/* 全体のスタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Noto Serif JP', 'Playfair Display', serif;
}

html {
    scroll-behavior: smooth;
}

body {
    line-height: 1.8;
    color: #2c3e50;
    background-color: #fafafa;
}

/* ヘッダーとナビゲーション */
header {
    position: fixed;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

header.scroll-down {
    transform: translateY(-100%);
}

header.scroll-up {
    transform: translateY(0);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: #c0392b;
    letter-spacing: 2px;
}

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

.nav-links li {
    margin-left: 3rem;
}

.nav-links a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #c0392b;
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: #c0392b;
}

/* ハンバーガーメニュー */
.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 2px;
    background-color: #2c3e50;
    margin: 6px;
    transition: all 0.3s ease;
}

/* ヒーローセクション */
#hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)),
                url('images/hero-burger.jpg') no-repeat center center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
}

#hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.3) 100%);
}

.hero-content {
    max-width: 900px;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    line-height: 1.8;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.cta-button {
    display: inline-block;
    padding: 1.2rem 3rem;
    background-color: #c0392b;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.cta-button:hover {
    background-color: transparent;
    border-color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* メニューセクション */
#menu {
    padding: 8rem 2rem;
    background-color: #fff;
}

#menu h2 {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 3rem;
    color: #2c3e50;
    position: relative;
}

#menu h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: #c0392b;
}

.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.menu-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
}

.menu-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.menu-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.menu-item:hover img {
    transform: scale(1.05);
}

.menu-item h3 {
    padding: 1.5rem 1.5rem 0.5rem;
    font-size: 1.8rem;
    color: #2c3e50;
}

.menu-item p {
    padding: 0 1.5rem;
    color: #666;
    font-size: 1.1rem;
    line-height: 1.6;
}

.menu-item .price {
    display: block;
    padding: 1.5rem;
    font-weight: 700;
    color: #c0392b;
    font-size: 1.4rem;
}

/* コンセプトセクション */
#about {
    padding: 8rem 2rem;
    background-color: #f8f9fa;
}

.about-content {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
}

.about-content h2 {
    margin-bottom: 3rem;
    font-size: 3rem;
    color: #2c3e50;
    position: relative;
}

.about-content h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: #c0392b;
}

.about-content > p {
    font-size: 1.2rem;
    line-height: 2;
    color: #666;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.feature {
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.feature i {
    font-size: 3rem;
    color: #c0392b;
    margin-bottom: 1.5rem;
}

.feature h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.feature p {
    color: #666;
    line-height: 1.8;
}

/* 予約セクション */
#contact {
    padding: 8rem 2rem;
    background-color: #fff;
}

#contact h2 {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 3rem;
    color: #2c3e50;
    position: relative;
}

#contact h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: #c0392b;
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 4rem;
    max-width: 1400px;
    margin: 0 auto;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
    padding: 1.2rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
    border-color: #c0392b;
    outline: none;
    box-shadow: 0 0 0 2px rgba(192, 57, 43, 0.1);
}

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

.submit-button {
    padding: 1.2rem;
    background-color: #c0392b;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 1px;
}

.submit-button:hover {
    background-color: #a93226;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(192, 57, 43, 0.2);
}

.contact-info {
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 15px;
}

.contact-info h3 {
    margin-bottom: 1.5rem;
    color: #2c3e50;
    font-size: 1.4rem;
}

.contact-info p {
    margin-bottom: 2rem;
    color: #666;
    line-height: 1.8;
}

.contact-info .note {
    font-size: 0.9rem;
    color: #999;
    font-style: italic;
}

/* フッター */
footer {
    background-color: #2c3e50;
    color: white;
    padding: 3rem 2rem;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.social-links {
    margin-bottom: 2rem;
}

.social-links a {
    color: white;
    font-size: 1.8rem;
    margin: 0 1rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    color: #c0392b;
    transform: translateY(-3px);
}

/* レスポンシブデザイン */
@media screen and (max-width: 768px) {
    .nav-links {
        display: none;
        width: 100%;
        position: absolute;
        top: 80px;
        right: 0;
        background: white;
        flex-direction: column;
        align-items: center;
        padding: 1rem 0;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }

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

    .nav-links li {
        margin: 1rem 0;
    }

    .burger {
        display: block;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content p {
        font-size: 1.2rem;
    }

    .menu-grid {
        grid-template-columns: 1fr;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }
}

/* アニメーション */
@keyframes navLinkFade {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toggle .line1 {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.toggle .line2 {
    opacity: 0;
}

.toggle .line3 {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* チャットボットスタイル */
.chatbot-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 350px;
    height: 500px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

.chatbot-header {
    background: #333;
    color: white;
    padding: 15px;
    border-radius: 10px 10px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chatbot-header h3 {
    margin: 0;
    font-size: 1.1em;
}

.minimize-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
}

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

.message {
    margin-bottom: 15px;
    padding: 10px 15px;
    border-radius: 15px;
    max-width: 80%;
}

.message.bot {
    background: #f0f0f0;
    margin-right: auto;
}

.message.user {
    background: #007bff;
    color: white;
    margin-left: auto;
}

.chatbot-input {
    padding: 15px;
    border-top: 1px solid #eee;
    display: flex;
    gap: 10px;
}

.chatbot-input input {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 20px;
    outline: none;
}

.chatbot-input button {
    background: #007bff;
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    transition: background 0.3s;
}

.chatbot-input button:hover {
    background: #0056b3;
}

/* チャットボット最小化時のスタイル */
.chatbot-container.minimized {
    height: 60px;
}

.chatbot-container.minimized .chatbot-messages,
.chatbot-container.minimized .chatbot-input {
    display: none;
}