/* ==========================================================================
   Museum Halls — homepage sections restyled as gallery halls
   Each .hall acts as a named exhibit space within the museum corridor.
   ========================================================================== */

/* -------------------------------------------------------------------------- */
/* Base hall — shared rules for every section                                  */
/* -------------------------------------------------------------------------- */
.museum-halls {
    position: relative;
    z-index: var(--z-content);
    padding-top: 0;
}

/* Admin bar pushes fixed header down — first hall must compensate */
.admin-bar .hall--rotunda {
    padding-top: calc(var(--entablature-height) + 32px);
}

@media screen and (max-width: 782px) {
    .admin-bar .hall--rotunda {
        padding-top: calc(var(--entablature-height) + 46px);
    }
}

.hall {
    position: relative;
    z-index: var(--z-content);
    /*
     * Side gutters for colonnade columns to show through.
     * MUST mirror .museum-frame__colonnade width in museum-frame.css:
     *   ≥1400px → 260px colonnade  → max(260px, 18vw) here
     *   1400–1024px → 180px colonnade → max(180px, 14vw) here
     *   <1024px → colonnade hidden  → var(--space-6) here
     * If you change one file, change both.
     */
    padding-inline: max(260px, 18vw);
}

@media (max-width: 1399px) {
    .hall { padding-inline: max(180px, 14vw); }
}

@media (max-width: 1023px) {
    .hall { padding-inline: var(--space-6); }
}

/* Hall threshold — architectural seam between halls (archway moment) */
.hall-threshold {
    position: relative;
    height: 48px;
    pointer-events: none;
    overflow: hidden;
}

.hall-threshold__bar {
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        var(--color-gold-deep) 20%,
        var(--color-gold) 50%,
        var(--color-gold-deep) 80%,
        transparent
    );
    transform: scaleX(0);
    transform-origin: center;
    opacity: 0;
}

/* -------------------------------------------------------------------------- */
/* Hall — Rotunda (Hero)                                                        */
/* -------------------------------------------------------------------------- */
.hall--rotunda {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-obsidian);
    background-image:
        radial-gradient(ellipse 80% 60% at 50% 100%, rgba(107,106,78,0.08) 0%, transparent 70%),
        radial-gradient(ellipse 60% 50% at 50% 80%,  rgba(48,10,54,0.45)  0%, transparent 75%);
    overflow: hidden;
    padding-top: var(--entablature-height);
}

/* Oculus — overhead light gradient (domed skylight suggestion) */
.rotunda__oculus {
    position: absolute;
    top: var(--entablature-height);
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 200px;
    background: radial-gradient(
        ellipse 100% 100% at 50% 0%,
        rgba(201,168,76,0.07) 0%,
        transparent 70%
    );
    pointer-events: none;
    z-index: 1;
}

/* Bottom fade — hero dissolves into the purple corridor beyond */
.hall--rotunda::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 240px;
    background: linear-gradient(to top, var(--color-purple-abyss) 0%, transparent 100%);
    pointer-events: none;
    z-index: 2;
}

/* Hero content layer — sits above the fade */
.hall--rotunda .hero-entrance {
    position: relative;
    z-index: 3;
    text-align: center;
    width: min(560px, 80vw);
    padding: var(--space-8);
}

/* Bronze plaques for CTAs */
.hall--rotunda .btn--primary,
.hall--rotunda .btn--ghost {
    position: relative;
    overflow: hidden;
}

/* Plaque border detail */
.hall--rotunda .btn--primary::before,
.hall--rotunda .btn--ghost::before {
    content: '';
    position: absolute;
    inset: 2px;
    border: 1px solid rgba(201,168,76,0.2);
    border-radius: calc(var(--radius-base) - 1px);
    pointer-events: none;
}

/* -------------------------------------------------------------------------- */
/* Hall — Formats (Format Showcase → Hall of Formats)                          */
/* -------------------------------------------------------------------------- */
.hall--formats {
    background: linear-gradient(
        to bottom,
        var(--color-purple-abyss),
        var(--color-vault)
    );
    padding-block: var(--space-24);
    /* Greek-key border top + bottom */
    border-top: 1px solid rgba(201,168,76,0.15);
    border-bottom: 1px solid rgba(201,168,76,0.15);
}

.hall--formats .section-heading {
    text-align: center;
    display: block;
}

.hall--formats .section-heading::after {
    left: 50%;
    transform: translateX(-50%);
}

/* Format grid as museum plinths */
.format-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-8);
}

/* Plinth — marble pedestal with nameplate */
.format-card {
    display: flex;
    flex-direction: column;
    background: var(--color-vault);
    border: 1px solid var(--color-olive-deep);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition:
        transform var(--transition-base),
        box-shadow var(--transition-base);
}

/* Stepped plinth base (bottom accent) */
.format-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--color-stone-dark);
}

.format-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover), 0 0 0 1px var(--color-gold-deep);
}

.format-card__inner {
    padding: var(--space-6);
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Brass nameplate heading */
.format-card__name {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-stone-mid);
    margin-bottom: var(--space-2);
    /* Engraved look */
    text-shadow: 1px 1px 0 rgba(0,0,0,0.5), -1px -1px 0 rgba(255,255,255,0.03);
}

.format-card__desc {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
    line-height: var(--leading-snug);
    flex: 1;
}

.format-card__cta {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-purple-light);
    letter-spacing: var(--tracking-wide);
    transition: color var(--transition-fast);
}

.format-card:hover .format-card__cta { color: var(--color-gold); }

/* WUBRG color-pie top border per format */
.format-card[data-format="standard"]  { border-top: 3px solid #F0F2F4; }  /* W — white */
.format-card[data-format="pioneer"]   { border-top: 3px solid #E05030; }  /* R — red   */
.format-card[data-format="modern"]    { border-top: 3px solid #1a1a2a; box-shadow: inset 0 2px 0 #444; } /* B — black */
.format-card[data-format="commander"] {
    border-top: 3px solid transparent;
    border-image: linear-gradient(90deg, #F0F2F4, #1a90d0, #1a1a2a, #E05030, #3a8c30) 1;
}

/* -------------------------------------------------------------------------- */
/* Hall — Acquisitions (New Arrivals → New Acquisitions Display Case)          */
/* -------------------------------------------------------------------------- */
.hall--acquisitions {
    background: var(--color-vault);
    padding-block: var(--space-24);
}

/* Display case wrapper — mahogany frame with glass sheen */
.display-case {
    position: relative;
    border: 2px solid var(--color-olive-deep);
    border-radius: var(--radius-lg);
    overflow: hidden;
    padding: var(--space-8);
    background: var(--color-obsidian);
    /* Mahogany frame shadow */
    box-shadow:
        0 0 0 6px var(--color-mahogany),
        0 0 0 7px var(--color-olive-deep),
        0 20px 60px rgba(0,0,0,0.7);
}

/* Glass sheen overlay */
.display-case::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(
        to bottom,
        rgba(255,255,255,0.04) 0%,
        transparent 100%
    );
    pointer-events: none;
    z-index: 1;
}

/* Brass plaque header */
.display-case__header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-olive-deep);
    position: relative;
    z-index: 2;
}

.display-case__plaque {
    font-family: var(--font-heading);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-stone-mid);
    text-shadow: 1px 1px 0 rgba(0,0,0,0.5);
}

.display-case__plaque strong {
    display: block;
    font-size: var(--text-3xl);
    letter-spacing: var(--tracking-tight);
    color: var(--color-text-primary);
    text-shadow: none;
    font-weight: 900;
    margin-top: var(--space-1);
}

/* Shelf effect behind product rows */
.display-case .mana-card-grid {
    position: relative;
    z-index: 2;
}

/* Under-shelf lighting — warm glow beneath each row of 4 */
.display-case .mana-card-grid::before {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 5%;
    right: 5%;
    height: 20px;
    background: radial-gradient(ellipse 80% 100% at 50% 100%, rgba(201,168,76,0.08) 0%, transparent 100%);
    pointer-events: none;
}

/* -------------------------------------------------------------------------- */
/* Hall — Curator's Desk (Decklist Teaser)                                     */
/* -------------------------------------------------------------------------- */
.hall--curator {
    /* Wood-grain layered gradients */
    background:
        repeating-linear-gradient(
            92deg,
            rgba(61,43,31,0.0) 0px, rgba(61,43,31,0.0) 20px,
            rgba(0,0,0,0.06)   20px, rgba(0,0,0,0.06) 21px
        ),
        linear-gradient(
            to bottom,
            var(--color-mahogany) 0%,
            #2A1A0F 100%
        );
    padding-block: var(--space-24);
    border-top: 2px solid var(--color-olive-deep);
    border-bottom: 2px solid var(--color-olive-deep);
}

.curator-desk {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

/* Parchment letter — left side */
.desk__correspondence {
    background: var(--color-parchment);
    border-radius: var(--radius-md);
    padding: var(--space-10);
    transform: rotate(-0.4deg);
    box-shadow:
        0 4px 24px rgba(0,0,0,0.55),
        0 0 0 1px rgba(0,0,0,0.12);
    color: var(--color-obsidian);
}

.desk__correspondence .section-heading {
    color: var(--color-obsidian);
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
}

.desk__correspondence .section-heading::after {
    background: var(--color-gold-deep);
}

.desk__correspondence p {
    color: #2e2416;
    font-size: var(--text-base);
    line-height: 1.7;
    margin-bottom: var(--space-5);
}

/* Platform badges — museum catalog labels
   Sit on parchment, so we use dark obsidian bg + gold border for
   strong contrast. No more near-black-red-on-dark wax seal. */
.decklist-teaser__badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.desk__correspondence .platform-badge {
    display: inline-flex;
    align-items: center;
    border-radius: var(--radius-sm);
    background: var(--color-obsidian);
    border: 1px solid var(--color-gold-deep);
    color: var(--color-gold-pale);
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    padding: 4px 10px;
    text-transform: uppercase;
    box-shadow: 0 1px 4px rgba(0,0,0,0.35);
}

/* Leather ledger — right side */
.ledger {
    background:
        linear-gradient(to bottom, #1e130c 0%, #2a1a10 100%);
    border: 2px solid var(--color-olive-deep);
    border-radius: var(--radius-md);
    padding: var(--space-6);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    /* Leather cover look */
    box-shadow:
        0 0 0 4px #1a0d07,
        0 0 0 5px var(--color-olive-deep),
        0 12px 40px rgba(0,0,0,0.7);
    /* Spine fold */
    position: relative;
    overflow: hidden;
}

.ledger::before {
    content: none;
}

.ledger .decklist-mockup__line {
    border-bottom-color: rgba(107,106,78,0.22);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    padding-block: var(--space-3);
}

.ledger .decklist-mockup__line span {
    color: var(--color-olive-light);
    font-weight: 600;
}

/* Stronger, more legible status colours on the dark leather */
.ledger .decklist-mockup__line--in-stock { color: #6ec97e; }
.ledger .decklist-mockup__line--partial  { color: #e8c060; }
.ledger .decklist-mockup__line--missing  { color: #8a8070; text-decoration: line-through; }

/* Curator CTA button */
.hall--curator .btn--primary {
    background: var(--color-gold-deep);
    border-color: var(--color-gold);
    color: var(--color-obsidian);
    font-family: var(--font-heading);
    letter-spacing: var(--tracking-wider);
}

.hall--curator .btn--primary:hover {
    background: var(--color-gold);
}

/* -------------------------------------------------------------------------- */
/* Hall — Foundations (Trust Pillars → Foundation Stones)                      */
/* -------------------------------------------------------------------------- */
.hall--foundations {
    background:
        repeating-linear-gradient(
            90deg,
            rgba(255,255,255,0.01) 0px,
            transparent 1px,
            transparent 60px,
            rgba(255,255,255,0.01) 61px
        ),
        linear-gradient(to bottom, var(--color-purple-abyss), var(--color-vault));
    padding-block: var(--space-24);
    border-top: 1px solid rgba(155,81,224,0.15);
}

/* The pillars grid — 4-column Doric columns */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
}

/* Each pillar — full Doric column with capital/shaft/base */
.pillar {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* Capital slab */
.pillar__capital {
    width: calc(100% + 8px);
    height: 12px;
    background: linear-gradient(to bottom, var(--color-stone-light), var(--color-stone-mid));
    border-radius: 2px 2px 0 0;
    box-shadow: 0 -2px 6px rgba(0,0,0,0.3);
    margin-bottom: 0;
}

/* Shaft — fluted surface holding the icon + text niche */
.pillar__shaft {
    width: 100%;
    flex: 1;
    background-image:
        repeating-linear-gradient(
            to right,
            rgba(0,0,0,0.15)       0px,
            rgba(0,0,0,0.04)       2px,
            rgba(255,255,255,0.03) 4px,
            rgba(255,255,255,0.03) 6px,
            rgba(0,0,0,0.04)       8px,
            rgba(0,0,0,0.15)       10px
        ),
        linear-gradient(
            180deg,
            var(--color-vault-raised) 0%,
            var(--color-vault) 100%
        );
    background-size: 10px 100%, 100% 100%;
    border-left:  1px solid var(--color-olive-deep);
    border-right: 1px solid var(--color-olive-deep);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}

/* Icon niche — carved recess */
.pillar__icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-obsidian);
    border-radius: var(--radius-md);
    color: var(--color-gold);
    box-shadow: var(--shadow-inset), 0 0 0 1px var(--color-olive-deep);
    margin-bottom: var(--space-2);
}

.pillar__icon svg {
    width: 26px;
    height: 26px;
}

.pillar__title {
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: 700;
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: var(--color-stone-mid);
    text-shadow: 1px 1px 0 rgba(0,0,0,0.5);
}

.pillar__desc {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    line-height: var(--leading-normal);
    margin: 0;
}

/* Plinth base */
.pillar__plinth {
    width: calc(100% + 4px);
    height: 10px;
    background: linear-gradient(to bottom, var(--color-stone-dark), #9a9078);
    border-radius: 0 0 2px 2px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
}

/* GSAP-driven rise-from-below — initial state */
.hall--foundations .pillar {
    opacity: 0;
    transform: translateY(60px);
}

/* When JS is disabled, show the pillars immediately */
.no-js .hall--foundations .pillar {
    opacity: 1;
    transform: none;
}

/* -------------------------------------------------------------------------- */
/* Hall progress pips — mana symbols on right edge (>1400px only)              */
/* -------------------------------------------------------------------------- */
.hall-progress {
    position: fixed;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    z-index: var(--z-header);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    pointer-events: none;
    opacity: 0.5;
    transition: opacity var(--transition-base);
}

.hall-progress:hover { opacity: 1; pointer-events: auto; }

.hall-pip {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Mana', sans-serif;
    font-size: 14px;
    color: var(--color-olive-mid);
    transition: color var(--transition-fast), transform var(--transition-fast);
    cursor: pointer;
}

.hall-pip.is-active {
    color: var(--color-gold);
    transform: scale(1.2);
}

@media (max-width: 1399px) {
    .hall-progress { display: none; }
}

/* -------------------------------------------------------------------------- */
/* Responsive                                                                   */
/* -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .format-grid          { grid-template-columns: repeat(2, 1fr); }
    .pillars-grid         { grid-template-columns: repeat(2, 1fr); }
    .curator-desk         { grid-template-columns: 1fr; gap: var(--space-8); }
    .desk__correspondence { transform: none; }
    .ledger               { order: -1; }
}

@media (max-width: 640px) {
    .format-grid  { grid-template-columns: 1fr; }
    .pillars-grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }

    .hall--rotunda .hero-ctas { flex-direction: column; align-items: stretch; }
    .hall--rotunda .hero-ctas .btn { width: 100%; }
}