/* ==========================================================================
   Galerie Lumen — Page-Specific Styles
   Hero, Masonry, Spotlight, FAQ, Keyframes
   ========================================================================== */

/* ==========================================================================
   HOME — HERO
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: calc(var(--gl-nav-height) + 60px) 0 100px;
}

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero__bg-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 70% 30%, rgba(139, 126, 200, 0.06) 0%, transparent 70%),
        radial-gradient(ellipse 50% 80% at 20% 80%, rgba(200, 168, 130, 0.04) 0%, transparent 60%),
        linear-gradient(180deg, var(--gl-bg-deep) 0%, var(--gl-bg) 100%);
}

.hero__spotlight {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    pointer-events: none;
    animation: hero-spotlight 12s ease-in-out infinite;
}

.hero__spotlight--1 {
    top: 5%;
    right: 10%;
    background: radial-gradient(circle, rgba(139, 126, 200, 0.08) 0%, transparent 70%);
    filter: blur(60px);
}

.hero__spotlight--2 {
    bottom: 0;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(200, 168, 130, 0.06) 0%, transparent 70%);
    filter: blur(40px);
    animation-delay: -6s;
    animation-duration: 15s;
}

@keyframes hero-spotlight {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 1; }
    33% { transform: translate(20px, -15px) scale(1.05); opacity: 0.8; }
    66% { transform: translate(-15px, 10px) scale(0.95); opacity: 1; }
}

.hero__content {
    position: relative;
    z-index: 2;
}

.hero__tagline {
    font-family: var(--gl-font-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gl-accent);
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.hero__tagline::before {
    content: '';
    width: 40px;
    height: 1px;
    background: var(--gl-accent);
}

.hero__title {
    font-family: var(--gl-font-display);
    font-size: clamp(48px, 8vw, 100px);
    font-weight: 400;
    line-height: 0.95;
    letter-spacing: -0.03em;
    color: var(--gl-text);
    margin-bottom: 28px;
}

.hero__title em {
    display: block;
    font-family: var(--gl-font-display);
    font-style: italic;
    color: var(--gl-accent);
}

.hero__subtitle {
    font-family: var(--gl-font-heading);
    font-size: clamp(18px, 2vw, 22px);
    font-weight: 300;
    color: var(--gl-text-muted);
    max-width: 480px;
    line-height: 1.6;
    margin-bottom: 48px;
}

.hero__actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero__scroll {
    position: absolute;
    bottom: 40px;
    left: 40px;
    display: flex;
    align-items: center;
    gap: 16px;
    font-family: var(--gl-font-mono);
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gl-text-faint);
    z-index: 2;
}

.hero__scroll-line {
    width: 48px;
    height: 1px;
    background: var(--gl-text-faint);
    position: relative;
    overflow: hidden;
}

.hero__scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gl-accent);
    animation: scroll-pulse 2.5s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0% { left: -100%; }
    50% { left: 0; }
    100% { left: 100%; }
}

/* --- Current Exhibition Feature --- */
.current-exhibition {
    padding: var(--gl-section-pad) 0;
    border-top: 1px solid var(--gl-border);
}

.current-exhibition__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.current-exhibition__visual {
    aspect-ratio: 4 / 5;
    background: linear-gradient(135deg, var(--gl-bg-surface), var(--gl-bg-card));
    border: 1px solid var(--gl-border);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.current-exhibition__visual-text {
    font-family: var(--gl-font-display);
    font-size: 80px;
    color: var(--gl-text-faint);
    opacity: 0.15;
}

.current-exhibition__visual::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(139, 126, 200, 0.08), transparent 70%);
    pointer-events: none;
}

.current-exhibition__info {
    max-width: 480px;
}

.current-exhibition__dates {
    font-family: var(--gl-font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--gl-warm);
    margin-top: 16px;
}

/* --- Upcoming Strip --- */
.upcoming-strip {
    padding: 80px 0;
    border-top: 1px solid var(--gl-border);
    background: var(--gl-bg);
}

.upcoming-strip__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.upcoming-item {
    padding: 28px;
    background: var(--gl-bg-card);
    border: 1px solid var(--gl-border);
    transition: border-color var(--gl-transition);
}

.upcoming-item:hover {
    border-color: var(--gl-border-accent);
}

.upcoming-item__date {
    font-family: var(--gl-font-mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    color: var(--gl-warm);
    text-transform: uppercase;
    margin-bottom: 10px;
}

.upcoming-item__title {
    font-family: var(--gl-font-heading);
    font-size: 20px;
    font-weight: 400;
    color: var(--gl-text);
    margin-bottom: 6px;
}

.upcoming-item__artist {
    font-family: var(--gl-font-heading);
    font-size: 14px;
    font-weight: 300;
    color: var(--gl-accent);
    font-style: italic;
}

/* --- Artist Spotlight Grid --- */
.artist-spotlight {
    padding: var(--gl-section-pad) 0;
    border-top: 1px solid var(--gl-border);
}

.artist-spotlight__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 48px;
}

/* --- Visit CTA --- */
.visit-cta {
    padding: 80px 0;
    border-top: 1px solid var(--gl-border);
    background: var(--gl-bg);
    text-align: center;
}

.visit-cta__title {
    font-family: var(--gl-font-display);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 400;
    color: var(--gl-text);
    margin-bottom: 16px;
}

.visit-cta__text {
    font-family: var(--gl-font-heading);
    font-size: 18px;
    font-weight: 300;
    color: var(--gl-text-muted);
    margin-bottom: 36px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* ==========================================================================
   COLLECTION — MASONRY GRID
   ========================================================================== */
.masonry {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 10px;
    gap: 24px;
}

.masonry__item--tall {
    grid-row: span 38;
}

.masonry__item--medium {
    grid-row: span 32;
}

.masonry__item--short {
    grid-row: span 26;
}

.masonry__item--wide {
    grid-column: span 2;
    grid-row: span 28;
}

.masonry__item--wide .artwork-card__image {
    aspect-ratio: auto;
    height: 100%;
}

.masonry__item .artwork-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.masonry__item .artwork-card__image {
    flex: 1;
    aspect-ratio: auto;
}

/* ==========================================================================
   ABOUT PAGE
   ========================================================================== */
.about-hero {
    padding: calc(var(--gl-nav-height) + 80px) 0 80px;
    text-align: center;
}

.about-hero__title {
    font-family: var(--gl-font-display);
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--gl-text);
    margin-bottom: 20px;
}

.about-hero__subtitle {
    font-family: var(--gl-font-heading);
    font-size: 20px;
    font-weight: 300;
    font-style: italic;
    color: var(--gl-text-muted);
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.6;
}

.about-story {
    padding: var(--gl-section-pad) 0;
    border-top: 1px solid var(--gl-border);
}

.about-story__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.about-story__text {
    font-family: var(--gl-font-heading);
    font-size: 18px;
    font-weight: 300;
    color: var(--gl-text-secondary);
    line-height: 1.8;
}

.about-story__text + .about-story__text {
    margin-top: 24px;
}

.manifesto {
    padding: 60px;
    background: var(--gl-bg-card);
    border: 1px solid var(--gl-border);
    border-left: 3px solid var(--gl-accent);
}

.manifesto__title {
    font-family: var(--gl-font-display);
    font-size: 28px;
    font-weight: 400;
    color: var(--gl-text);
    margin-bottom: 20px;
}

.manifesto__text {
    font-family: var(--gl-font-heading);
    font-size: 17px;
    font-weight: 300;
    font-style: italic;
    color: var(--gl-text-muted);
    line-height: 1.8;
}

/* ==========================================================================
   VISIT PAGE — FAQ ACCORDION (CSS-only)
   ========================================================================== */
.faq {
    padding: var(--gl-section-pad) 0;
    border-top: 1px solid var(--gl-border);
}

.faq__list {
    max-width: 720px;
}

.faq__item {
    border-bottom: 1px solid var(--gl-border);
}

.faq__item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0;
    font-family: var(--gl-font-heading);
    font-size: 18px;
    font-weight: 400;
    color: var(--gl-text);
    cursor: pointer;
    list-style: none;
    transition: color var(--gl-transition);
}

.faq__item summary::-webkit-details-marker {
    display: none;
}

.faq__item summary::after {
    content: '+';
    font-family: var(--gl-font-body);
    font-size: 22px;
    font-weight: 300;
    color: var(--gl-accent);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 20px;
}

.faq__item[open] summary::after {
    transform: rotate(45deg);
}

.faq__item summary:hover {
    color: var(--gl-accent);
}

.faq__answer {
    padding: 0 0 24px;
    font-size: 15px;
    color: var(--gl-text-muted);
    line-height: 1.7;
    max-width: 600px;
}

/* --- Visit Info Grid --- */
.visit-info {
    padding: calc(var(--gl-nav-height) + 80px) 0 80px;
}

.visit-info__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 48px;
}

.info-block {
    padding: 36px;
    background: var(--gl-bg-card);
    border: 1px solid var(--gl-border);
}

.info-block__title {
    font-family: var(--gl-font-display);
    font-size: 20px;
    font-weight: 400;
    color: var(--gl-text);
    margin-bottom: 20px;
}

.info-block__row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--gl-border);
    font-size: 14px;
}

.info-block__row:last-child {
    border-bottom: none;
}

.info-block__label {
    color: var(--gl-text-muted);
}

.info-block__value {
    color: var(--gl-text);
    font-weight: 500;
}

.info-block__value--accent {
    color: var(--gl-accent);
}

/* --- Map Placeholder --- */
.map-placeholder {
    width: 100%;
    height: 360px;
    background: var(--gl-bg-surface);
    border: 1px solid var(--gl-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 48px;
}

.map-placeholder__icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--gl-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gl-text-dim);
}

.map-placeholder__text {
    font-family: var(--gl-font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--gl-text-faint);
    text-transform: uppercase;
}

.map-placeholder__address {
    font-family: var(--gl-font-heading);
    font-size: 16px;
    font-weight: 300;
    color: var(--gl-text-muted);
    font-style: italic;
}

/* --- Contact Form Section --- */
.contact-section {
    padding: var(--gl-section-pad) 0;
    border-top: 1px solid var(--gl-border);
}

.contact-section__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info__item {
    margin-bottom: 28px;
}

.contact-info__label {
    font-family: var(--gl-font-mono);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gl-accent);
    margin-bottom: 8px;
}

.contact-info__value {
    font-family: var(--gl-font-heading);
    font-size: 18px;
    font-weight: 300;
    color: var(--gl-text);
    line-height: 1.6;
}

/* ==========================================================================
   PAGE HERO (Exhibitions, Collection, Visit)
   ========================================================================== */
.page-hero {
    padding: calc(var(--gl-nav-height) + 80px) 0 60px;
    position: relative;
}

.page-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gl-border);
}

.page-hero__label {
    font-family: var(--gl-font-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gl-accent);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-hero__label::before {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--gl-accent);
}

.page-hero__title {
    font-family: var(--gl-font-display);
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--gl-text);
    margin-bottom: 16px;
}

.page-hero__subtitle {
    font-family: var(--gl-font-heading);
    font-size: 18px;
    font-weight: 300;
    color: var(--gl-text-muted);
    max-width: 520px;
    line-height: 1.6;
}

/* ==========================================================================
   KEYFRAMES
   ========================================================================== */
@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slide-up {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.text-glow {
    animation: glow-pulse 3s ease-in-out infinite;
}

/* ==========================================================================
   RESPONSIVE — PAGE-SPECIFIC
   ========================================================================== */
@media (max-width: 1024px) {
    .masonry {
        grid-template-columns: repeat(2, 1fr);
    }

    .masonry__item--wide {
        grid-column: span 1;
    }

    .artist-spotlight__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .upcoming-strip__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .current-exhibition__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-story__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-section__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .visit-info__grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: calc(var(--gl-nav-height) + 40px) 0 80px;
    }

    .hero__scroll {
        display: none;
    }

    .hero__actions {
        flex-direction: column;
    }

    .masonry {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
    }

    .masonry__item--tall,
    .masonry__item--medium,
    .masonry__item--short,
    .masonry__item--wide {
        grid-row: auto;
        grid-column: auto;
    }

    .masonry__item .artwork-card__image {
        aspect-ratio: 3 / 4;
    }

    .artist-spotlight__grid {
        grid-template-columns: 1fr;
    }

    .upcoming-strip__grid {
        grid-template-columns: 1fr;
    }

    .manifesto {
        padding: 36px;
    }

    .page-hero {
        padding: calc(var(--gl-nav-height) + 40px) 0 40px;
    }
}