/* カスタムスタイル - v1.2 */
html {
    overflow-y: auto !important; /* 必要に応じてスクロール */
    overflow-x: hidden !important;
    /* スクロールバーのガターを常に確保 */
    scrollbar-gutter: stable !important;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: #f8fafc;
    /* スクロールバーのガターを常に確保 */
    scrollbar-gutter: stable !important;
    padding: 0;
    margin: 0;
}

/* ルート要素 */
#root {
    min-height: 100vh;
}

/* ホバー時のレイアウトシフトを完全に防止 */
* {
    box-sizing: border-box !important;
}

/* Tailwindのすべてのホバーエフェクトを無効化 - 最高優先度 */
*:hover {
    transform: none !important;
    scale: none !important;
}

/* ボタン、リンク、divのホバー時の変形を完全に禁止 */
button:hover, 
button:focus,
a:hover, 
a:focus,
[role="button"]:hover, 
[role="button"]:focus,
div:hover,
svg:hover,
.group:hover,
.group:hover * {
    transform: none !important;
    scale: 1 !important;
}

/* ホバー時のシャドウ変更を完全に無効化 */
*[class*="shadow"]:hover,
*[class*="hover:shadow"],
.shadow:hover, 
.shadow-sm:hover, 
.shadow-md:hover, 
.shadow-lg:hover, 
.shadow-xl:hover,
.shadow-2xl:hover {
    box-shadow: inherit !important;
}

.custom-scrollbar::-webkit-scrollbar { 
    width: 8px; 
}

.custom-scrollbar::-webkit-scrollbar-track { 
    background: #f1f5f9; 
}

.custom-scrollbar::-webkit-scrollbar-thumb { 
    background: #cbd5e1; 
    border-radius: 4px; 
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover { 
    background: #94a3b8; 
}

/* ドラッグ&ドロップ関連 */
.dragging-source {
    opacity: 0.4;
    transform: scale(0.95);
    z-index: 1000;
    transition: opacity 0.15s ease-out, transform 0.15s ease-out;
    will-change: transform, opacity;
}

.drag-ghost {
    transform: scale(1.02);
    background: white;
    z-index: 1001;
    border: 1px solid #6366f1;
    border-radius: 6px;
}

.drop-preview {
    opacity: 0;
    transition: opacity 0.15s ease-out, transform 0.15s ease-out, height 0.15s ease-out;
    pointer-events: none;
    border: 2px dashed #6366f1;
    border-radius: 8px;
    background: rgba(99, 102, 241, 0.08);
    transform: scaleY(0);
    height: 0px;
    margin: 0;
    overflow: hidden;
}

.drop-preview.active {
    opacity: 1;
    transform: scaleY(1);
    height: 48px;
    margin: 0;
}

.dragging .mapping-item {
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.mapping-item:not(.dragging-source) {
    background-color: white;
}

.mapping-item {
    backface-visibility: hidden;
    contain: layout;
    transition: opacity 0.15s ease-out;
}

/* ツールチップ */
.tooltip {
    position: absolute;
    z-index: 9999;
    background: #1f2937;
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease-out;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.tooltip.show {
    opacity: 1;
}

.tooltip::before {
    content: '';
    position: absolute;
    top: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-bottom: 4px solid #1f2937;
}

/* ヘルプバッジ */
.help-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #6366f1;
    color: white;
    font-size: 12px;
    font-weight: bold;
    cursor: help;
    transition: all 0.2s;
}

.help-badge:hover {
    background: #4f46e5;
    transform: scale(1.1);
}