/* カスタムスタイル */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}

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

/* 選択肢ボタンのホバーエフェクト */
.option-button {
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.option-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.option-button.selected {
    border-color: #8B9D83;
    background-color: rgba(139, 157, 131, 0.1);
}

/* プログレスバーアニメーション */
.progress-animate {
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 結果画面のスタイル別背景 */
.result-natural {
    background: linear-gradient(135deg, #F5F0E8 0%, #8B9D83 100%);
}

.result-nordic {
    background: linear-gradient(135deg, #F9F7F4 0%, #9BB0C1 100%);
}

.result-hotel {
    background: linear-gradient(135deg, #D4CFC7 0%, #D4B896 100%);
}

.result-elegant {
    background: linear-gradient(135deg, #F2E6E9 0%, #E6D7B7 100%);
}

.result-japandi {
    background: linear-gradient(135deg, #B8AFA7 0%, #8B7355 100%);
}

.result-asian {
    background: linear-gradient(135deg, #C4A484 0%, #7A8471 100%);
}

/* スマートフォン最適化 */
@media (max-width: 640px) {
    .option-button {
        padding: 1rem;
        font-size: 0.95rem;
        margin-bottom: 0.5rem;
    }
    
    h1 {
        font-size: 1.75rem !important;
        line-height: 1.4;
    }
    
    .question-text {
        font-size: 1.125rem;
        line-height: 1.6;
    }
    
    /* スタート画面のスマホ最適化 */
    .start-title {
        font-size: 1.5rem !important;
        padding: 0 1rem;
    }
    
    .start-description {
        font-size: 1rem;
        padding: 0 0.5rem;
    }
    
    .start-button {
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
    }
    
    /* 質問画面のスマホ最適化 */
    .question-container {
        padding: 1rem;
    }
    
    .progress-container {
        margin-bottom: 1.5rem;
    }
    
    .question-card {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .navigation-buttons {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .nav-button {
        width: 100%;
        order: 2;
    }
    
    .back-button {
        order: 1;
        background: transparent !important;
        color: #6B7280 !important;
        font-weight: normal;
    }
    
    /* 結果画面のスマホ最適化 */
    .result-container {
        padding: 1rem;
    }
    
    .result-card {
        padding: 1.5rem;
    }
    
    .result-details-grid {
        grid-template-columns: 1fr !important;
        gap: 0.75rem;
    }
    
    .result-detail-item {
        padding: 1rem;
        font-size: 0.875rem;
    }
    
    .cta-buttons {
        gap: 0.75rem;
    }
    
    .cta-button {
        width: 100%;
        padding: 1rem;
        font-size: 1rem;
    }
}

/* タブレット最適化 */
@media (min-width: 641px) and (max-width: 1024px) {
    .container-tablet {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .option-button {
        padding: 1.25rem;
    }
    
    .result-details-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* 横向きスマートフォン対応 */
@media (max-width: 896px) and (orientation: landscape) {
    .min-h-screen {
        min-height: 100vh;
    }
    
    .start-container, .question-container, .result-container {
        padding-top: 2rem;
        padding-bottom: 2rem;
    }
    
    .question-card {
        padding: 1rem;
    }
}

/* 小さなスマートフォン対応 */
@media (max-width: 375px) {
    .start-title {
        font-size: 1.25rem !important;
    }
    
    .option-button {
        font-size: 0.875rem;
        padding: 0.875rem;
    }
    
    .question-text {
        font-size: 1rem;
    }
    
    .result-detail-item {
        padding: 0.75rem;
        font-size: 0.8rem;
    }
}

/* カスタムボタンスタイル */
.btn-primary {
    background: linear-gradient(135deg, #8B9D83 0%, #7A8471 100%);
    border: none;
    color: white;
    font-weight: 500;
    letter-spacing: 0.025em;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #7A8471 0%, #6B7362 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(139, 157, 131, 0.3);
}

.btn-secondary {
    background: linear-gradient(135deg, #E5E0DA 0%, #D4CFC7 100%);
    border: none;
    color: #4B5563;
    font-weight: 500;
    letter-spacing: 0.025em;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #D4CFC7 0%, #C4BFB8 100%);
    transform: translateY(-1px);
}

/* テキストの読みやすさ向上 */
.text-readable {
    line-height: 1.8;
    letter-spacing: 0.025em;
}

/* カードスタイル */
.card-soft {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}