/* ============================================================
   ATELIER — Cinematische Werk-Reise (Desktop) + 2D-Fallback
   Rainer Günter Galerie
   ============================================================ */

/* No-JS / keine Reise: Reveal-Elemente nicht verstecken (Fallback bleibt sichtbar) */
html:not(.js) .reveal {
    opacity: 1;
    transform: none;
}

.atelier {
    position: relative;
}

/* ---------- Eingang / Intro ---------- */
.atelier__intro {
    max-width: 780px;
    margin: var(--space-2xl) auto var(--space-xl);
    padding: 0 var(--space-m);
    text-align: center;
}

.atelier__intro .label { display: block; margin-bottom: var(--space-m); }

.atelier__intro h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 300;
    line-height: 1.2;
    margin-bottom: var(--space-l);
}

.atelier__lead {
    font-size: clamp(1.05rem, 1.8vw, 1.2rem);
    color: var(--mid-gray);
    margin-bottom: var(--space-l);
}

/* ---------- Bühne: heller Galerie-Raum + Karten-Stapel ---------- */
.atelier__scene {
    position: relative;
    width: 100%;
    --gx: 50;   /* Cursor-Position (0–100) für den Glanz */
    --gy: 50;
}

.atelier__sticky {
    position: relative;        /* GSAP pinnt dieses Element */
    height: 100vh;
    height: 100svh;
    width: 100%;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr minmax(300px, 34%);
    align-items: center;
    gap: clamp(2rem, 5vw, 6rem);
    padding: 0 clamp(2.5rem, 7vw, 8rem);
}

/* Helle, warme Museumswand — passt zum Rest der Seite */
.atelier__stagebg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(120% 95% at 50% 32%, #f7f0e2 0%, var(--cream) 55%, #e8ddcb 100%);
}
.atelier__stagebg::after {     /* sehr dezenter, dem Cursor folgender Lichtschein */
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(38% 42% at calc(var(--gx) * 1%) calc(var(--gy) * 1%),
                rgba(255, 248, 233, 0.55) 0%, rgba(255, 248, 233, 0) 70%);
    mix-blend-mode: soft-light;
    transition: opacity 0.4s var(--ease-out);
}

/* ---------- Karten-Deck (gestapelte Leinwände) ---------- */
.atelier__deck {
    position: relative;
    z-index: 1;
    justify-self: center;
    width: 100%;
    max-width: 560px;
    aspect-ratio: 5 / 4;
}

.atelier__card {
    position: absolute;
    inset: 0;
    transform-origin: center 70%;
    will-change: transform, opacity;
    backface-visibility: hidden;
}

/* gerahmte Leinwand: heller Karton + Passepartout + Schlagschatten */
.atelier__card-tilt {
    position: absolute;
    inset: 0;
    display: flex;
    padding: clamp(0.9rem, 1.6vw, 1.5rem);
    background: #fbf9f5;
    border: 1px solid var(--border);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.7) inset,
        0 34px 60px -28px rgba(40, 32, 18, 0.55),
        0 12px 28px -18px rgba(40, 32, 18, 0.4);
    will-change: transform;
    overflow: hidden;
    cursor: pointer;
}

.atelier__card-tilt img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    will-change: transform;
}

/* Lichtreflex auf der Leinwand, folgt dem Cursor */
.atelier__glare {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0;
    background: radial-gradient(circle at calc(var(--gx) * 1%) calc(var(--gy) * 1%),
                rgba(255, 252, 244, 0.7) 0%, rgba(255, 252, 244, 0) 42%);
    mix-blend-mode: screen;
    will-change: opacity;
}

/* ---------- Beschriftung (rechte Spalte, wechselt mit der Karte) ---------- */
.atelier__captions {
    position: relative;
    z-index: 2;
    align-self: center;
    min-height: 48vh;
}

.atelier__text {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    will-change: transform, opacity;
}

.atelier__num {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.32em;
    color: var(--gold-dark);
    margin-bottom: var(--space-m);
}
.atelier__num-total {
    color: var(--mid-gray);
    letter-spacing: 0.2em;
}

.atelier__title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 4.4vw, 4rem);
    font-weight: 300;
    line-height: 1.04;
    letter-spacing: -0.01em;
    color: var(--ink);
    margin-bottom: var(--space-m);
}

.atelier__meta {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    color: var(--mid-gray);
    margin-bottom: var(--space-l);
}

.atelier__link {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.66rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gold-dark);
    padding-bottom: 0.3rem;
    border-bottom: 1px solid rgba(196, 161, 101, 0.45);
    transition: color var(--transition), border-color var(--transition);
}
.atelier__link:hover {
    color: var(--gold);
    border-color: var(--gold);
}

/* Scroll-Hinweis */
.atelier__hint {
    position: absolute;
    bottom: var(--space-l);
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    font-family: var(--font-sans);
    font-size: 0.62rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--mid-gray);
    transition: opacity 0.5s var(--ease-out);
}
.atelier__hint::after {
    content: "";
    display: block;
    width: 1px;
    height: 26px;
    margin: 0.6rem auto 0;
    background: linear-gradient(var(--mid-gray), transparent);
}

/* ---------- 2D-Fallback (Default) ---------- */
.atelier__fallback {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-m);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

/* Visuell ausgeblendet (3D aktiv), aber im DOM/A11y-Baum für SR & SEO */
.atelier__fallback.is-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
    margin: 0;
    padding: 0;
}

.atelier-work { display: block; }

.atelier-work__img-wrap {
    overflow: hidden;
    background: var(--cream);
    border: 1px solid var(--border);
    aspect-ratio: 4 / 3;
}

.atelier-work__img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s var(--ease-out);
}

.atelier-work:hover .atelier-work__img-wrap img { transform: scale(1.04); }

.atelier-work__info { padding-top: var(--space-m); }

.atelier-work__info h3 {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 2.4vw, 1.9rem);
    font-weight: 400;
    margin-bottom: 0.2rem;
}

.atelier-work__meta {
    font-family: var(--font-display);
    font-style: italic;
    color: var(--mid-gray);
    margin-bottom: var(--space-s);
}

.atelier-work__cta {
    font-family: var(--font-sans);
    font-size: 0.66rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gold-dark);
    transition: color var(--transition);
}

.atelier-work:hover .atelier-work__cta { color: var(--gold); }

/* ---------- CTA unter dem Atelier ---------- */
.atelier__cta {
    text-align: center;
    padding: var(--space-2xl) var(--space-m) var(--space-xl);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .atelier__intro { margin: var(--space-xl) auto var(--space-l); }
    .atelier__fallback {
        grid-template-columns: 1fr;
        gap: var(--space-l);
    }
    .atelier__cta { padding: var(--space-xl) var(--space-m); }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .atelier__fallback { gap: var(--space-l); }
}

@media (prefers-reduced-motion: reduce) {
    /* Bei reduzierter Bewegung lädt die Karten-Reise gar nicht erst (siehe atelier.js);
       es bleibt das statische 2D-Grid. */
    .atelier-work__img-wrap img { transition: none; }
}