/* 全体のスタイル */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --background-color: #f5f7fa;
    --panel-background: #ffffff;
    --text-color: #333333;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 20px;
}

/* ヘッダースタイル */
header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background-color: var(--panel-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

header h1 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

/* メインコンテンツスタイル */
main {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

section {
    background-color: var(--panel-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 20px;
    flex: 1;
    min-width: 300px;
}

h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

h3 {
    color: var(--primary-color);
    margin: 15px 0 10px;
    font-size: 1.1rem;
}

/* カラーホイールセクション */
.color-wheel-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

#color-wheel {
    width: 100%;
    max-width: 300px;
    height: 300px;
    margin: 0 auto;
}

.color-values {
    width: 100%;
    max-width: 300px;
}

.value-group {
    margin-bottom: 15px;
}

.value-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

input[type="text"], input[type="number"] {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
}

.rgb-inputs, .cmyk-inputs {
    display: flex;
    gap: 10px;
}

.rgb-inputs input, .cmyk-inputs input {
    flex: 1;
    width: 60px;
}

/* プレビューセクション */
.preview-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.main-color-preview {
    height: 150px;
    border-radius: var(--border-radius);
    background-color: #FFFFFF;
    border: 1px solid var(--border-color);
    cursor: move;
    transition: transform 0.2s;
    position: relative;
}

.main-color-preview:hover {
    transform: scale(1.02);
}

.preview-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 10px;
}

.color-info {
    background-color: rgba(245, 245, 245, 0.8);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
}

.info-item span:first-child {
    font-weight: 500;
}

/* 色域外警告スタイル */
.gamut-warning {
    display: none; /* 初期状態では非表示 */
    background-color: #fff3cd;
    color: #856404;
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.warning-icon {
    font-size: 24px;
    margin-right: 10px;
}

.warning-text p {
    margin: 0;
    font-size: 14px;
}

/* 色の組み合わせセクション */
.combinations-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-bottom: 15px;
}

.tab-btn {
    padding: 8px 15px;
    background-color: #f1f1f1;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.tab-btn:hover {
    background-color: #e0e0e0;
}

.tab-btn.active {
    background-color: var(--secondary-color);
    color: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.color-combination {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.combination-color {
    width: 60px;
    height: 60px;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.2s;
    border: 1px solid var(--border-color);
}

.combination-color:hover {
    transform: scale(1.1);
}

/* 保存したカラーセクション */
.saved-colors-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 15px 0;
    min-height: 80px;
}

.saved-color {
    width: 50px;
    height: 50px;
    border-radius: 4px;
    cursor: pointer;
    position: relative;
    border: 1px solid var(--border-color);
    transition: transform 0.2s;
}

.saved-color:hover {
    transform: scale(1.1);
}

/* 削除ボタンのスタイル */
.delete-btn {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: rgba(255, 255, 255, 0.9);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #ff0000;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
    border: 1px solid #ff0000;
    font-weight: bold;
}

.saved-color:hover .delete-btn {
    opacity: 1;
}

.delete-btn:hover {
    background-color: #ff0000;
    color: white;
}

.drop-zone {
    width: 100%;
    height: 80px;
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    margin-bottom: 15px;
}

.drop-zone.drag-over {
    background-color: rgba(52, 152, 219, 0.1);
    border-color: var(--secondary-color);
}

button {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #2980b9;
}

/* 共有セクション */
.share-url-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.share-url-container input {
    flex: 1;
    width: 100%;
}

.share-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.share-palette-btn {
    background-color: #27ae60;
}

.share-palette-btn:hover {
    background-color: #219653;
}

.share-info {
    margin-top: 15px;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 4px;
    border-left: 4px solid var(--secondary-color);
}

.share-tip {
    font-size: 14px;
    margin-bottom: 5px;
}

/* フッタースタイル */
footer {
    text-align: center;
    margin-top: 30px;
    padding: 15px;
    color: #777;
    font-size: 14px;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    main {
        flex-direction: column;
    }
    
    section {
        width: 100%;
    }
    
    .color-wheel-container {
        flex-direction: column;
    }
    
    .share-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .combinations-tabs {
        flex-direction: column;
    }
}