/**
 * KSSBS.SK — detail článku (prispevok.php).
 *
 * Hlavička webu pláva nad obsahom: úvod začína pod ňou (--header-offset),
 * bočná lišta sa lepí pod ňu (--header-sticky), galéria je nad ňou (z-index).
 */

.article-page {
    background: var(--color-white);
}

/* ── Úvod ─────────────────────────────────────────────────────────── */
.art-hero {
    padding: calc(var(--header-offset) + var(--space-6)) 0 var(--space-10);
    background:
        radial-gradient(900px 360px at 85% 0%, rgba(82, 95, 225, 0.10), transparent 65%),
        var(--color-gray-50);
}

.art-hero--cover {
    padding-bottom: calc(var(--space-16) + 72px); /* obrázok zasahuje do úvodu */
}

.art-hero__inner {
    max-width: 860px;
}

.art-hero__crumbs {
    color: var(--color-gray-500);
}

.art-hero__crumbs a:hover {
    color: var(--color-gray-900);
}

.art-hero__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: var(--space-4);
}

.art-hero__chips a.doc-chip {
    text-decoration: none;
    transition: filter var(--transition-fast);
}

.art-hero__chips a.doc-chip:hover {
    filter: brightness(0.95);
}

.art-hero__title {
    margin: 0;
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 1.2rem + 2.4vw, 3rem);
    font-weight: var(--font-bold);
    line-height: 1.15;
    letter-spacing: -0.01em;
    color: var(--color-gray-900);
    text-wrap: balance;
}

.art-hero__perex {
    margin: var(--space-5) 0 0;
    font-size: clamp(1.05rem, 1rem + 0.3vw, 1.2rem);
    line-height: var(--leading-relaxed);
    color: var(--color-gray-600);
}

.art-hero__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 20px;
    margin: var(--space-6) 0 0;
    padding: 0;
    list-style: none;
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

.art-hero__meta li {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.art-hero__meta .material-symbols-outlined {
    font-size: 18px;
}

/* ── Titulný obrázok ──────────────────────────────────────────────── */
.art-cover {
    max-width: 1080px;
    margin: calc((var(--space-16) + 56px) * -1) auto 0;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    background: var(--color-gray-100);
    animation: artCoverIn 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.art-cover {
    position: relative;
}

.art-cover__credit {
    position: absolute;
    right: 12px;
    bottom: 10px;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(6px);
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.92);
}

.art-cover img {
    display: block;
    width: 100%;
    max-height: min(72vh, 640px);
    object-fit: cover;
}

@keyframes artCoverIn {
    from { opacity: 0; transform: translateY(16px) scale(0.99); }
    to { opacity: 1; transform: none; }
}

/* ── Text + bočná lišta ───────────────────────────────────────────── */
.art-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-6);
    max-width: 920px;
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
}

@media (min-width: 1024px) {
    .art-layout {
        grid-template-columns: 52px minmax(0, 760px);
        gap: var(--space-12);
        justify-content: center;
        max-width: 1080px;
    }
}

.art-rail {
    display: flex;
    gap: var(--space-2);
    order: 2; /* na mobile pod textom */
}

@media (min-width: 1024px) {
    .art-rail {
        order: 0;
        flex-direction: column;
        align-self: start;
        position: sticky;
        top: var(--header-sticky);
    }
}

.art-rail__btn {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border: 0;
    border-radius: var(--radius-full);
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    cursor: pointer;
    text-decoration: none;
    transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.art-rail__btn:hover,
.art-rail__btn:focus-visible {
    background: var(--color1);
    color: #fff;
    transform: translateY(-1px);
}

.art-rail__sep {
    width: 1px;
    height: 46px;
    margin: 0 4px;
    background: var(--color-gray-200);
}

@media (min-width: 1024px) {
    .art-rail__sep {
        width: 46px;
        height: 1px;
        margin: 4px 0;
    }
}

.art-content {
    color: var(--color-gray-700);
}

.art-content img.is-broken {
    display: none;
}

/* ── Fotogaléria ──────────────────────────────────────────────────── */
.art-gallery {
    margin-top: var(--space-12);
}

.art-gallery__title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 var(--space-4);
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
}

.art-gallery__count {
    padding: 2px 10px;
    border-radius: var(--radius-full);
    background: var(--color-gray-100);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: var(--font-semibold);
    color: var(--color-gray-500);
}

.art-gallery__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 8px;
}

.art-gallery__item {
    display: block;
    aspect-ratio: 4 / 3;
    padding: 0;
    border: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-gray-100);
    cursor: zoom-in;
}

.art-gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow), filter var(--transition-fast);
}

.art-gallery__item:hover img,
.art-gallery__item:focus-visible img {
    transform: scale(1.06);
    filter: brightness(1.05);
}

.art-gallery__item:focus-visible {
    outline: 3px solid var(--color1);
    outline-offset: 2px;
}

/* Prezeranie fotiek — nad hlavičkou (1000), tooltipmi (3000) aj odkazom na obsah */
html.is-locked {
    overflow: hidden;
}

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 5000;
    display: grid;
    place-items: center;
    padding: 64px 16px 48px;
}

.lightbox__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 10, 20, 0.92);
}

.lightbox__figure {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    max-width: min(1400px, 100%);
    max-height: 100%;
    margin: 0;
}

.lightbox__img {
    display: block;
    max-width: 100%;
    max-height: calc(100vh - 150px);
    max-height: calc(100dvh - 150px);
    border-radius: var(--radius-lg);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
    object-fit: contain;
}

.lightbox__caption {
    display: flex;
    gap: 12px;
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
}

.lightbox__btn {
    position: absolute;
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border: 0;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.lightbox__btn:hover,
.lightbox__btn:focus-visible {
    background: rgba(255, 255, 255, 0.24);
}

.lightbox__btn--close {
    top: 14px;
    right: 14px;
}

.lightbox__btn--prev {
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox__btn--next {
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
}

@media (max-width: 600px) {
    .lightbox__btn--prev,
    .lightbox__btn--next {
        top: auto;
        bottom: 12px;
        transform: none;
    }
}

/* ── Štítky a reakcie ─────────────────────────────────────────────── */
.art-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: var(--space-10);
    color: var(--color-gray-400);
}

.art-tag {
    padding: 4px 12px;
    border-radius: var(--radius-full);
    background: var(--color-gray-100);
    font-size: var(--text-sm);
    color: var(--color-gray-700);
    text-decoration: none;
}

.art-tag:hover {
    background: var(--color-gray-200);
}

.art-react {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-top: var(--space-8);
    padding: var(--space-5) var(--space-6);
    border-radius: var(--radius-2xl);
    background: var(--color-gray-50);
}

.art-react__label {
    margin: 0;
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
}

.art-react__buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.art-react__btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 42px;
    padding: 0 14px;
    border: 0;
    border-radius: var(--radius-full);
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    font: inherit;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-gray-700);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.art-react__btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.art-react__btn[aria-pressed="true"] {
    background: var(--color-main-tint);
    box-shadow: inset 0 0 0 2px var(--color1);
    color: var(--color-main-ink);
}

/* ── Staršie / novšie ─────────────────────────────────────────────── */
.art-nav {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-3);
    max-width: 1080px;
    padding-bottom: var(--space-12);
}

@media (min-width: 768px) {
    .art-nav {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.art-nav__link {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-3);
    border-radius: var(--radius-2xl);
    background: var(--color-gray-50);
    color: inherit;
    text-decoration: none;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.art-nav__link:hover {
    background: var(--color-gray-100);
    transform: translateY(-2px);
}

.art-nav__link--next {
    flex-direction: row-reverse;
    text-align: right;
}

.art-nav__link img {
    flex: none;
    width: 88px;
    height: 66px;
    border-radius: var(--radius-lg);
    object-fit: cover;
}

.art-nav__text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.art-nav__label {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-gray-500);
}

.art-nav__link--next .art-nav__label {
    flex-direction: row-reverse;
    align-self: flex-end;
}

.art-nav__label .material-symbols-outlined {
    font-size: 16px;
}

.art-nav__title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-weight: var(--font-semibold);
    line-height: 1.35;
    color: var(--color-gray-900);
}

/* ── Ďalšie články ────────────────────────────────────────────────── */
.art-related {
    padding: var(--space-16) 0;
    background: var(--color-gray-50);
}

/* ── Nenájdený článok ─────────────────────────────────────────────── */
.art-404 {
    padding: calc(var(--header-offset) + var(--space-16)) 0 var(--space-20);
    text-align: center;
    background: var(--color-gray-50);
}

.art-404 .material-symbols-outlined:first-child {
    font-size: 64px;
    color: var(--color-gray-300);
}

.art-404 h1 {
    margin: var(--space-4) 0 var(--space-2);
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    color: var(--color-gray-900);
}

.art-404 p {
    margin: 0 0 var(--space-6);
    color: var(--color-gray-500);
}

.art-404__btn {
    background: var(--color1);
    color: #fff;
}

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

@media (max-width: 600px) {
    .art-hero {
        padding-top: var(--space-6);
    }

    .art-gallery__grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 4px;
    }

    .art-gallery__item {
        border-radius: var(--radius-md);
    }

    .art-hero--cover {
        padding-bottom: calc(var(--space-10) + 48px);
    }

    .art-cover {
        margin-top: calc((var(--space-10) + 40px) * -1);
        border-radius: var(--radius-xl);
    }

    .art-nav__link img {
        width: 64px;
        height: 48px;
    }
}