/* 全体のスタイル */
:root {
    --primary-color: #4a6cf7;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --background-color: #f8f9fa;
    --border-color: #dee2e6;
    --text-color: #343a40;
    --light-text-color: #6c757d;
    --hover-color: #3a5bd9;
    --active-step-bg: #e6f0ff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

header h1 {
    color: var(--primary-color);
    font-size: 2.2rem;
    margin-bottom: 10px;
}

/* ステッパーのスタイル */
.stepper {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    position: relative;
}

.stepper::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--border-color);
    z-index: 1;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
    width: 33.333%;
    transition: all 0.3s ease;
}

.step-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: white;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 10px;
    transition: all 0.3s ease;
}

.step-title {
    font-size: 1rem;
    color: var(--light-text-color);
    transition: all 0.3s ease;
}

.step.active .step-number {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.step.active .step-title {
    color: var(--primary-color);
    font-weight: bold;
}

.step.completed .step-number {
    background-color: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

/* ステップコンテンツのスタイル */
.step-content {
    display: none;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 30px;
    margin-bottom: 30px;
}

.step-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* アップロードエリアのスタイル */
.upload-container {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    transition: all 0.3s ease;
    background-color: var(--background-color);
}

.upload-container.highlight {
    border-color: var(--primary-color);
    background-color: var(--active-step-bg);
}

.upload-icon {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.upload-container h3 {
    margin-bottom: 10px;
    color: var(--text-color);
}

.upload-container p {
    margin-bottom: 15px;
    color: var(--light-text-color);
}

.file-input-label {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.file-input-label:hover {
    background-color: var(--hover-color);
}

.file-info {
    margin-top: 15px;
    font-style: italic;
}

/* フィルター設定のスタイル */
.filter-container {
    padding: 20px 0;
}

.filter-container h3 {
    margin-bottom: 20px;
    color: var(--text-color);
}

.currency-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.currency-checkbox {
    display: flex;
    align-items: center;
    background-color: var(--background-color);
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.currency-checkbox:hover {
    background-color: var(--active-step-bg);
}

.currency-checkbox input {
    margin-right: 8px;
}

/* 表示オプションのスタイル */
.display-options {
    margin-bottom: 30px;
}

.option-group {
    display: block;
    margin-bottom: 10px;
    padding: 10px 15px;
    background-color: var(--background-color);
    border-radius: 6px;
    position: relative;
}

.option-group label {
    display: inline-block;
    margin-right: 10px;
    font-weight: 500;
}

.option-group select {
    padding: 6px 10px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background-color: white;
    font-size: 1rem;
    min-width: 120px;
}

.option-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(74, 108, 247, 0.2);
}

.option-group select:disabled {
    background-color: #e9ecef;
    cursor: not-allowed;
}

.option-checkbox {
    display: block;
    margin-bottom: 10px;
    padding: 10px 15px;
    background-color: var(--background-color);
    border-radius: 6px;
    cursor: pointer;
    position: relative;
}

.option-checkbox:hover {
    background-color: var(--active-step-bg);
}

.option-checkbox input {
    margin-right: 8px;
}

.option-checkbox input:disabled {
    cursor: not-allowed;
}

/* ツールチップのスタイル */
.tooltip {
    visibility: hidden;
    width: 250px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 8px;
    position: absolute;
    z-index: 999;
    top: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.8rem;
    font-weight: normal;
}

.tooltip::after {
    content: "";
    position: absolute;
    bottom: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: transparent transparent #333 transparent;
}

.option-checkbox:hover .tooltip {
    visibility: visible;
    opacity: 1;
}

/* シーケンス図のスタイル */
.diagram-container {
    padding: 20px 0;
}

.diagram-container h3 {
    margin-bottom: 20px;
    color: var(--text-color);
}

.diagram-preview {
    background-color: var(--background-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
    overflow-x: auto;
    min-height: 300px;
}

/* ボタンのスタイル */
.actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    margin-top: 20px;
}

.primary-button, .secondary-button {
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.primary-button {
    background-color: var(--primary-color);
    color: white;
}

.primary-button:hover {
    background-color: var(--hover-color);
}

.secondary-button {
    background-color: var(--background-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.secondary-button:hover {
    background-color: var(--border-color);
}

/* フッターのスタイル */
footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px 0;
    color: var(--light-text-color);
    font-size: 0.9rem;
}

/* タブUIのスタイル */
.input-tabs {
    margin-bottom: 20px;
}

.tab-buttons {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.tab-button {
    padding: 10px 20px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--light-text-color);
    transition: all 0.3s ease;
}

.tab-button:hover {
    color: var(--primary-color);
}

.tab-button.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

/* テキスト入力エリアのスタイル */
.text-input-container {
    padding: 20px;
    background-color: var(--background-color);
    border-radius: 8px;
    text-align: center;
}

.text-input-container h3 {
    margin-bottom: 10px;
    color: var(--text-color);
}

.text-input-container p {
    margin-bottom: 15px;
    color: var(--light-text-color);
}

#csv-text-input {
    width: 100%;
    min-height: 120px;
    height: 120px;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9rem;
    margin-bottom: 20px;
    resize: vertical;
}

#csv-text-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(74, 108, 247, 0.2);
}

.text-info {
    margin-top: 15px;
    font-style: italic;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 1.8rem;
    }
    
    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .step-title {
        font-size: 0.8rem;
    }
    
    .stepper::before {
        top: 20px;
    }
    
    .step-content {
        padding: 20px;
    }
    
    .actions {
        flex-direction: column;
    }
    
    .primary-button, .secondary-button {
        width: 100%;
    }
    
    .tab-buttons {
        flex-direction: column;
    }
    
    .tab-button {
        width: 100%;
        text-align: center;
        padding: 10px 0;
    }
}

/* ローディングインジケーター */
.loading {
    display: inline-block;
    position: relative;
    width: 80px;
    height: 20px;
}

.loading:after {
    content: " ";
    display: block;
    border-radius: 50%;
    width: 0;
    height: 0;
    margin: 8px;
    box-sizing: border-box;
    border: 12px solid var(--primary-color);
    border-color: var(--primary-color) transparent var(--primary-color) transparent;
    animation: loading 1.2s infinite;
}

@keyframes loading {
    0% {
        transform: rotate(0);
        animation-timing-function: cubic-bezier(0.55, 0.055, 0.675, 0.19);
    }
    50% {
        transform: rotate(180deg);
        animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    }
    100% {
        transform: rotate(360deg);
    }
}