@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;700;900&display=swap');

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Serif JP', serif;
    line-height: 1.6;
    color: #000000;
    background-color: #ffffff;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}

.header.show {
    transform: translateY(0);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    display: block;
}

.logo img {
    height: 60px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo a:hover img {
    transform: scale(1.05);
}

.nav-list {
    display: flex;
    gap: 30px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-list a {
    font-size: clamp(0.9rem, 0.8rem + 0.5vw, 1.1rem);
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-list a:hover {
    color: #DC2626;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: #ffffff;
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.9);
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-list {
    text-align: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav-list li {
    margin-bottom: 30px;
}

.mobile-nav-link {
    font-size: clamp(1.5rem, 1.2rem + 1.5vw, 2.5rem);
    font-weight: 700;
    color: #fbfbfb;
    text-decoration: none;
    transition: color 0.3s ease;
}

.mobile-nav-link:hover {
    color: #DC2626;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.1);
    filter: brightness(0.4);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: left;
    color: #ffffff;
    width: 100%;
    padding: 0 80px;
    display: flex;
    align-items: center;
    min-height: 100vh;
}

.hero-text {
    max-width: 600px;
    margin-left: 60px;
}

.hero-logo {
    margin-bottom: 20px;
}

.hero-logo img {
    max-width: 400px;
    width: 100%;
    height: auto;
    filter: drop-shadow(3px 3px 6px rgba(0, 0, 0, 0.8));
    transition: transform 0.3s ease;
}

.hero-logo img:hover {
    transform: scale(1.05);
}

.tagline {
    font-size: clamp(1.2rem, 2.5vw, 2rem);
    color: #ffffff;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    white-space: nowrap;
}

.description {
    font-size: clamp(1rem, 1.5vw, 1.3rem);
    color: #ffffff;
    margin-bottom: 30px;
    line-height: 1.8;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8);
}

.cta-button {
    background: linear-gradient(45deg, #dc2626, #ef4444);
    color: #ffffff;
    padding: 18px 40px;
    border: none;
    border-radius: 50px;
    font-size: clamp(1rem, 1.2vw, 1.3rem);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.4);
    text-shadow: none;
    border: 2px solid transparent;
}

.cta-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.6);
    background: linear-gradient(45deg, #b91c1c, #dc2626);
    border-color: #ffffff;
}

/* Featured Ramen Section */
.featured-ramen {
    padding: 80px 0;
    background: #ffffff;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 900;
    color: #000000;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: #dc2626;
    border-radius: 2px;
}

.ramen-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.ramen-card {
    background: #ffffff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid #f5f5f5;
}

.ramen-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
    border-color: #dc2626;
}

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

.ramen-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #dc2626;
    padding: 15px 15px 8px;
}

.ramen-card p {
    padding: 0 15px 15px;
    color: #333333;
    line-height: 1.6;
    font-size: 0.9rem;
}

/* About Section */
.about {
    padding: 80px 0;
    background: #f8f9fa;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about h2 {
    font-size: 2.2rem;
    color: #000000;
    margin-bottom: 20px;
    font-weight: 900;
}

.highlight {
    font-size: 1.2rem;
    color: #dc2626;
    font-weight: 700;
    margin-bottom: 20px;
}

.about p {
    margin-bottom: 20px;
    color: #333333;
    line-height: 1.8;
}

.about-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

/* Menu Variety Section */
.menu-variety {
    padding: 80px 0;
    background: #000000;
    color: #ffffff;
}

.menu-variety .section-title {
    color: #ffffff;
}

.section-description {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 50px;
    color: #ffffff;
    line-height: 1.8;
}

.menu-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.menu-category {
    background: #ffffff;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border: 2px solid #f5f5f5;
}

.menu-category:hover {
    transform: translateY(-5px);
    background: #ffffff;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
    border-color: #dc2626;
}

.menu-category h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #dc2626;
    font-weight: 700;
}

.menu-category p {
    color: #333333;
}

/* Menu Images */
.menu-images {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.menu-image-item {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.menu-image-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(255, 255, 255, 0.2);
}

.menu-image-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}

/* Usage Scene Section */
.usage-scene {
    padding: 80px 0;
    background: #f8f9fa;
}

.usage-scene .section-title {
    color: #000000;
}

.usage-scene .section-description {
    color: #000000;
    font-size: clamp(1.3rem, 2vw, 1.8rem);
    font-weight: 700;
}

.usage-scene-content {
    display: flex;
    justify-content: center;
    margin-top: 50px;
}

.usage-scene-image img {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    display: block;
    margin: 0 auto;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: #dc2626;
    color: #ffffff;
}

.contact .section-title {
    color: #ffffff;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-top: 50px;
}

.contact-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.contact-list {
    list-style: none;
    padding: 0;
    margin: 0;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 15px;
    padding: 40px;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.contact-list li {
    font-size: 1.1rem;
    color: #ffffff;
    margin-bottom: 20px;
    line-height: 1.6;
}

.contact-list li:last-child {
    margin-bottom: 0;
}

.contact-list li:first-child {
    font-size: 1.8rem;
    font-weight: 900;
    color: #ffffff;
    margin-bottom: 30px;
}

.contact-list strong {
    color: #ffffff;
    font-weight: 700;
}

/* Virus Prevention Section */
.virus-prevention {
    padding: 40px 0;
    background: #f8f9fa;
}

.virus-prevention .section-title {
    color: #666666;
    font-size: 1.8rem;
    margin-bottom: 30px;
}

.virus-prevention .section-title::after {
    background: #999999;
    width: 50px;
    height: 2px;
}

.virus-prevention-content {
    max-width: 800px;
    margin: 0 auto;
}

.virus-prevention-intro {
    text-align: center;
    margin-bottom: 30px;
}

.virus-prevention-main-text {
    font-size: clamp(1rem, 0.9rem + 0.5vw, 1.2rem);
    font-weight: 600;
    color: #333333;
    margin-bottom: 15px;
    line-height: 1.6;
}

.virus-prevention-sub-text {
    font-size: clamp(0.9rem, 0.8rem + 0.3vw, 1rem);
    color: #666666;
    line-height: 1.8;
}

.virus-prevention-measures {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.measure-item {
    background: #ffffff;
    border-radius: 15px;
    padding: 20px 15px;
    text-align: center;
    border: 1px solid #e5e7eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
}

.measure-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border-color: #dc2626;
}

.measure-icon {
    font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
    margin-bottom: 10px;
}

.measure-title {
    font-size: clamp(0.8rem, 0.7rem + 0.3vw, 1rem);
    font-weight: 600;
    color: #333333;
    line-height: 1.4;
    text-align: center;
}

/* Contact Form Section */
.contact-form {
    padding: 80px 0;
    background: linear-gradient(135deg, #000000 0%, #333333 100%);
    color: #ffffff;
}

.contact-form .section-title {
    color: #ffffff;
}

.contact-form-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-form-intro {
    text-align: center;
    margin-bottom: 40px;
}

.contact-form-intro p {
    font-size: 1.1rem;
    color: #ffffff;
    line-height: 1.6;
}

.form {
    background: rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(220, 38, 38, 0.3);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #ffffff;
}

.required {
    color: #dc2626;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    font-size: 1rem;
    background: #ffffff;
    color: #000000;
    transition: all 0.3s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: #dc2626;
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.3);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
}

.form-submit {
    width: 100%;
    background: #dc2626;
    color: #ffffff;
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.5);
    background: #b91c1c;
}

/* Footer */
.footer {
    background: #000000;
    color: #ffffff;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-logo h3 {
    font-size: 1.8rem;
    font-weight: 900;
    color: #dc2626;
    margin-bottom: 20px;
}

.footer-details {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-details p {
    color: #ffffff;
    line-height: 1.6;
    font-size: 0.9rem;
}

.footer-phone {
    font-size: 1.3rem !important;
    font-weight: 700;
    color: #dc2626 !important;
    margin-top: 10px;
}

.tel-prefix {
    font-size: 1rem;
    margin-right: 5px;
}

.footer-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-nav li {
    margin-bottom: 10px;
}

.footer-nav a {
    color: #ffffff;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.9rem;
}

.footer-nav a:hover {
    color: #dc2626;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #333333;
}

.footer-bottom p {
    color: #ffffff;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }

    .hero-content {
        padding: 0 20px;
        text-align: center;
    }

    .hero-text {
        margin-left: 0;
        max-width: 100%;
    }

    .hero-logo img {
        max-width: 300px;
    }

    .tagline {
        white-space: normal;
    }

    /* スマホ用背景画像 */
    .hero-background img {
        content: url('./img/hero_sf.png');
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .ramen-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .menu-images {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .virus-prevention-measures {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 480px) {
    .hero-logo img {
        max-width: 250px;
    }

    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 20px 0;
    }

    .featured-ramen,
    .about,
    .menu-variety,
    .usage-scene,
    .virus-prevention,
    .contact,
    .contact-form {
        padding: 60px 0;
    }

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

    .menu-image-item img {
        height: 200px;
    }

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

    .form {
        padding: 30px 20px;
    }

    .footer {
        padding: 40px 0 20px;
    }
}