:root {
    /* 配色設定 */
    --c-primary: #4E342E;
    --c-bg:      #EFEBE9;
    --c-card:    #FFFFFF;
    --c-text:    #3E2723;
    --c-border:  #D7CCC8;
    --c-accent:  #BF360C;
    --c-btn:     #8D6E63;
    --c-shadow:  rgba(62, 39, 35, 0.1);
}

/* --- Base Styles --- */
body {
    font-family: 'Noto Sans JP', sans-serif;
    background: var(--c-bg);
    color: var(--c-text);
    margin: 0;
    padding: 15px;
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
}

.container { max-width: 600px; margin: 0 auto; padding-bottom: 80px; }

/* --- Utility Classes --- */
.mb-sm { margin-bottom: 8px; }
.mb-md { margin-bottom: 12px; }
.mb-lg { margin-bottom: 20px; }
.text-center { text-align: center; }

/* --- Typography --- */
h1 { font-size: 1.2rem; color: var(--c-primary); margin: 0; line-height: 1.2; }
.subtitle { font-size: 0.75rem; color: #5D4037; font-weight: normal; display: block; }

h2 { 
    font-size: 1rem; margin: 0 0 12px 0; color: var(--c-primary); 
    border-bottom: 2px solid var(--c-border); padding-bottom: 6px; 
    display: flex; justify-content: space-between; align-items: flex-end; 
}

.font-mono { font-family: 'Roboto Mono', monospace; }
.text-accent { color: var(--c-accent); }
.text-primary { color: var(--c-primary); }

/* --- Components --- */
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; }

.card {
    background: var(--c-card);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px var(--c-shadow);
    border: 1px solid var(--c-border);
}

.card.result-card { background: #EFEBE9; border: 2px solid #8D6E63; box-shadow: 0 4px 12px rgba(62, 39, 35, 0.15); }
.res-val {
    font-family: 'Roboto Mono'; font-weight: 700; font-size: 1.1rem; color: var(--c-primary);
    background: rgba(255,255,255,0.5); 
    padding: 2px 6px;
    border-radius: 4px;
}

/* --- Forms & Inputs --- */
label { 
    display: block; font-size: 0.9rem; font-weight: bold; color: var(--c-primary);
    margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; 
}

/* チェックボックス以外のinputとselect */
select, input:not([type="checkbox"]) {
    width: 100%; padding: 12px;
    border: 1px solid var(--c-border); border-radius: 8px;
    font-size: 16px; background: #FAFAFA; box-sizing: border-box;
    color: var(--c-text); appearance: none;
}
select:focus, input:not([type="checkbox"]):focus {
    border-color: var(--c-accent);
    background: #FFF;
    outline: none;
    box-shadow: 0 0 0 3px rgba(191, 54, 12, 0.2);
}

/* チェックボックス専用スタイル */
input[type="checkbox"] {
    appearance: auto;           
    -webkit-appearance: auto;   
    accent-color: var(--c-accent);
    width: 20px;
    height: 20px;
    cursor: pointer;
    vertical-align: middle;
}

/* 保有量入力欄 (#stock) - 上下配置用に修正 */
#stock {
    font-family: 'Roboto Mono', monospace;
    font-size: 1.2rem;
    font-weight: bold;
    text-align: center;
    height: 44px;
    padding: 0 10px;
    /* 下側の角を直角にして、下のボタンと繋がっているように見せる */
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    border-bottom: none; /* 下線を消す */
    margin-bottom: 0;
}
#stock::placeholder {
    font-weight: normal;
    font-size: 1rem;
    opacity: 0.6;
}

/* ★追加: 入力欄とツールボタンのグルーピング */
.stock-input-group {
    display: flex;
    flex-direction: column; /* 縦に積む */
}

/* ボタン群のラッパー */
.stock-tools {
    display: flex;
    width: 100%;
}

.unit-btn {
    flex: 1; /* 3等分 */
    height: 40px;
    background: #D7CCC8;
    color: #5D4037;
    border: 1px solid #A1887F;
    border-right: none; /* 隣り合う線の重複を防ぐ */
    font-weight: bold;
    font-family: 'Roboto Mono', monospace;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.1s;
    font-size: 1rem;
}
/* 左下の角を丸く */
.unit-btn:first-child {
    border-bottom-left-radius: 8px;
}
/* 右下の角を丸く、右線を復活 */
.unit-btn:last-child {
    border-bottom-right-radius: 8px;
    border-right: 1px solid #A1887F;
}

.unit-btn:hover { background: #BCAAA4; }
.unit-btn:active { background: #8D6E63; color: #FFF; }

/* 削除ボタンを少し強調 */
.del-btn {
    font-size: 1.2rem;
    color: #8D6E63;
}


/* --- Grid Layouts --- */
.grid { display: grid; gap: 12px; }
.cols-2 { grid-template-columns: 1fr 1fr; }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
.mt-md { margin-top: 15px; }

@media (max-width: 600px) {
    .cols-4 { grid-template-columns: 1fr 1fr; }
}

/* --- Values & Results --- */
.res-row { 
    display: flex; justify-content: space-between; align-items: center; 
    padding: 6px 0; border-bottom: 1px dashed rgba(62, 39, 35, 0.15); 
}
.res-row:last-child { border: none; }

.highlight-box {
    background: #FFF; border-radius: 8px; padding: 15px; text-align: center;
    margin-top: 12px; border: 2px solid var(--c-accent);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
}

.big-time { 
    font-size: 2.6rem; font-weight: 900; color: var(--c-accent); 
    line-height: 1; margin: 2px 0 0 0; letter-spacing: -1px;
}
.big-date { font-size: 1.2rem; font-weight: bold; color: #5D4037; margin-bottom: 8px; }

.shortage-area {
    background: #FBE9E7; border-radius: 6px; padding: 6px 12px;
    display: flex; align-items: baseline; gap: 6px; color: var(--c-accent);
}

/* --- Buttons --- */
.btn-group { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.btn { padding: 12px; border: none; border-radius: 8px; font-weight: bold; color: #fff; cursor: pointer; font-size: 0.9rem; transition: transform 0.1s, box-shadow 0.1s; }
.btn-save { background: var(--c-primary); }
.btn-reset { background: var(--c-btn); }

/* クリック時のアニメーション */
.btn:active, .step-btn:active, .buff-chip:active, .tab-item:active, .unit-btn:active {
    transform: scale(0.96);
    transition: transform 0.05s ease;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.time-wrapper { display: flex; gap: 8px; }
.btn-now {
    background: var(--c-primary); color: white; border: none; border-radius: 8px;
    padding: 0 12px; font-weight: bold; cursor: pointer; font-size: 0.8rem;
    white-space: nowrap;
}

/* --- Language Switcher --- */
.lang-switch { display: flex; gap: 12px; }
.flag-icon { 
    width: 36px; height: auto; cursor: pointer; opacity: 0.4; 
    filter: grayscale(100%); transition: all 0.2s ease; 
    border-radius: 4px; border: 2px solid transparent;
}
.flag-icon.active { 
    opacity: 1; filter: grayscale(0%); transform: scale(1.1); 
    border-color: var(--c-primary);
}
.unit { font-size: 0.8em; font-weight: normal; margin-left: 1px; }

/* =========================================
   ステッパー & バフボタン用 UI
   ========================================= */

/* ステッパー */
.stepper-ctrl {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
}

.step-btn {
    width: 44px;
    height: 44px;
    background: #EFEBE9;
    border: 1px solid var(--c-btn);
    color: var(--c-primary);
    font-size: 1.5rem;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    transition: background 0.1s;
}

.step-display {
    flex: 1;
    display: flex;
    align-items: baseline; 
    justify-content: center;
    background: #FFF;
    border: 1px solid var(--c-border);
    border-radius: 8px;
    min-height: 44px;
    padding: 10px 5px;
    font-family: 'Roboto Mono', monospace;
    font-size: 1.1rem;
    cursor: default;
    user-select: none;
    white-space: nowrap;
    box-sizing: border-box;
}

/* 数値表示用 */
.sub-label {
    font-size: 0.8rem;
    color: #8D6E63;
    margin-right: 4px;
    font-weight: bold;
}
.sub-sep {
    display: inline-block;
    width: 12px;
}

.val-lv { font-weight: bold; color: #3E2723; }
.val-res { font-weight: bold; color: #007AFF; }
.val-res.buffed { color: #2E7D32; }

/* バフ選択 (トグルボタン) */
.buff-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.buff-chip {
    flex: 1;
    min-width: 140px; 
    padding: 16px 10px;
    background: #FFF;
    border: 1px solid var(--c-border);
    border-radius: 30px; 
    color: var(--c-text);
    font-weight: bold;
    font-size: 1.1rem;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
    user-select: none;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* コーヒーボタンの強調 */
#btn-buff-250 span, #btn-buff-500 span {
    font-size: 1.1rem;
    font-weight: 900;
}

/* スキルボタンの文字サイズ調整 */
#btn-skill span {
    font-size: 1.1rem;
    font-weight: bold;
}

.buff-chip.active {
    background: #007AFF; 
    border-color: #007AFF;
    color: #FFF;
    box-shadow: 0 3px 8px rgba(0, 122, 255, 0.4);
    transform: translateY(-1px);
}

/* --- 非活性化状態 --- */
.disabled-item {
    opacity: 0.4;
    pointer-events: none;
    filter: grayscale(100%);
}

/* --- 討伐判定結果 --- */
.battle-result-box {
    margin-top: 12px;
    padding: 10px;
    border-radius: 8px;
    text-align: center;
    background: #EEE;
    border: 2px solid #CCC;
    color: #555;
    font-family: 'Roboto Mono', monospace;
    line-height: 1.6;
}
.battle-result-box.win {
    background: #E8F5E9;
    border-color: #2E7D32;
    color: #2E7D32;
}
.battle-result-box.lose {
    background: #FFEBEE;
    border-color: #C62828;
    color: #C62828;
}

/* --- タブメニュー用CSS --- */
.tab-menu {
    display: flex;
    gap: 5px;
}
.tab-item {
    flex: 1;
    padding: 12px;
    background: #D7CCC8;
    border: none;
    border-radius: 8px 8px 0 0;
    font-weight: bold;
    color: #5D4037;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    border-bottom: 3px solid transparent;
}
.tab-item.active {
    background: #FFF;
    color: #BF360C;
    border-bottom: 3px solid #BF360C;
}
.tab-content {
    animation: fadein 0.3s;
}
@keyframes fadein {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* --- 強化設定エリア --- */
.bonus-area {
    background: #F5F5F5;
    border: 1px solid #E0E0E0;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
}

/* --- 討伐可能ライン表示ボックス --- */
.max-win-box {
    background: #E8F5E9;
    border: 1px solid #2E7D32;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 20px;
    text-align: center;
}
.max-win-box .label {
    font-size: 0.9rem;
    font-weight: bold;
    color: #2E7D32;
    margin-bottom: 6px;
}
.max-win-box .value {
    display: flex;
    align-items: baseline; 
    justify-content: center;
    font-family: 'Roboto Mono', monospace;
    gap: 15px; /* ★ここを追加: 要素同士の間隔を広げる */
}