@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&family=Zen+Kaku+Gothic+New:wght@300;400;500;700&display=swap');

:root {
    --primary: #1a1a1a;
    --secondary: #f5f0eb;
    --accent: #c9a87c;
    --accent-dark: #a88b5e;
    --text: #333;
    --text-light: #666;
    --white: #fff;
    --border: #e0d5c9;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', 'Zen Kaku Gothic New', sans-serif;
    color: var(--text);
    line-height: 1.8;
    background: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
}

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

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 30px;
    width: auto;
}

.logo-text {
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--primary);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

nav a {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--text);
    transition: color 0.3s;
    font-weight: 400;
}

nav a:hover {
    color: var(--accent);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--primary);
    transition: 0.3s;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--secondary) 0%, #fff 50%, var(--secondary) 100%);
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(201, 168, 124, 0.1) 0%, transparent 70%);
    animation: float 15s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-30px, 30px) rotate(5deg); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    padding: 40px 0;
}

.hero-badge {
    display: inline-block;
    background: var(--accent);
    color: var(--white);
    padding: 8px 20px;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    margin-bottom: 30px;
    animation: slideIn 0.8s ease-out;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 300;
    line-height: 1.4;
    margin-bottom: 20px;
    animation: fadeUp 1s ease-out 0.2s both;
}

.hero-title span {
    display: block;
    font-weight: 700;
    color: var(--accent-dark);
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-desc {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 30px;
    animation: fadeUp 1s ease-out 0.4s both;
}

.hero-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 30px;
    animation: fadeUp 1s ease-out 0.6s both;
}

.hero-price small {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-light);
}

.btn-primary {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 18px 50px;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    transition: all 0.3s;
    animation: fadeUp 1s ease-out 0.8s both;
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-3px);
}

.hero-image {
    position: relative;
    animation: fadeIn 1.2s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.hero-image img {
    width: 100%;
    max-width: 500px;
    display: block;
    margin: 0 auto;
}

.hero-image::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 20px;
    background: radial-gradient(ellipse, rgba(0,0,0,0.1) 0%, transparent 70%);
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    overflow: hidden;
}

.floating-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.5;
}

.circle-1 {
    width: 300px;
    height: 300px;
    border: 1px solid var(--accent);
    top: 10%;
    right: 5%;
    animation: rotate 20s linear infinite;
}

.circle-2 {
    width: 150px;
    height: 150px;
    background: rgba(201, 168, 124, 0.1);
    bottom: 20%;
    left: 5%;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.3; }
}


section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 1.8rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    margin-bottom: 15px;
}

.section-title p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 1px;
    background: var(--accent);
    margin: 20px auto 0;
}

.features {
    background: var(--secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.feature-card {
    background: var(--white);
    padding: 50px 30px;
    text-align: center;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transition: transform 0.4s;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: 50%;
    transition: all 0.4s;
}

.feature-card:hover .feature-icon {
    background: var(--accent);
    color: var(--white);
    border-color: var(--accent);
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 15px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.8;
}

.ingredients {
    background: var(--white);
}

.ingredients-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.ingredients-image {
    position: relative;
}

.ingredients-image img {
    width: 100%;
    display: block;
}

.ingredients-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 1px solid var(--accent);
    z-index: -1;
}

.ingredients-list {
    list-style: none;
}

.ingredients-list li {
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.ingredients-list li:last-child {
    border-bottom: none;
}

.ingredients-list i {
    color: var(--accent);
    margin-top: 5px;
}

.ingredients-list strong {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.ingredients-list span {
    font-size: 0.9rem;
    color: var(--text-light);
}

.how-to-use {
    background: linear-gradient(180deg, var(--secondary) 0%, var(--white) 100%);
}

.steps {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 250px;
    max-width: 300px;
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--accent);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 25px;
    position: relative;
    z-index: 1;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 30px;
    left: calc(50% + 40px);
    width: calc(100% - 80px);
    height: 1px;
    background: var(--border);
}

.step h3 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 10px;
}

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

.reviews {
    background: var(--white);
}

.reviews-slider {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.review-card {
    background: var(--secondary);
    padding: 40px;
    position: relative;
}

.review-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 30px;
    font-size: 4rem;
    color: var(--accent);
    opacity: 0.3;
    font-family: Georgia, serif;
    line-height: 1;
}

.review-stars {
    color: var(--accent);
    margin-bottom: 15px;
}

.review-text {
    font-size: 0.95rem;
    line-height: 1.9;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.review-author {
    font-size: 0.85rem;
    color: var(--text-light);
}

.cta {
    background: var(--primary);
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta h2 {
    font-size: 2rem;
    font-weight: 300;
    margin-bottom: 15px;
}

.cta p {
    font-size: 1rem;
    opacity: 0.8;
    margin-bottom: 30px;
}

.cta .btn-primary {
    background: var(--accent);
}

.cta .btn-primary:hover {
    background: var(--white);
    color: var(--primary);
}

footer {
    background: var(--secondary);
    padding: 60px 0 30px;
}

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

.footer-brand .logo-text {
    margin-bottom: 20px;
    display: block;
}

.footer-brand p {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.8;
}

.footer-links h4 {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 20px;
    letter-spacing: 0.1em;
}

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    font-size: 0.85rem;
    color: var(--text-light);
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--text-light);
}

.disclaimer {
    font-size: 0.7rem;
    color: var(--text-light);
    margin-top: 15px;
    line-height: 1.6;
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text {
        order: 2;
    }
    
    .hero-image {
        order: 1;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ingredients-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .reviews-slider {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .header-inner {
        padding: 15px 20px;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s;
    }
    
    nav.active {
        max-height: 400px;
        border-bottom: 1px solid var(--border);
    }
    
    nav ul {
        flex-direction: column;
        gap: 0;
        padding: 20px;
    }
    
    nav li {
        padding: 10px 0;
        border-bottom: 1px solid var(--border);
    }
    
    nav li:last-child {
        border-bottom: none;
    }
    
    .hero {
        min-height: auto;
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .step:not(:last-child)::after {
        display: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-price {
        font-size: 1.5rem;
    }
    
    .btn-primary {
        padding: 15px 35px;
        font-size: 0.8rem;
    }
    
    .section-title h2 {
        font-size: 1.4rem;
    }
}