left: var(--gap-sm);
    }
    
    .gpcc-skin .gpcc-lightbox__next {
        right: var(--gap-sm);
    }
    
    .gpcc-skin .gpcc-lightbox__caption {
        bottom: var(--gap-sm);
        font-size: var(--text-xs);
        padding: calc(var(--gap) / 3) calc(var(--gap) / 2);
    }
}

/* Touch device optimizations */
@media (hover: none) {
    .gpcc-skin .gpcc-lightbox__btn:hover {
        transform: none;
        background: var(--surface-1);
        border-color: var(--border);
        color: var(--text);
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .gpcc-skin .gpcc-lightbox {
        background: rgba(0, 0, 0, 0.95);
    }
    
    .gpcc-skin .gpcc-lightbox__btn {
        border-width: 2px;
    }
    
    .gpcc-skin .gpcc-lightbox__btn:focus,
    .gpcc-skin .gpcc-lightbox__btn:focus-visible {
        outline-width: 3px;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .gpcc-skin .gpcc-lightbox__btn {
        transition: none;
    }
    
    .gpcc-skin .gpcc-lightbox__btn:hover {
        transform: none;
    }
    
    .gpcc-skin .gpcc-lightbox__btn:active {
        transform: none;
    }
    
    .gpcc-skin .gpcc-lightbox__stage.loading::after {
        animation: none;
        border-top-color: var(--border);
    }
}

/* Keyboard navigation feedback */
.gpcc-skin .gpcc-lightbox__btn[data-keyboard-focus="true"] {
    background: var(--surface-2);
    border-color: var(--primary);
}

/* Print styles (hide lightbox) */
@media print {
    .gpcc-skin .gpcc-lightbox {
        display: none !important;
    }
}