/* ── LepszaStrona Portfolio ── */
:root {
    --lsp-primary: #2F98F7;
    --lsp-primary-hover: #1a7de0;
    --lsp-primary-dark: #0f66c0;
    --lsp-primary-light: #eef7ff;
    --lsp-text: #0a0a0a;
    --lsp-text-secondary: #64748b;
    --lsp-border: #e2e8f0;
    --lsp-bg: #ffffff;
    --lsp-bg-subtle: #f4f6f9;
    --lsp-radius: 16px;
    --lsp-radius-sm: 10px;
    --lsp-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --lsp-shadow-lg: 0 10px 30px rgba(0,0,0,0.10);
    --lsp-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --lsp-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ═══════════════════════════════════
   Carousel
   ═══════════════════════════════════ */
.lsp-carousel {
    position: relative;
    font-family: var(--lsp-font);
    -webkit-font-smoothing: antialiased;
}

.lsp-carousel *,
.lsp-carousel *::before,
.lsp-carousel *::after {
    box-sizing: border-box;
}

.lsp-carousel-viewport {
    overflow: hidden;
    margin: 0 56px;
    border-radius: 4px;
}

.lsp-carousel-track {
    display: flex;
    transition: transform 0.45s cubic-bezier(0.25, 0.1, 0.25, 1);
    will-change: transform;
}

.lsp-carousel-track.lsp-dragging {
    transition: none;
    cursor: grabbing;
}

/* ── Arrows ── */
.lsp-carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
    width: 44px;
    height: 44px;
    border: 1px solid var(--lsp-border);
    border-radius: 50%;
    background: var(--lsp-bg);
    color: var(--lsp-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--lsp-transition);
    box-shadow: var(--lsp-shadow);
}

.lsp-carousel-arrow:hover {
    background: var(--lsp-primary);
    border-color: var(--lsp-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(47, 152, 247, 0.3);
    transform: translateY(-50%) scale(1.05);
}

.lsp-arrow-prev { left: 0; }
.lsp-arrow-next { right: 0; }

/* ── Card ── */
.lsp-card {
    flex: 0 0 calc(100% / var(--lsp-visible, 3));
    min-width: 0;
    padding: 0 10px;
}

.lsp-card-inner {
    position: relative;
    background: var(--lsp-bg);
    border-radius: var(--lsp-radius);
    overflow: hidden;
    box-shadow: var(--lsp-shadow);
    border: 1px solid var(--lsp-border);
    cursor: pointer;
    pointer-events: auto;
    touch-action: manipulation;
    transition: transform var(--lsp-transition), box-shadow var(--lsp-transition);
    outline: none;
    height: 100%;
}

.lsp-card-inner:hover,
.lsp-card-inner:focus-visible {
    transform: translateY(-4px);
    box-shadow: var(--lsp-shadow-lg);
}

.lsp-card-inner:focus-visible {
    outline: 2px solid var(--lsp-primary);
    outline-offset: 2px;
}

/* ── Thumbnail ── */
.lsp-card-thumb {
    position: relative;
    aspect-ratio: 16 / 12;
    overflow: hidden;
    background: var(--lsp-bg-subtle);
}

.lsp-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.lsp-card-inner:hover .lsp-card-thumb img {
    transform: scale(1.05);
}

.lsp-card-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #cbd5e1;
}

/* ── Hover overlay ── */
.lsp-card-overlay {
    position: absolute;
    inset: 0;
    background: rgba(47, 152, 247, 0.0);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--lsp-transition);
    pointer-events: none;
}

.lsp-card-inner:hover .lsp-card-overlay {
    background: rgba(47, 152, 247, 0.15);
}

.lsp-card-zoom {
    color: #fff;
    opacity: 0;
    transform: scale(0.7);
    transition: all var(--lsp-transition);
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
}

.lsp-card-inner:hover .lsp-card-zoom {
    opacity: 1;
    transform: scale(1);
}

/* ── Card Info ── */
.lsp-card-info {
    padding: 16px 20px;
}

.lsp-card-title {
    font-size: 1rem;
    font-weight: 700;
    margin: 0 0 4px;
    color: var(--lsp-text);
    line-height: 1.3;
}

.lsp-card-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    min-height: 44px;
}

.lsp-card-cat {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--lsp-primary);
    background: var(--lsp-primary-light);
    padding: 3px 10px;
    border-radius: 999px;
    line-height: 1.5;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.lsp-card-industry {
    font-size: 0.8rem;
    color: var(--lsp-text-secondary);
    line-height: 1.45;
}

.lsp-empty {
    text-align: center;
    color: var(--lsp-text-secondary);
    font-family: var(--lsp-font);
    padding: 3rem 1rem;
}

/* ═══════════════════════════════════
   Lightbox — scrollable screen viewer
   ═══════════════════════════════════ */
.lsp-lightbox {
    position: fixed;
    inset: 0;
    z-index: 999999;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    font-family: var(--lsp-font);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    -webkit-font-smoothing: antialiased;
}

.lsp-lightbox[hidden] {
    display: flex !important;
}

.lsp-lightbox.lsp-lb-active {
    opacity: 1;
    visibility: visible;
}

/* ── Header bar ── */
.lsp-lb-header {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    z-index: 10;
}

.lsp-lb-title {
    font-weight: 700;
    font-size: 1rem;
    color: #fff;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-right: 16px;
}

.lsp-lb-close {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--lsp-transition), transform var(--lsp-transition);
}

.lsp-lb-close:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: scale(1.05);
}

/* ── Scrollable area ── */
.lsp-lb-scroll {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.2) transparent;
}

.lsp-lb-scroll::-webkit-scrollbar { width: 6px; }
.lsp-lb-scroll::-webkit-scrollbar-track { background: transparent; }
.lsp-lb-scroll::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 3px; }
.lsp-lb-scroll::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.35); }

/* ── Screen images container ── */
.lsp-lb-screens {
    max-width: min(1600px, calc(100vw - 32px));
    margin: 0 auto;
    padding: 24px 16px 60px;
}

.lsp-lb-screens img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.lsp-lb-screens img + img { margin-top: 24px; }

.lsp-lb-screens img.lsp-lb-loaded {
    opacity: 1;
    transform: translateY(0);
}

/* ── Scroll progress bar ── */
.lsp-lb-progress {
    flex-shrink: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.08);
}

.lsp-lb-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--lsp-primary), var(--lsp-primary-hover));
    border-radius: 0 2px 2px 0;
    transition: width 0.1s linear;
}

/* ── Loading spinner ── */
.lsp-lb-screens.lsp-lb-loading::before {
    content: '';
    display: block;
    width: 32px;
    height: 32px;
    margin: 80px auto 0;
    border: 3px solid rgba(255,255,255,0.12);
    border-top-color: var(--lsp-primary);
    border-radius: 50%;
    animation: lspSpin 0.7s linear infinite;
}

@keyframes lspSpin {
    to { transform: rotate(360deg); }
}

/* ═══════════════════════════════════
   Responsive
   ═══════════════════════════════════ */
@media (max-width: 1024px) {
    .lsp-carousel { --lsp-visible: 2 !important; }

    .lsp-carousel-viewport { margin: 0 48px; }
}

@media (max-width: 640px) {
    .lsp-carousel { --lsp-visible: 1 !important; }

    .lsp-carousel-viewport { margin: 0 40px; }

    .lsp-carousel-arrow {
        width: 36px;
        height: 36px;
    }

    .lsp-card { padding: 0 6px; }

    .lsp-card-info { padding: 12px 16px; }
    .lsp-card-title { font-size: 0.95rem; }

    /* Lightbox mobile */
    .lsp-lb-header { padding: 10px 14px; }
    .lsp-lb-title { font-size: 0.9rem; }
    .lsp-lb-close { width: 36px; height: 36px; border-radius: 8px; }
    .lsp-lb-screens { padding: 16px 8px 40px; }
    .lsp-lb-screens img { border-radius: 6px; }
    .lsp-lb-screens img + img { margin-top: 16px; }
}

/* ── Accessibility ── */
@media (prefers-reduced-motion: reduce) {
    .lsp-carousel-track,
    .lsp-card-inner,
    .lsp-card-thumb img,
    .lsp-card-overlay,
    .lsp-card-zoom,
    .lsp-carousel-arrow,
    .lsp-lb-screens img,
    .lsp-lightbox,
    .lsp-lb-close {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}