/* ============================================================
   Board Page 특정 스타일 (pages/board.css)
   ============================================================ */

/* ── 지역 필터 탭 ── */
.region-tabs {
    background: var(--surface);
    padding: 12px 16px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 6px;
    border-bottom: 1px solid var(--border);
}

.region-tab {
    padding: clamp(4px, 1.2vmin, 8px) clamp(10px, 3vmin, 16px);
    font-size: clamp(12.5px, 3.8vmin, 14.5px);
    font-weight: 500;
    color: var(--text-muted);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    cursor: pointer;
    white-space: nowrap;
    transition: all .15s;
    user-select: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.region-tab:hover {
    background: var(--bg);
    color: var(--text);
}

.region-tab.active {
    color: #fff !important;
    font-weight: 600;
    border-color: transparent !important;
}

.region-tab[data-r="all"].active {
    background: var(--accent);
}

.region-tab[data-r="yongsan"].active {
    background: var(--c-yongsan);
}

.region-tab[data-r="itw2"].active {
    background: var(--c-itw2);
}

.region-tab[data-r="itw1"].active {
    background: var(--c-itw1);
}

.region-tab[data-r="bogwang"].active {
    background: var(--c-bogwang);
}

.region-tab[data-r="dongbing"].active {
    background: var(--c-dongbing);
}

.region-tab[data-r="hannam-s"].active {
    background: var(--c-hannam-s);
}

.region-tab[data-r="hannam-n"].active {
    background: var(--c-hannam-n);
}

.region-tab[data-r="etc"].active {
    background: var(--c-etc);
}

.region-tab[data-r="redev"].active {
    background: var(--c-redev);
}

/* ── 카드 그리드 ── */
.cards-container {
    padding: 12px 6px;
    /* 좌우 여백 고정으로 공간 확보 */
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 4px;
    /* 간격 최소화 */
}

.card-item {
    background: var(--surface);
    border-radius: 8px;
    padding: 8px 6px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    border: 1.5px solid var(--border);
    text-decoration: none;
    transition: transform .12s, box-shadow .12s, border-color .12s;
    position: relative;
    overflow: hidden;
}

.card-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--card-color, var(--border));
    border-radius: 8px 8px 0 0;
}

.card-item:active {
    transform: scale(0.97);
    box-shadow: 0 1px 4px rgba(0, 0, 0, .06);
}

.card-item:hover {
    border-color: var(--card-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, .08);
}

.card-num {
    font-family: var(--font-mono);
    font-size: clamp(18px, 5.5vmin, 24px);
    font-weight: 600;
    color: var(--text);
    line-height: 1;
}

.card-region {
    font-size: 10px;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.3;
}

.card-badge {
    font-size: 10px;
    font-weight: 500;
    padding: 2px 6px;
    border-radius: 10px;
    background: var(--card-color-light, #f0f0f0);
    color: var(--card-color, var(--text-muted));
}

.card-item.recent::after {
    content: '●';
    position: absolute;
    top: 6px;
    right: 6px;
    font-size: 7px;
    color: #27ae60;
}

/* ── 섹션 헤더 ── */
.section-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px 8px;
}

.section-dot {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    flex-shrink: 0;
}

.section-title {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: -0.2px;
}

.section-count {
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.section-line {
    flex: 1;
    height: 1px;
    background: var(--border);
}

.search-wrap {
    position: relative;
    padding: 12px 12px 0;
}

.search-icon {
    position: absolute;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    cursor: pointer;
    z-index: 1;
}

.search-input {
    width: 100%;
    height: 38px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    padding: 0 80px 0 14px;
    font-size: 14px;
    font-family: inherit;
    background: var(--surface);
    outline: none;
    transition: border-color .15s;
    color: var(--text);
}

.rt-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.rt-num {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 12px;
    opacity: 0.7;
}

.region-tab.active .rt-num {
    opacity: 1;
    color: #fff;
}

.region-tab.active .rt-dot {
    background: #fff !important;
}

@media (min-width: 600px) {
    .cards-container {
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    }
}

/* ── [SECURITY] 시스템 다크 모드 강제 고대비 스타일 ── */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #121212 !important;
        --surface: #1e1e1e !important;
        --bg-faint: #252525 !important;
        --border: #333333 !important;
        --text: #ffffff !important;
        --text-muted: #aaaaaa !important;
    }

    :root:not([data-theme="light"]) body.itw-mobile {
        background-color: #121212 !important;
        color: #ffffff !important;
    }

    :root:not([data-theme="light"]) .region-tabs,
    :root:not([data-theme="light"]) .card-item,
    :root:not([data-theme="light"]) .search-input,
    :root:not([data-theme="light"]) .modal {
        background-color: #1e1e1e !important;
        border-color: #333333 !important;
    }

    :root:not([data-theme="light"]) .card-num,
    :root:not([data-theme="light"]) .section-title,
    :root:not([data-theme="light"]) .modal-title,
    :root:not([data-theme="light"]) .form-label {
        color: #ffffff !important;
    }

    :root:not([data-theme="light"]) .card-region,
    :root:not([data-theme="light"]) .section-count,
    :root:not([data-theme="light"]) .search-icon {
        color: #aaaaaa !important;
    }

    :root:not([data-theme="light"]) .region-tab {
        background-color: #1e1e1e !important;
        border-color: #444 !important;
        color: #aaaaaa !important;
    }

    :root:not([data-theme="light"]) .region-tab:active,
    :root:not([data-theme="light"]) .card-item:active {
        background-color: #252525 !important;
    }

    :root:not([data-theme="light"]) .search-input {
        background-color: #252525 !important;
        border-color: #444 !important;
        color: #ffffff !important;
    }

    :root:not([data-theme="light"]) .itw-skeleton {
        background: linear-gradient(90deg, #252525 25%, #333 50%, #252525 75%) !important;
        background-size: 200% 100% !important;
    }

    /* 카드 내 배지 색상 보정 */
    :root:not([data-theme="light"]) .card-badge {
        background-color: #252525 !important;
        filter: brightness(1.2) contrast(1.2);
    }

    /* 상단 필터 탭 활성화 상태 가시성 확보 */
    :root:not([data-theme="light"]) .region-tab.active .rt-num {
        color: #ffffff !important;
    }
}