/* リセット & ベーススタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #e91e63;
    --secondary-color: #9c27b0;
    --accent-color: #ff4081;
    --text-primary: #333;
    --text-secondary: #666;
    --bg-color: #f5f5f5;
    --card-bg: #ffffff;
    --border-color: #e0e0e0;
    --success-color: #4caf50;
    --error-color: #f44336;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Meiryo', sans-serif;
    background: linear-gradient(135deg, #fce4ec 0%, #f3e5f5 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* コンテナ */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* ヘッダー */
.header {
    text-align: center;
    padding: 40px 20px;
    background: var(--card-bg);
    border-radius: 20px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    position: relative;
}

.header-top {
    position: absolute;
    top: 15px;
    right: 20px;
    display: flex;
    gap: 10px;
}

.btn-home,
.btn-logout {
    padding: 8px 16px;
    background: var(--bg-color);
    border: none;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    color: var(--text-primary);
}

.btn-home:hover,
.btn-logout:hover {
    background: var(--border-color);
}

.header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ステップインジケーター */
.step-indicator {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    padding: 0 20px;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    position: relative;
    opacity: 0.4;
    transition: opacity 0.3s;
}

.step.active {
    opacity: 1;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 60%;
    width: 80%;
    height: 2px;
    background: var(--border-color);
    z-index: -1;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-bottom: 8px;
    transition: all 0.3s;
}

.step.active .step-number {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.step-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* フォームセクション */
.form-section {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.form-step {
    display: none;
}

.form-step.active {
    display: block;
    animation: fadeIn 0.4s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-title {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    text-align: center;
}

/* オプショングリッド */
.option-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.option-card {
    background: var(--bg-color);
    border: 3px solid transparent;
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.option-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.option-card.selected {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #fce4ec 0%, #f8bbd0 100%);
}

.option-icon {
    font-size: 3rem;
    margin-bottom: 10px;
}

.option-label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* テキスト入力グループ */
.text-input-group {
    margin-top: 30px;
}

.text-input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.text-input-group input,
.text-input-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    margin-bottom: 20px;
    transition: border-color 0.3s;
}

.text-input-group input:focus,
.text-input-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* ボタン */
.btn {
    padding: 14px 32px;
    border: none;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: var(--bg-color);
    color: var(--text-primary);
}

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

/* フォームナビゲーション */
.form-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
    gap: 15px;
}

.form-navigation button {
    flex: 1;
}

/* ローディング状態 */
.loading-state {
    text-align: center;
    padding: 60px 20px;
}

.spinner {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    border: 5px solid var(--bg-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 結果表示 */
.result-state {
    text-align: center;
    padding: 20px;
}

.result-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.result-title {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 30px;
}

.slot-display {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 30px;
    border-radius: 20px;
    margin-bottom: 30px;
}

.slot-label {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 10px;
}

.slot-number {
    font-size: 5rem;
    font-weight: bold;
}

.fragrance-info {
    background: var(--bg-color);
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 20px;
}

.fragrance-info h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.brand {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.reason-box {
    background: linear-gradient(135deg, #fff9c4 0%, #fff59d 100%);
    padding: 20px;
    border-radius: 15px;
    border-left: 5px solid #fbc02d;
    margin-bottom: 30px;
}

.reason-label {
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.reason-box p {
    font-size: 1.1rem;
    color: var(--text-primary);
    line-height: 1.8;
}

.action-buttons {
    margin-top: 30px;
}

/* エラー状態 */
.error-state {
    text-align: center;
    padding: 60px 20px;
}

.error-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.error-state h3 {
    color: var(--error-color);
    margin-bottom: 15px;
}

.error-state p {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

/* フッター */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* レスポンシブ */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }
    
    .form-section {
        padding: 25px;
    }
    
    .option-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 10px;
    }
    
    .step-label {
        font-size: 0.7rem;
    }
    
    .slot-number {
        font-size: 4rem;
    }
}