/* ============================================================
   戦闘中リュックオーバーレイ
   ============================================================ */
.battle-bag-overlay {
    z-index: 145;
    align-items: center;
    justify-content: center;
}

.battle-bag-content {
    background: linear-gradient(180deg, #181f3c 0%, #0d1222 100%);
    border: 3px solid rgba(200, 165, 0, 0.62);
    border-radius: 20px;
    padding: 0;
    width: 540px;
    max-width: 92%;
    display: flex;
    flex-direction: column;
    box-shadow: 0 0 34px rgba(200, 165, 0, 0.28), 0 12px 44px rgba(0, 0, 0, 0.8), inset 0 1px 0 rgba(255, 240, 100, 0.07);
    position: relative;
    overflow: hidden;
}

.battle-bag-header {
    display: flex;
    align-items: center;
    padding: 14px 20px 10px;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.battle-bag-header .quit-battle-btn {
    position: static;
    flex-shrink: 0;
}

.battle-bag-title {
    font-family: var(--font-pixel);
    font-size: 30px;
    color: var(--accent-color);
    margin: 0 auto;
    text-shadow: 0 0 8px rgba(255, 215, 0, 0.4);
}

.battle-bag-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 16px;
    overflow-y: auto;
    max-height: 380px;
}

.battle-bag-card {
    background: linear-gradient(145deg, #1e2848, #131930);
    border: 2px solid rgba(55, 80, 148, 0.42);
    border-radius: 12px;
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
    gap: 4px;
    min-height: 90px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.battle-bag-card:hover:not(.battle-bag-card--empty) {
    transform: scale(1.04);
    border-color: var(--primary-color);
    box-shadow: 0 0 10px rgba(79, 172, 254, 0.4);
}

.battle-bag-card.selected {
    border-color: var(--accent-color);
    box-shadow: 0 0 12px rgba(255, 215, 0, 0.5);
    background: linear-gradient(145deg, #2a2d18, #1a1c10);
}

.battle-bag-card--empty {
    opacity: 0.45;
    cursor: default;
}

.battle-bag-item-img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    filter: drop-shadow(0 0 3px rgba(255, 215, 0, 0.7));
}

.battle-bag-item-count {
    font-family: var(--font-pixel);
    font-size: 22px;
    color: var(--accent-color);
    font-weight: bold;
}

.battle-bag-item-name {
    font-family: var(--font-pixel);
    font-size: 16px;
    color: #e2e8f0;
    text-align: center;
}

.bag-img--empty {
    filter: brightness(0) opacity(0.5);
}

/* アイテム使用確認パネル */
.battle-item-confirm {
    display: flex;
    gap: 16px;
    justify-content: center;
    padding: 14px 20px 16px;
    border-top: 1px solid var(--border-color);
}

.battle-item-confirm button {
    font-size: 28px;
    padding: 12px 36px;
    flex: 1;
    max-width: 180px;
}

/* portrait overrides */
#app.portrait-mode .battle-bag-content {
    width: 680px;
}

#app.portrait-mode .battle-bag-title {
    font-size: 38px;
}

#app.portrait-mode .battle-bag-grid {
    gap: 18px;
    padding: 20px;
    max-height: 780px;
}

#app.portrait-mode .battle-bag-card {
    padding: 18px 12px;
    min-height: 130px;
}

#app.portrait-mode .battle-bag-item-img {
    width: 70px;
    height: 70px;
}

#app.portrait-mode .battle-bag-item-count {
    font-size: 30px;
}

#app.portrait-mode .battle-bag-item-name {
    font-size: 22px;
}

#app.portrait-mode .battle-item-confirm button {
    font-size: 38px;
    padding: 18px 48px;
    max-width: 216px;
}