/* リセットCSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* ヘッダー */
.navbar {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/mikawa-sunset.jpg');
    background-size: cover;
    background-position: center;
    padding: 0.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    height: 60px;
}

.logo h1 {
    color: #fff;
    font-size: 1.5rem;
    margin: 0;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.nav-links {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links li {
    margin-left: 1.5rem;
}

.nav-links a {
    text-decoration: none;
    color: #fff;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.nav-links a:hover {
    color: #f1c40f;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    width: 20px;
    height: 2px;
    background-color: #fff;
    margin: 2px 0;
    transition: 0.3s;
}

/* メインコンテンツの調整（ヘッダーの高さ分だけ上部にマージンを追加） */
main {
    margin-top: 60px;
}

/* ヒーローセクション */
.hero {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/mikawa-sunset.jpg');
    background-size: cover;
    background-position: center;
    height: 50vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    padding: 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: #3498db;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

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

/* 商品セクション */
.products-section {
    padding: 5rem 5%;
    background-color: #f9f9f9;
}

.products-section h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.product-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
}

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-card h3 {
    padding: 1rem;
    color: #2c3e50;
}

.product-card p {
    padding: 0 1rem 1rem;
    color: #666;
}

/* 会社概要セクション */
.about-section {
    padding: 5rem 5%;
}

.about-section h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1rem;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
}

/* お問い合わせセクション */
.contact-section {
    padding: 5rem 5%;
    background-color: #f9f9f9;
}

.contact-section h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

.submit-button {
    display: block;
    width: 100%;
    padding: 1rem;
    background-color: #3498db;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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

/* フッター */
footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 3rem 5% 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
}

.footer-section p {
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        background: #fff;
        padding: 0.5rem 0;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
    }

    .nav-links li {
        margin: 0.5rem 5%;
    }

    .hamburger {
        display: flex;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2rem;
    }
}

/* アニメーション */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero,
.product-card,
.about-content,
.contact-form {
    animation: fadeIn 1s ease-out;
}

/* チャットボット */
.chat-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 350px;
    height: 500px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.chat-container.minimized {
    transform: translateY(calc(100% - 50px));
}

.chat-header {
    background: #3498db;
    color: #fff;
    padding: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h3 {
    margin: 0;
    font-size: 1rem;
}

.minimize-btn {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0 5px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 15px;
}

.message {
    margin-bottom: 10px;
    max-width: 80%;
    padding: 8px 12px;
    border-radius: 15px;
    line-height: 1.4;
    font-size: 0.9rem;
}

.user-message {
    background: #e8f5fe;
    margin-left: auto;
    border-bottom-right-radius: 5px;
}

.bot-message {
    background: #f0f0f0;
    margin-right: auto;
    border-bottom-left-radius: 5px;
}

.chat-input {
    padding: 10px;
    border-top: 1px solid #eee;
    display: flex;
    gap: 10px;
}

.chat-input textarea {
    flex: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 5px;
    resize: none;
    height: 40px;
    font-size: 0.9rem;
}

#send-btn {
    background: #3498db;
    color: #fff;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#send-btn:hover {
    background: #2980b9;
}

/* ローディングアニメーション */
.typing-indicator {
    display: flex;
    gap: 5px;
    padding: 5px 10px;
    background: #f0f0f0;
    border-radius: 10px;
    margin-bottom: 10px;
    width: fit-content;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: #666;
    border-radius: 50%;
    animation: typing 1s infinite ease-in-out;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}