/**
 * Region taxonomy archive — 縣市專屬分類頁。
 *
 * 結構：
 *   .region-archive
 *   ├── .region-hero (.region-hero__overlay, .region-hero__content)
 *   │   └── .region-hero__title / __desc / __count
 *   └── .region-body
 *       └── .region-tabs (.travel-tabs)
 *           ├── .travel-tabs__tablist > .travel-tabs__tab
 *           └── .travel-tabs__panels > .travel-tab-panel
 *               ├── .place-grid
 *               └── .region-tabs__more
 */

/* ─── Hero ───────────────────────────────────────────── */
.region-hero {
    position: relative;
    width: 100%;
    min-height: 360px;
    background-color: var(--travel-primary, #2c3e50);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-bottom: var(--travel-space-2xl);
}

.region-hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.35) 0%,
        rgba(0, 0, 0, 0.55) 60%,
        rgba(0, 0, 0, 0.7) 100%
    );
    z-index: 1;
}

.region-hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--travel-space-2xl) var(--travel-space-lg);
    width: 100%;
}

.region-hero__title {
    margin: 0 0 var(--travel-space-md);
    font-size: clamp(28px, 5.5vw, 48px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
    text-shadow: 0 4px 18px rgba(0, 0, 0, 0.45);
}

.region-hero__desc {
    margin: 0 auto var(--travel-space-md);
    max-width: 720px;
    font-size: var(--travel-fs-body);
    line-height: 1.7;
    opacity: 0.95;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

.region-hero__desc p {
    margin: 0 0 var(--travel-space-sm);
}

.region-hero__desc p:last-child {
    margin-bottom: 0;
}

.region-hero__count {
    margin: 0;
    font-size: var(--travel-fs-small);
    opacity: 0.85;
    letter-spacing: 0.02em;
}

@media (max-width: 767px) {
    .region-hero {
        min-height: 240px;
    }
    .region-hero__content {
        padding: var(--travel-space-xl) var(--travel-space-md);
    }
}

/* ─── Body wrapper ───────────────────────────────────── */
.region-body {
    padding: var(--travel-space-lg) var(--travel-space-md) var(--travel-space-3xl);
}

/* ─── Tabs (與 home regional-attractions 同風格) ───── */
.region-tabs .travel-tabs__tablist {
    display: flex;
    flex-wrap: wrap;
    gap: var(--travel-space-xs);
    border-bottom: 2px solid rgba(0, 0, 0, 0.06);
    margin-bottom: var(--travel-space-xl);
}

.region-tabs .travel-tabs__tab {
    background: transparent;
    border: 0;
    padding: 10px 18px;
    font-size: var(--travel-fs-h5);
    font-weight: 600;
    color: var(--travel-text-muted);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: color 0.18s ease, border-color 0.18s ease;
}

.region-tabs .travel-tabs__tab:hover {
    color: var(--travel-accent);
}

.region-tabs .travel-tabs__tab:focus-visible {
    outline: 2px solid var(--travel-accent);
    outline-offset: 2px;
    border-radius: 4px;
    color: var(--travel-accent);
}

.region-tabs .travel-tabs__tab.is-active,
.region-tabs .travel-tabs__tab[aria-selected="true"] {
    color: var(--travel-accent);
    border-bottom-color: var(--travel-accent);
}

.region-tabs .travel-tabs__count {
    margin-left: 6px;
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.06);
    font-size: 12px;
    font-weight: 600;
}

.region-tabs .travel-tabs__tab.is-active .travel-tabs__count,
.region-tabs .travel-tabs__tab[aria-selected="true"] .travel-tabs__count {
    background: rgba(var(--travel-accent-rgb, 230, 126, 34), 0.15);
    color: var(--travel-accent);
}

/* ─── Panel grid ─────────────────────────────────────── */
.region-tabs .travel-tab-panel {
    animation: region-fade-in 0.25s ease;
}

.region-tabs .place-grid {
    display: grid;
    gap: var(--travel-space-md);
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

@media (max-width: 640px) {
    .region-tabs .place-grid {
        grid-template-columns: 1fr;
    }
}

/* ─── 「查看更多」CTA ────────────────────────────────── */
.region-tabs__more {
    margin: var(--travel-space-2xl) 0 0;
    text-align: center;
}

.region-tabs__more .btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 999px;
    font-weight: 700;
    text-decoration: none;
    transition: background-color 0.18s ease, transform 0.18s ease, color 0.18s ease;
}

.region-tabs__more .btn-secondary {
    background: transparent;
    color: var(--travel-accent);
    border: 2px solid var(--travel-accent);
}

.region-tabs__more .btn-secondary:hover {
    background: var(--travel-accent);
    color: #fff;
    transform: translateY(-2px);
}

.region-tabs__more .btn-secondary:focus-visible {
    outline: 2px solid var(--travel-accent);
    outline-offset: 3px;
}

/* ─── Animation ──────────────────────────────────────── */
@keyframes region-fade-in {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ─── Reduced motion ─────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .region-tabs .travel-tabs__tab,
    .region-tabs__more .btn,
    .region-tabs .travel-tab-panel {
        transition: none;
        animation: none;
    }
    .region-tabs__more .btn-secondary:hover {
        transform: none;
    }
}