/* ═══════════════════════════════════════════════════════════════════════════
   Chalmersspexet Historia — Frontend Styles
   Compact 10-column poster grid
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── CSS Variables ─────────────────────────────────────────────────────────── */
:root {
    --cspex-red-dark:   #691d11;
    --cspex-red-deeper: #56160c;
    --cspex-gold:       #c9a84c;
    --cspex-white:      #f5f0e8;
    --cspex-grey:       #b0a898;
    --cspex-shadow:     rgba(0, 0, 0, 0.55);
    --cspex-gap:        4px;
    --cspex-cols:       10;
    --cspex-caption-h:  36px;
}

/* ── Page background — scrolls with content ────────────────────────────────── */
.cspex-historia-wrap {
    --s: 60px;
    --c1: var(--cspex-red-dark);
    --c2: var(--cspex-red-deeper);
    --_g: #0000 83%, var(--c1) 85% 99%, #0000 101%;

    background:
        radial-gradient(27% 29% at right,  var(--_g)) calc(var(--s) / 2)  var(--s),
        radial-gradient(27% 29% at left,   var(--_g)) calc(var(--s) / -2) var(--s),
        radial-gradient(29% 27% at top,    var(--_g)) 0 calc(var(--s) / 2),
        radial-gradient(29% 27% at bottom, var(--_g)) 0 calc(var(--s) / -2)
        var(--c2);
    background-size: calc(2 * var(--s)) calc(2 * var(--s));
    background-attachment: scroll; /* was fixed — now scrolls with page */
    padding: 0 0 80px;
    min-height: 100vh;
}

/* ── Banner ─────────────────────────────────────────────────────────────────── */
.cspex-banner {
    width: 100%;
    margin-bottom: 40px;
    line-height: 0;
}
.cspex-banner img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    max-height: 220px;
}

/* ── Era section ────────────────────────────────────────────────────────────── */
.cspex-era {
    max-width: 1400px;
    margin: 0 auto 60px;
    padding: 0 20px;
}

.cspex-era-title {
    font-size: 1.8rem;
    color: var(--cspex-white);
    text-align: center;
    margin: 0 0 8px;
    letter-spacing: 0.04em;
    text-shadow: 0 2px 8px rgba(0,0,0,0.6);
    font-family: Georgia, 'Times New Roman', serif;
}

/* ── Decade label — no trailing line ───────────────────────────────────────── */
.cspex-decade-label {
    color: var(--cspex-grey);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 18px 0 6px;
}
/* Removed ::after pseudo-element that drew the horizontal rule */

/* ── 10-column poster grid ──────────────────────────────────────────────────── */
.cspex-grid {
    display: grid;
    grid-template-columns: repeat(var(--cspex-cols), 1fr);
    gap: var(--cspex-gap);
}

/* ── Individual entry ───────────────────────────────────────────────────────── */
.cspex-entry {
    position: relative;
}
.cspex-entry-empty {
    aspect-ratio: 2 / 3;
    background: rgba(0,0,0,0.15);
    border-radius: 2px;
}
.cspex-entry-link {
    display: block;
    text-decoration: none;
    color: inherit;
    position: relative;
}

/* Poster image container */
.cspex-poster {
    position: relative;
    width: 100%;
    aspect-ratio: 2 / 3;
    overflow: hidden;
    background: #2c1a12;
    border-radius: 2px;
    box-shadow: 0 3px 10px var(--cspex-shadow);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.cspex-entry-link:hover .cspex-poster {
    transform: scale(1.06) translateY(-3px);
    box-shadow: 0 10px 28px rgba(0,0,0,0.7);
    z-index: 2;
}
.cspex-poster img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: filter 0.18s ease;
}
.cspex-entry-link:hover .cspex-poster img {
    filter: brightness(1.08);
}

/* Placeholder when no poster image */
.cspex-poster-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px 4px;
    background: linear-gradient(160deg, #2c1a12 0%, #1a0e08 100%);
    border: 1px solid rgba(201, 168, 76, 0.2);
    text-align: center;
    gap: 4px;
}
.cspex-placeholder-title {
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--cspex-gold);
    line-height: 1.2;
    word-break: break-word;
    font-family: Georgia, serif;
}
.cspex-placeholder-year {
    font-size: 0.55rem;
    color: var(--cspex-grey);
}

/* Caption below poster */
.cspex-entry-caption {
    display: flex;
    flex-direction: column;
    padding: 3px 1px 0;
    min-height: var(--cspex-caption-h);
    overflow: hidden;
}
.cspex-caption-title {
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--cspex-white);
    line-height: 1.25;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.cspex-caption-year {
    font-size: 0.55rem;
    color: var(--cspex-grey);
    line-height: 1.2;
}

/* ── Tooltip ────────────────────────────────────────────────────────────────── */
#cspex-tooltip {
    position: fixed;
    background: rgba(10, 5, 3, 0.94);
    color: var(--cspex-white);
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 13px;
    max-width: 240px;
    line-height: 1.5;
    z-index: 9999;
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
    box-shadow: 0 4px 16px rgba(0,0,0,0.6);
    border: 1px solid rgba(201, 168, 76, 0.25);
}
#cspex-tooltip.cspex-tooltip-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Bob & Vera split layout — no dividers ──────────────────────────────────── */
.cspex-split-header {
    display: flex;
    align-items: center;
    margin-bottom: 4px;
    margin-top: 10px;
}
.cspex-split-col-label {
    flex: 1;
    text-align: center;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--cspex-gold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
/* .cspex-split-divider removed — element stays in HTML as zero-width spacer */
.cspex-split-divider {
    display: none;
}

.cspex-split-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    align-items: start;
}
/* .cspex-split-divider-vert removed — element hidden */
.cspex-split-divider-vert {
    display: none;
}
.cspex-split-side .cspex-grid {
    --cspex-cols: 5;
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
    :root { --cspex-cols: 8; }
    .cspex-split-side .cspex-grid { --cspex-cols: 4; }
}
@media (max-width: 800px) {
    :root { --cspex-cols: 6; }
    .cspex-split-side .cspex-grid { --cspex-cols: 3; }
    .cspex-era-title { font-size: 1.3rem; }
}
@media (max-width: 540px) {
    :root { --cspex-cols: 4; }
    .cspex-split-side .cspex-grid { --cspex-cols: 2; }
    .cspex-split-grid { gap: 6px; }
}