:root {
    --bg-color: #fdfbf7;
    --text-color: #4a4a4a;
    --heading-color: #2d2d2d;
    --accent-color: #d4a5a5;
    /* Dusty Rose */
    --accent-hover: #c08e8e;
    --secondary-color: #9e8fb2;
    /* Muted Lavender */
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.6);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.05);
    --font-main: 'Noto Sans JP', sans-serif;
    --font-heading: 'Playfair Display', serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.8;
}

/* Typography */
h1,
h2,
h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--heading-color);
    letter-spacing: 0.02em;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 1rem auto 0;
}

p {
    font-size: 1rem;
    color: #666;
    margin-bottom: 1.5rem;
}

/* Layout */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 6rem 0;
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 1000;
    transition: all 0.3s ease;
    background: rgba(253, 251, 247, 0.8);
    backdrop-filter: blur(10px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--heading-color);
    text-decoration: none;
    letter-spacing: 0.05em;
}

.logo span {
    color: var(--accent-color);
}

.cta-button {
    background-color: var(--accent-color);
    color: #fff;
    padding: 0.8rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(212, 165, 165, 0.4);
}

.cta-button:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212, 165, 165, 0.6);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    /* Header height */
}

.hero-content {
    flex: 1;
    z-index: 2;
    padding-right: 2rem;
}

.hero-image {
    flex: 1;
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px 0 20px 0;
    box-shadow: 20px 20px 0 rgba(212, 165, 165, 0.2);
}

/* Features */
.features {
    background-color: #fff;
}

.section-subtitle {
    text-align: center;
    color: var(--accent-color);
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    display: block;
}

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

.feature-card {
    background: #fff;
    padding: 3rem 2rem;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-soft);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    padding: 1rem;
    background-color: #fff5f5;
    border-radius: 50%;
    color: var(--accent-color);
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* Science/Benefits Section */
.science {
    background-color: #f8f5f2;
    text-align: center;
}

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

.benefit-list {
    list-style: none;
    margin: 3rem 0;
    text-align: left;
    display: inline-block;
}

.benefit-list li {
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
    font-size: 1.1rem;
}

.benefit-list li::before {
    content: '✓';
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Process Section */
.process {
    text-align: center;
}

.process-steps {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 4rem;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 250px;
}

.step-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: rgba(212, 165, 165, 0.3);
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    padding: 4rem 0;
    background-color: #fff;
    text-align: center;
    color: #888;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        flex-direction: column-reverse;
        text-align: center;
        padding-top: 100px;
        height: auto;
    }

    .hero-content {
        padding-right: 0;
        margin-top: 3rem;
    }

    h1 {
        font-size: 2.5rem;
    }

    .process-steps {
        flex-direction: column;
    }
}