/* ── Piece header ── */

.piece-header {
    padding: calc(var(--nav-height) + 2rem) 0 1rem;
    text-align: center;
    background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.piece-header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 300;
    letter-spacing: 0.05em;
    margin-bottom: 0.6rem;
}

.back-link {
    display: inline-block;
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

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

.subtitle {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    max-width: 560px;
    margin: 0 auto;
}

.source {
    margin-top: 1.5rem;
    font-size: 0.8rem;
    color: var(--color-text-subtle);
}

/* ── Sections ── */

.category-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    border-top: 1px solid var(--color-border);
    opacity: 0.3;
    transition: opacity 0.6s ease;
}

.category-section.is-active {
    opacity: 1;
}

.section-inner {
    display: flex;
    gap: 3rem;
    max-width: 1100px;
    width: 100%;
    align-items: flex-start;
}

/* ── Country list ── */

.country-list {
    flex: 0 0 180px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 0.78rem;
    position: sticky;
    top: calc(var(--nav-height) + 1rem);
    max-height: calc(100vh - var(--nav-height) - 2rem);
    overflow-y: auto;
}

.country-item {
    padding: 4px 10px;
    border-radius: 4px;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: background 0.2s, color 0.2s;
    white-space: nowrap;
}

.country-item:hover,
.country-item.is-active {
    background: var(--color-bg-card);
    color: var(--color-white);
}

.country-item.is-active {
    background: var(--color-bg-card-hover);
    font-weight: 600;
}

/* ── Viz area ── */

.viz-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.viz-area h2 {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
}

.section-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    max-width: 440px;
    margin-bottom: 2rem;
}

.hourglass-container {
    width: 100%;
    max-width: 500px;
}

.hourglass-container svg {
    display: block;
    width: 100%;
    height: auto;
}

.data-label {
    display: flex;
    gap: 3rem;
    margin-top: 1.5rem;
    font-size: 0.95rem;
}

.label-women { color: var(--color-accent); }
.label-men { color: var(--color-accent-alt); }
.val-women, .val-men { font-size: 1.3rem; }

.country-name-display {
    margin-top: 0.8rem;
    font-size: 0.85rem;
    color: var(--color-text-subtle);
    font-style: italic;
}

/* ── Hourglass SVG ── */

.hourglass-outline {
    fill: none;
    stroke: var(--color-border);
    stroke-width: 2;
}

.hourglass-fill-women {
    fill: var(--color-accent);
    opacity: 0.6;
}

.hourglass-fill-men {
    fill: var(--color-accent-alt);
    opacity: 0.6;
}

.hourglass-label {
    font-size: 14px;
    fill: var(--color-text-muted);
    text-anchor: middle;
}

/* ── Responsive ── */

@media (max-width: 768px) {
    .section-inner {
        flex-direction: column-reverse;
        align-items: center;
    }
    .piece-header {
        text-align: left;
    }

    .country-list {
        flex: none;
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        max-height: none;
        gap: 4px;
    }

    .data-label {
        flex-direction: column;
        gap: 0.5rem;
        align-items: center;
    }
}