/* ==========================================================================
   HOMEPAGE — Updates carousel, Featured Works grid, Manifesto
   The .works-grid / .work-item component is also reused on the Projects page.
   ========================================================================== */


/* ==========================================================================
   1. Updates Carousel
   ========================================================================== */
.home-updates {
    position: relative;
    /* L/R/B drží pevnou hodnotu, jinak by se na širokém monitoru
       1vw rozrostlo (na 27" ≈ 25px) a okraje byly nesouměrné s vh.
       Top je menší, protože nad ním sedí fixní header. */
    padding: 8px 12px 12px 12px;
}

.updates-track {
    position: relative;
    width: 100%;
    /* Carousel drží výšku přesně podle viewportu, aby byl spodní okraj
       vždy 12px - nezávisle na šířce. Čtvercový aspect-ratio by při
       užším viewportu (split screen) nechal pod sebou prázdné místo. */
    height: calc(100vh - var(--header-height) - 20px);
    background-color: #1a1a1a;
    border-radius: 12px;
    overflow: hidden;
    transform-origin: center center;
    animation: updates-bigbang 1.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes updates-bigbang {
    from {
        transform: scale(0);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@media (prefers-reduced-motion: reduce) {
    .updates-track {
        animation: none;
    }
}

.update-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    pointer-events: none;
    /* Držíme všechny slidy na vlastní GPU vrstvě — jinak by prohlížeč
       u skrytých slidů odložil přípravu (zejména backdrop-filter blur
       v overlayi), což na prvním kole karuselu způsobovalo drobné
       zaseknutí při přechodu na "studený" slide. */
    will-change: opacity;
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.update-slide.is-active {
    opacity: 1;
    pointer-events: auto;
}

.update-image {
    width: 100%;
    height: 100%;
    background-color: #1a1a1a;
}

.update-image.is-pending {
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
}

.update-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.update-overlay {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    width: 360px;
    background-color: rgba(0, 0, 0, 0.42);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    padding: 0.7rem 1.1rem 0.65rem 1.1rem;
    border-radius: 10px;
    color: #fff;
}

.update-progress {
    display: flex;
    gap: 4px;
    margin-bottom: 0.7rem;
}

.progress-segment {
    flex: 1;
    position: relative;
    height: 1px;
    /* Darker gray — empty / not loading */
    background-color: rgba(255, 255, 255, 0.15);
    cursor: pointer;
    border: none;
    padding: 0;
    margin: 0;
    font: inherit;
    color: inherit;
    transition: background-color 0.2s ease;
}

.progress-segment.is-current {
    /* Lighter gray — track of the segment that is currently loading */
    background-color: rgba(255, 255, 255, 0.4);
}

.progress-segment::after {
    /* Expand clickable area without affecting layout.
       Vertical inset matches the overlay's top padding / progress margin
       so the hit zone reaches comfortably without overlapping the title row. */
    content: '';
    position: absolute;
    inset: -14px -2px;
}

.progress-segment:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

.progress-segment .progress-bar {
    display: block;
    height: 100%;
    width: 0%;
    background-color: #fff;
    transition: width 0.05s linear;
}

.update-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.35rem;
}

.update-title {
    font-size: 0.95rem;
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: -0.01em;
    color: #fff;
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

.update-cta {
    flex-shrink: 0;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: #fff;
    transition: var(--transition-fast);
}

.update-cta:hover {
    color: rgba(255, 255, 255, 0.65);
}

.update-type {
    display: block;
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.28em;
    color: rgba(255, 255, 255, 0.7);
}


/* ==========================================================================
   2. Featured Works grid
   Component shared with /projects index — see also projects.css for page chrome.
   ========================================================================== */
.featured-works {
    padding: 0;
    margin-top: 4vh;
}

.works-header {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5vh 0;
    margin-bottom: 3vh;
}

.works-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background-color: var(--border-color);
}

.works-title {
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--text-muted);
    font-weight: 400;
    margin: 0;
}

.works-cta {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-main);
    background-color: #f1f1f1;
    padding: 0.5rem 0.95rem;
    border-radius: 6px;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.works-cta:hover {
    background-color: #e2e2e2;
    color: var(--text-main);
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 0;
    align-items: stretch;
    margin: -3px;                    /* offset cell padding so grid still aligns to container */
}

.work-item {
    display: block;
    text-decoration: none;
    color: inherit;
    grid-column: span 4;             /* default if no span-N class */
    padding: 3px;                    /* fixed image inset; visible gap = 2 × 3px = 6px uniform, independent of viewport (matches MAD reference) */
}

.work-item.span-1  { grid-column: span 1; }
.work-item.span-2  { grid-column: span 2; }
.work-item.span-3  { grid-column: span 3; }
.work-item.span-4  { grid-column: span 4; }
.work-item.span-5  { grid-column: span 5; }
.work-item.span-6  { grid-column: span 6; }
.work-item.span-7  { grid-column: span 7; }
.work-item.span-8  { grid-column: span 8; }
.work-item.span-9  { grid-column: span 9; }
.work-item.span-10 { grid-column: span 10; }
.work-item.span-11 { grid-column: span 11; }
.work-item.span-12 { grid-column: span 12; }

.work-image {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #f6f6f6;
    border-radius: 12px;
}

.work-image.is-pending {
    background-image: linear-gradient(135deg, #f0f0f0 0%, #f8f8f8 100%);
}

.work-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 3s cubic-bezier(0.16, 1, 0.3, 1);
}

.work-item:hover .work-image img {
    transform: scale(1.04);
}

.work-meta {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    display: flex;
    flex-direction: column-reverse;
    gap: 0.35rem;
    padding: 0.7rem 1.1rem 0.65rem 1.1rem;
    background-color: rgba(0, 0, 0, 0.42);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-radius: 10px;
    color: #fff;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 1.6s cubic-bezier(0.16, 1, 0.3, 1) 0.15s,
                transform 1.6s cubic-bezier(0.16, 1, 0.3, 1) 0.15s;
    pointer-events: none;
}

.work-item:hover .work-meta {
    opacity: 1;
    transform: translateY(0);
}

.work-year {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.28em;
    color: rgba(255, 255, 255, 0.7);
}

.work-name {
    font-size: 0.95rem;
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: -0.01em;
    margin: 0;
    color: #fff;
}

.works-cta-bottom {
    display: flex;
    justify-content: center;
    margin-top: 6vh;
    padding-bottom: 6vh;
}


/* ==========================================================================
   3. Manifesto
   ========================================================================== */
.manifesto {
    position: relative;
    padding: 6vh 0 10vh 0;
}

.manifesto::before {
    content: '';
    position: absolute;
    top: 0;
    left: var(--container-gutter);
    right: var(--container-gutter);
    height: 1px;
    background-color: var(--border-color);
}

.manifesto-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 0;
    align-items: start;
}

.manifesto-author {
    grid-column: 1 / span 4;
    padding-right: 1vw;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
}

.author-name {
    color: var(--text-main);
    font-weight: 500;
    margin: 0 0 0.5rem 0;
}

.author-role {
    color: var(--text-muted);
    margin: 0;
    line-height: 1.5;
}

.manifesto-text {
    grid-column: 5 / -1;
    padding-left: 0.5vw;
    font-size: clamp(1.6rem, 3.2vw, 2.8rem);
    font-weight: 300;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.manifesto-text p {
    margin: 0;
}


/* ==========================================================================
   4. About Preview (MAD-style "Inspired by Nature, Driven by Innovation")
   Concrete bio teaser placed after the poetic Manifesto, linking to /profile.
   ========================================================================== */
.about-preview {
    padding: 4vh 0 10vh 0;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 0;
    align-items: center;
}

.about-text {
    grid-column: 2 / span 4;
    padding-right: 2vw;
}

.about-title {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-main);
    margin: 0 0 2.5rem 0;
}

.about-paragraph {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-muted);
    margin: 0 0 2.5rem 0;
}

/* CTA inherits the .works-cta visual language (light gray pill, dark text,
   uppercase letterspaced label). Inline-flex lets us pair the label with
   an arrow that slides on hover. */
.about-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0.95rem;
    background-color: #f1f1f1;
    color: var(--text-main);
    border-radius: 6px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.about-cta:hover {
    background-color: #e2e2e2;
    color: var(--text-main);
}

.about-cta-arrow {
    display: inline-block;
    transition: transform 0.25s ease;
}

.about-cta:hover .about-cta-arrow {
    transform: translateX(3px);
}

.about-image {
    grid-column: 7 / span 5;
    /* Square format — matches the MAD "Inspired by Nature" reference and
       keeps a generous footprint on wide monitors regardless of how tall
       the text column happens to render. */
    aspect-ratio: 1 / 1;
    background-color: #f6f6f6;
    border-radius: 12px;
    overflow: hidden;
}

.about-image.is-pending {
    background-image: linear-gradient(135deg, #f0f0f0 0%, #f8f8f8 100%);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


/* ==========================================================================
   5. Responsive
   ========================================================================== */
@media (max-width: 1024px) {
    /* Tablet: collapse the 12-column grid into pairs (6+6) */
    .work-item[class*="span-"] {
        grid-column: span 6;
    }

    .manifesto-grid {
        grid-template-columns: 1fr;
        gap: 3vh;
    }
    .manifesto-author,
    .manifesto-text {
        grid-column: auto;
        padding-left: 0;
        padding-right: 0;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 4vh;
    }
    .about-text {
        grid-column: auto;
        padding-right: 0;
        order: 1;
    }
    .about-image {
        grid-column: auto;
        order: 2;
        /* Keep the square format on stacked layout for visual consistency
           with desktop (and with the MAD reference). */
        aspect-ratio: 1 / 1;
    }
}

@media (max-width: 768px) {
    .home-updates {
        padding: 2vh 4vw 0 4vw;
    }
    .updates-track {
        height: auto;
        aspect-ratio: 4 / 5;
        border-radius: 12px;
    }
    .update-overlay {
        left: 0.75rem;
        right: 0.75rem;
        bottom: 0.75rem;
        width: auto;
        padding: 0.6rem 0.85rem 0.55rem 0.85rem;
    }
    .update-title {
        font-size: 0.9rem;
    }

    /* Mobile: every project takes full width */
    .work-item[class*="span-"] {
        grid-column: span 12;
    }

    .manifesto-text {
        font-size: clamp(1.4rem, 5vw, 2rem);
    }

    .about-preview {
        padding: 2vh 0 8vh 0;
    }
    .about-title {
        font-size: clamp(1.5rem, 6vw, 2rem);
        margin-bottom: 1.5rem;
    }
    .about-paragraph {
        font-size: 0.9rem;
        margin-bottom: 1.75rem;
    }
}