/* ============================================
   MUSEUM ARCHIVE - WWII Section Styles
   Dark, dignified exhibition aesthetic
   ============================================ */

/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
    /* Museum Dark Palette */
    --museum-black: #0a0a0a;
    --museum-charcoal: #1a1a1a;
    --museum-slate: #2a2a2a;
    --museum-gray: #3a3a3a;
    --museum-gray-light: #5a5a5a;

    /* Accent Colors */
    --museum-cream: #f5f2eb;
    --museum-cream-muted: #d4cfc4;
    --museum-sepia: #c4a77d;
    --museum-bronze: #9a7b4f;
    --museum-gold: #c9a962;

    /* Military Accents */
    --military-olive: #4a5240;
    --military-khaki: #8b7355;

    /* Document Colors */
    --paper-aged: #e8dcc8;
    --paper-yellow: #f4ecd8;
    --ink-faded: #3a3530;

    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Source Serif 4', Georgia, serif;
    --font-mono: 'Courier Prime', 'Courier New', monospace;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;

    /* Transitions */
    --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-dramatic: cubic-bezier(0.23, 1, 0.32, 1);
}

/* ============================================
   BASE STYLES
   ============================================ */
.museum-page {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--museum-cream);
    background-color: var(--museum-black);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

.museum-page a {
    color: var(--museum-sepia);
    text-decoration: none;
    transition: color 0.3s var(--ease-out);
}

.museum-page a:hover {
    color: var(--museum-gold);
}

/* ============================================
   MUSEUM HEADER
   ============================================ */
.museum-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: linear-gradient(180deg, rgba(10, 10, 10, 0.98) 0%, rgba(10, 10, 10, 0.9) 100%);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(196, 167, 125, 0.1);
}

.museum-header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-sm) var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.museum-logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--museum-cream);
}

.museum-logo span {
    color: var(--museum-sepia);
    font-weight: 400;
}

.museum-nav {
    display: none;
}

.museum-nav-list {
    list-style: none;
    display: flex;
    gap: var(--space-lg);
}

.museum-nav-link {
    font-family: var(--font-display);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--museum-cream-muted);
    position: relative;
}

.museum-nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--museum-sepia);
    transition: width 0.3s var(--ease-out);
}

.museum-nav-link:hover {
    color: var(--museum-cream);
}

.museum-nav-link:hover::after {
    width: 100%;
}

.museum-back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 0.8125rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--museum-cream-muted);
}

.museum-back-link svg {
    width: 16px;
    height: 16px;
}

.museum-back-link:hover {
    color: var(--museum-cream);
}

@media (min-width: 768px) {
    .museum-nav {
        display: block;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */
.museum-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(60px + var(--space-2xl)) var(--space-md) var(--space-2xl);
    background: var(--museum-black);
    overflow: hidden;
}

/* Spotlight effect */
.museum-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 100%;
    background: radial-gradient(
        ellipse 50% 80% at 50% 20%,
        rgba(196, 167, 125, 0.08) 0%,
        transparent 60%
    );
    pointer-events: none;
}

/* Film grain texture */
.museum-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.04;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

.museum-hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    animation: fadeUp 1.2s var(--ease-dramatic) both;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.museum-hero-emblem {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    opacity: 0.6;
}

.museum-hero-emblem svg {
    width: 100%;
    height: 100%;
    fill: var(--museum-sepia);
}

.museum-hero-pretitle {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--museum-sepia);
    margin-bottom: var(--space-sm);
}

.museum-hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 400;
    line-height: 1.1;
    color: var(--museum-cream);
    margin-bottom: var(--space-md);
    letter-spacing: 0.02em;
}

.museum-hero-title em {
    font-style: italic;
    color: var(--museum-sepia);
}

.museum-hero-subtitle {
    font-family: var(--font-body);
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--museum-cream-muted);
    max-width: 600px;
    margin: 0 auto var(--space-lg);
    font-weight: 300;
}

.museum-hero-dates {
    font-family: var(--font-display);
    font-size: 1.125rem;
    color: var(--museum-bronze);
    letter-spacing: 0.2em;
}

.museum-hero-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.museum-hero-divider::before,
.museum-hero-divider::after {
    content: '';
    width: 80px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--museum-sepia), transparent);
}

.museum-hero-divider svg {
    width: 20px;
    height: 20px;
    color: var(--museum-sepia);
}

/* ============================================
   EXHIBIT SECTIONS
   ============================================ */
.museum-section {
    position: relative;
    padding: var(--space-3xl) var(--space-md);
}

.museum-section--dark {
    background: var(--museum-charcoal);
}

.museum-section--darker {
    background: var(--museum-black);
}

.museum-section-inner {
    max-width: 1200px;
    margin: 0 auto;
}

/* Section Headers */
.museum-section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.museum-section-number {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--museum-bronze);
    margin-bottom: var(--space-xs);
}

.museum-section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 400;
    color: var(--museum-cream);
    margin-bottom: var(--space-sm);
}

.museum-section-subtitle {
    font-size: 1rem;
    color: var(--museum-cream-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   EXHIBIT CARDS (Documents & Photos)
   ============================================ */
.exhibit-grid {
    display: grid;
    gap: var(--space-lg);
}

@media (min-width: 640px) {
    .exhibit-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .exhibit-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.exhibit-card {
    position: relative;
    background: var(--museum-slate);
    border: 1px solid rgba(196, 167, 125, 0.1);
    overflow: hidden;
    transition: all 0.5s var(--ease-dramatic);
}

.exhibit-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        transparent 50%,
        rgba(10, 10, 10, 0.8) 100%
    );
    z-index: 1;
    opacity: 0;
    transition: opacity 0.4s var(--ease-out);
}

.exhibit-card:hover {
    transform: translateY(-8px);
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.4),
        0 0 80px rgba(196, 167, 125, 0.08);
    border-color: rgba(196, 167, 125, 0.2);
}

.exhibit-card:hover::before {
    opacity: 1;
}

.exhibit-card-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--museum-gray);
}

.exhibit-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: sepia(20%) saturate(80%) brightness(90%);
    transition: all 0.6s var(--ease-out);
}

.exhibit-card:hover .exhibit-card-image img {
    transform: scale(1.05);
    filter: sepia(10%) saturate(90%) brightness(95%);
}

.exhibit-card-content {
    position: relative;
    z-index: 2;
    padding: var(--space-md);
}

.exhibit-card-label {
    font-family: var(--font-display);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--museum-sepia);
    margin-bottom: var(--space-xs);
}

.exhibit-card-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--museum-cream);
    margin-bottom: var(--space-xs);
    line-height: 1.3;
}

.exhibit-card-description {
    font-size: 0.875rem;
    color: var(--museum-cream-muted);
    line-height: 1.6;
}

.exhibit-card-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--museum-bronze);
    margin-top: var(--space-sm);
}

/* Featured Exhibit (larger) */
.exhibit-card--featured {
    grid-column: 1 / -1;
}

@media (min-width: 768px) {
    .exhibit-card--featured {
        display: grid;
        grid-template-columns: 1.2fr 1fr;
    }

    .exhibit-card--featured .exhibit-card-image {
        aspect-ratio: auto;
        min-height: 400px;
    }

    .exhibit-card--featured .exhibit-card-content {
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: var(--space-xl);
    }

    .exhibit-card--featured .exhibit-card-title {
        font-size: 1.75rem;
    }

    .exhibit-card--featured .exhibit-card-description {
        font-size: 1rem;
    }
}

/* ============================================
   TIMELINE
   ============================================ */
.museum-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: var(--space-xl);
}

/* Vertical line */
.museum-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(
        180deg,
        transparent,
        var(--museum-sepia) 10%,
        var(--museum-sepia) 90%,
        transparent
    );
}

.timeline-item {
    position: relative;
    padding-bottom: var(--space-xl);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

/* Timeline dot */
.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(-1 * var(--space-xl) - 5px);
    top: 8px;
    width: 12px;
    height: 12px;
    background: var(--museum-black);
    border: 2px solid var(--museum-sepia);
    border-radius: 50%;
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--museum-sepia);
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xs);
}

.timeline-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--museum-cream);
    margin-bottom: var(--space-xs);
}

.timeline-description {
    color: var(--museum-cream-muted);
    font-size: 0.9375rem;
}

.timeline-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    margin-top: var(--space-sm);
    font-family: var(--font-display);
    font-size: 0.875rem;
    color: var(--museum-sepia);
}

.timeline-link svg {
    width: 14px;
    height: 14px;
    transition: transform 0.3s var(--ease-out);
}

.timeline-link:hover svg {
    transform: translateX(4px);
}

/* ============================================
   DOCUMENT VIEWER
   ============================================ */
.document-frame {
    background: var(--paper-aged);
    padding: var(--space-sm);
    box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.3),
        inset 0 0 60px rgba(0, 0, 0, 0.1);
    position: relative;
}

.document-frame::before {
    content: '';
    position: absolute;
    inset: 8px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    pointer-events: none;
}

.document-frame img {
    width: 100%;
    height: auto;
    filter: sepia(15%) contrast(95%);
}

/* ============================================
   QUOTE/TESTIMONIAL
   ============================================ */
.museum-quote {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    padding: var(--space-xl) 0;
}

.museum-quote blockquote {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-style: italic;
    font-weight: 400;
    color: var(--museum-cream);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.museum-quote cite {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-style: normal;
    color: var(--museum-sepia);
}

/* ============================================
   MUSEUM GALLERY GRID
   ============================================ */
.museum-gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xs);
}

@media (min-width: 640px) {
    .museum-gallery-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-sm);
    }
}

@media (min-width: 1024px) {
    .museum-gallery-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.museum-gallery-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--museum-slate);
    cursor: pointer;
}

.museum-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: sepia(25%) saturate(70%) brightness(85%);
    transition: all 0.5s var(--ease-out);
}

.museum-gallery-item:hover img {
    filter: sepia(5%) saturate(90%) brightness(100%);
    transform: scale(1.05);
}

.museum-gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid rgba(196, 167, 125, 0);
    transition: border-color 0.3s var(--ease-out);
}

.museum-gallery-item:hover::after {
    border-color: rgba(196, 167, 125, 0.3);
}

/* ============================================
   MUSEUM FOOTER
   ============================================ */
.museum-footer {
    background: var(--museum-black);
    border-top: 1px solid rgba(196, 167, 125, 0.1);
    padding: var(--space-xl) var(--space-md);
}

.museum-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.museum-footer-dedication {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-style: italic;
    color: var(--museum-sepia);
    margin-bottom: var(--space-md);
}

.museum-footer-nav {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
    margin-bottom: var(--space-md);
}

.museum-footer-nav a {
    font-family: var(--font-display);
    font-size: 0.875rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--museum-cream-muted);
}

.museum-footer-nav a:hover {
    color: var(--museum-cream);
}

.museum-footer-copyright {
    font-size: 0.8125rem;
    color: var(--museum-gray-light);
}

/* ============================================
   MUSEUM LIGHTBOX OVERRIDES
   ============================================ */
.museum-page .heirloom-lightbox .lightbox-overlay {
    background: rgba(10, 10, 10, 0.97);
}

.museum-page .heirloom-lightbox .lightbox-close,
.museum-page .heirloom-lightbox .lightbox-nav {
    border-color: rgba(196, 167, 125, 0.2);
}

.museum-page .heirloom-lightbox .lightbox-close:hover,
.museum-page .heirloom-lightbox .lightbox-nav:hover:not(.is-disabled) {
    background: rgba(196, 167, 125, 0.1);
    border-color: rgba(196, 167, 125, 0.4);
}

.museum-page .heirloom-lightbox .lightbox-counter {
    color: var(--museum-sepia);
}

.museum-page .heirloom-lightbox .loader-spinner {
    border-color: rgba(196, 167, 125, 0.2);
    border-top-color: var(--museum-sepia);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (min-width: 768px) {
    .museum-timeline {
        padding-left: var(--space-2xl);
    }

    .timeline-item::before {
        left: calc(-1 * var(--space-2xl) - 5px);
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */
.museum-fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-dramatic), transform 0.8s var(--ease-dramatic);
}

.museum-fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children */
.museum-stagger .museum-fade-in:nth-child(1) { transition-delay: 0s; }
.museum-stagger .museum-fade-in:nth-child(2) { transition-delay: 0.1s; }
.museum-stagger .museum-fade-in:nth-child(3) { transition-delay: 0.2s; }
.museum-stagger .museum-fade-in:nth-child(4) { transition-delay: 0.3s; }
.museum-stagger .museum-fade-in:nth-child(5) { transition-delay: 0.4s; }
.museum-stagger .museum-fade-in:nth-child(6) { transition-delay: 0.5s; }

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .museum-page {
        background: white;
        color: black;
    }

    .museum-header,
    .museum-footer {
        display: none;
    }

    .museum-hero {
        min-height: auto;
        padding: 2rem;
    }

    .museum-hero::before,
    .museum-hero::after {
        display: none;
    }

    .exhibit-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}