/* Nagłówek strony głównej jako arkusz rysunkowy (pages/blocks/hero.html).
   Telefon: tytuł, wstęp, przyciski, kadr z osiami, tabliczka pod kadrem.
   Komputer: tekst w lewej kolumnie, arkusz (kadr z osiami + tabliczka pod nim) w prawej — całość na jednym ekranie. */

.hero { display: grid; gap: 30px; padding-block: 28px 0; }
.hero__head { display: grid; gap: 22px; }
.hero__title {
    margin-top: 14px; font-family: var(--serif); font-weight: 400; color: var(--ink-strong);
    font-size: clamp(48px, 14vw, 68px); line-height: 0.94; letter-spacing: -0.02em; font-variant-numeric: lining-nums;
}
.hero__title em { display: block; font-family: var(--serif-italic); font-style: italic; font-size: 0.84em; letter-spacing: -0.035em; }
.hero__attr { margin-top: 14px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted-2); }
.hero__aside { display: grid; gap: 22px; }
.hero__lead { font-size: 16px; line-height: 1.7; max-width: 44ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 10px; }
.hero__actions .btn { flex: 1 1 160px; }

/* ---------- arkusz: kadr w ramie z osiami konstrukcyjnymi ---------- */
/* Na telefonie bez osi (kadr na pełną szerokość) — osie z numerami wracają od tabletu (621 px). */
.sheet { --axis: 0px; position: relative; padding: var(--axis) 0 0 var(--axis); }
/* width: 100% — inaczej max-height (komputer) zwęża kadr przez aspect-ratio i rama rozjeżdża się z osiami. */
.sheet__frame { position: relative; width: 100%; aspect-ratio: 4 / 3; border: 1px solid var(--line-strong); background: var(--paper-2); }
.hero__slides { position: absolute; inset: 0; overflow: hidden; }
.hero__slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1s ease; }
.hero__slide.is-active { opacity: 1; z-index: 1; }
.hero__slide .stage { height: 100%; aspect-ratio: auto; max-height: none; border: 0; }
.stage.is-animated.is-slow .stage__reveal,
.stage.is-animated.is-slow .stage__plan { transition-duration: 1.6s; transition-timing-function: cubic-bezier(0.65, 0, 0.35, 1); }
.stage.is-animated.is-slow .stage__seam { transition-duration: 1.6s, 0.3s; transition-timing-function: cubic-bezier(0.65, 0, 0.35, 1), ease; }

/* Osie: kółka z numerami nad ramą (1–5) i literami z boku (A–B), z przerywaną kreską do ramy. */
.sheet__axes { position: absolute; display: flex; pointer-events: none; }
.sheet__axes--top { left: calc(var(--axis) - 10px); right: -10px; top: 0; height: var(--axis); justify-content: space-between; }
/* Boczne osie siedzą w kadrze (right: 100%), więc idą za jego wysokością, nie za tabliczką pod nim. */
.sheet__axes--left { top: 0; bottom: 0; right: calc(100% + 1px); width: var(--axis); flex-direction: column; justify-content: space-evenly; }
.sheet__axes i { position: relative; display: block; width: 20px; height: 20px; font-style: normal; }
.sheet__axes b {
    display: grid; place-items: center; width: 20px; height: 20px; border: 1px solid var(--line-strong); border-radius: 50%;
    background: var(--paper); font-family: var(--mono); font-size: 10px; font-weight: 400; color: var(--muted);
}
.sheet__axes i::after { content: ""; position: absolute; border: 0 dashed var(--line-strong); }
.sheet__axes--top i::after { left: 50%; top: 20px; height: calc(var(--axis) - 20px); border-left-width: 1px; }
.sheet__axes--left i::after { top: 50%; left: 20px; width: calc(var(--axis) - 20px); border-top-width: 1px; }
/* Osie kreślą się raz, kółko po kółku, gdy arkusz wjedzie w kadr. */
.js-animations .sheet .sheet__axes i { opacity: 0; transform: scale(0.6); transition: opacity 0.5s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1); }
.js-animations .sheet.is-in .sheet__axes i { opacity: 1; transform: none; }
/* Wejście przejściem między stronami (animations.css → vt-entry): osie stoją narysowane od pierwszej klatki. */
.vt-entry.js-animations .sheet .sheet__axes i { opacity: 1; transform: none; transition: none; }
.sheet__axes i:nth-child(2) { transition-delay: 0.08s; }
.sheet__axes i:nth-child(3) { transition-delay: 0.16s; }
.sheet__axes i:nth-child(4) { transition-delay: 0.24s; }
.sheet__axes i:nth-child(5) { transition-delay: 0.32s; }

/* Celownik CAD nad kadrem (js/crosshair.js, tylko z myszą): linie za kursorem, opis przecięcia osi,
   najbliższe osie na ramie podświetlone. Linie i opis na własnych warstwach — ruch bez przerysowywania zdjęcia. */
.crosshair { position: absolute; inset: 0; z-index: 2; overflow: hidden; pointer-events: none; opacity: 0; transition: opacity 0.25s ease; }
.crosshair.is-on { opacity: 1; }
.crosshair__x, .crosshair__y, .crosshair__label { position: absolute; left: 0; top: 0; will-change: transform; }
.crosshair__x, .crosshair__y { background: rgba(255, 255, 255, 0.85); box-shadow: 0 0 0 0.5px rgba(43, 47, 51, 0.3); }
.crosshair__x { bottom: 0; width: 1px; }
.crosshair__y { right: 0; height: 1px; }
.crosshair__label {
    padding: 3px 6px; background: var(--ink-strong); color: #fff;
    font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em;
}
.sheet__axes b { transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease; }
.sheet__axes i.is-near b { background: var(--ink-strong); border-color: var(--ink-strong); color: #fff; }
.sheet__axes i.is-near::after { border-style: solid; border-color: var(--ink-strong); }

/* ---------- tabliczka rysunkowa ---------- */
.titleblock { position: relative; background: #fff; border: 1px solid var(--line-strong); border-top: 0; }
.titleblock__progress { position: absolute; left: 0; right: 0; top: -1px; height: 2px; overflow: hidden; }
.titleblock__progress i { display: block; height: 100%; background: var(--ink-strong); transform: scaleX(0); transform-origin: left; }
.titleblock__progress i.is-running { animation: titleblock-progress var(--slide-ms, 7000ms) linear forwards; }
.titleblock__progress.is-paused i { animation-play-state: paused; }
@keyframes titleblock-progress { to { transform: scaleX(1); } }
/* Jak prawdziwa tabliczka: 4 kolumny — projekt / lokalizacja | kategoria / widok | arkusz. */
.titleblock__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; margin: 0; background: var(--line); }
.titleblock__cell { grid-column: span 2; padding: 8px 10px; background: #fff; }
.titleblock__cell--project { grid-column: span 4; padding-right: 96px; }
.titleblock__cell--view { grid-column: span 3; }
.titleblock__cell--sheet { grid-column: span 1; }
.titleblock dt { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.titleblock dd { margin: 3px 0 0; font-size: 13px; color: var(--ink-strong); }
.hero__project { display: inline; min-height: 32px; font-family: var(--serif); font-size: 19px; line-height: 1.2; }
.segmented { display: inline-flex; border: 1px solid var(--ink-strong); }
.segmented button {
    min-height: 34px; padding: 6px 10px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--ink-strong); transition: background-color 0.2s ease, color 0.2s ease;
}
.segmented button[aria-pressed="true"] { background: var(--ink-strong); color: #fff; }
.titleblock__pause {
    position: absolute; top: 8px; right: 10px; z-index: 1; min-height: 32px; padding-inline: 4px;
    font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted);
}
.titleblock__pause[aria-pressed="true"] { color: var(--ink-strong); }

@media (max-width: 620px) {
    .sheet__axes { display: none; }
}
@media (min-width: 621px) {
    .hero__actions .btn { flex: 0 0 auto; }
    .sheet { --axis: 26px; }
    .sheet__frame { aspect-ratio: 16 / 9; }
}
@media (min-width: 900px) {
    .hero {
        grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); align-items: center;
        gap: clamp(32px, 4.5vw, 72px); padding-block: clamp(24px, 3vw, 44px) 0;
    }
    .hero__head { gap: 26px; }
    .hero__title { font-size: clamp(56px, 5.4vw, 88px); margin-top: 14px; }
    .sheet { --axis: 30px; }
    /* Kadr + tabliczka pod nim mieszczą się na pierwszym ekranie także na laptopie 1366×768. */
    .sheet__frame { aspect-ratio: 16 / 10; max-height: max(280px, calc(100svh - 330px)); }
    .titleblock dd { font-size: 14px; }
    .hero__project { font-size: 21px; }
}
@media (prefers-reduced-motion: reduce) {
    .hero__slide { transition: none; }
    .titleblock__progress { display: none; }
}