/* Reset & Base Styles */
:root {
    --primary-color: #D97757;
    /* Terracotta - Warmth, Energy */
    --primary-dark: #B55D3F;
    --secondary-color: #8C9E8C;
    /* Sage Green - Nature, Peace */
    --bg-color: #FDFBF7;
    /* Off-white - Cleanliness */
    --text-color: #4A4A4A;
    /* Dark Grey - Readability */
    --light-text: #7A7A7A;
    --white: #FFFFFF;
    --border-radius: 8px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
}

h1,
h2,
h3,
h4 {
    font-family: 'Noto Serif JP', serif;
    font-weight: 600;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 40px;
    color: var(--primary-dark);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--secondary-color);
    margin: 15px auto 0;
}

.section-desc {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
    font-size: 1.1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: bold;
    text-align: center;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(217, 119, 87, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 15px 40px;
    font-size: 1.2rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Header */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    height: 70px;
    display: flex;
    align-items: center;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo a {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-dark);
}

.nav ul {
    display: flex;
    gap: 30px;
}

.nav a {
    font-size: 0.95rem;
    font-weight: 500;
}

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

.header-cta {
    display: none;
}

@media (min-width: 768px) {
    .header-cta {
        display: block;
    }
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    background-image: url('https://images.unsplash.com/photo-1493934558415-9d19f0b2b4d2?q=80&w=2054&auto=format&fit=crop');
    /* Placeholder: Warm Interior */
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    margin-top: 70px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    /* Darken for readability */
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-subtitle {
    font-size: 1.2rem;
    display: block;
    margin-bottom: 10px;
    font-weight: normal;
}

.hero-title {
    font-size: 2.5rem;
    line-height: 1.4;
    margin-bottom: 30px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-title .highlight {
    color: #FFD700;
    /* Gold for emphasis */
}

.hero-text {
    font-size: 1.1rem;
    margin-bottom: 40px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* Problem Section */
.problem-section {
    background-color: var(--white);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.problem-card {
    background: var(--bg-color);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: 0.3s;
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.icon-box {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.problem-card h3 {
    margin-bottom: 15px;
    color: var(--primary-dark);
}

/* Solution Section */
.mechanism-box {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-top: 40px;
}

.mechanism-box h3 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 1.5rem;
    color: var(--primary-dark);
}

.mechanism-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

@media (min-width: 768px) {
    .mechanism-diagram {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }
}

.step {
    flex: 1;
    text-align: center;
    padding: 20px;
}

.step-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.step h4 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.arrow {
    display: none;
    font-size: 2rem;
    color: var(--light-text);
    padding-top: 30px;
}

@media (min-width: 768px) {
    .arrow {
        display: block;
    }
}

.mechanism-note {
    margin-top: 40px;
    background: #F0F4F0;
    /* Light Sage */
    padding: 20px;
    border-radius: var(--border-radius);
}

.mechanism-note p {
    margin-bottom: 10px;
}

.mechanism-note i {
    color: var(--secondary-color);
    margin-right: 10px;
}

/* Trust Section */
.trust-section {
    background-color: var(--bg-color);
}

.trust-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

@media (min-width: 768px) {
    .trust-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.trust-content h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-dark);
}

.trust-content p {
    margin-bottom: 20px;
}

.trust-points ul li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.trust-points i {
    color: var(--primary-color);
    margin-right: 10px;
    margin-top: 5px;
}

.img-placeholder {
    background-color: #E0E0E0;
    height: 300px;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--light-text);
    font-size: 1.2rem;
}

.img-placeholder i {
    font-size: 3rem;
    margin-bottom: 10px;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 80px 0;
}

.cta-box {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.cta-box h2 {
    margin-bottom: 20px;
    color: var(--white);
}

.cta-box p {
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 40px;
}

@media (min-width: 480px) {
    .contact-methods {
        flex-direction: row;
        justify-content: center;
    }
}

.contact-btn {
    background: var(--white);
    color: var(--primary-dark);
    padding: 15px 25px;
    border-radius: 50px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.contact-btn.line {
    background: #06C755;
    color: var(--white);
}

.contact-form {
    background: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    color: var(--text-color);
    text-align: left;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
}

.contact-form button {
    margin-top: 10px;
}

/* Footer */
.footer {
    background: #333;
    color: #aaa;
    padding: 30px 0;
    text-align: center;
    font-size: 0.9rem;
}

/* FAQ Section */
.faq-section {
    background-color: var(--white);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item h3 {
    font-size: 1.2rem;
    color: var(--primary-dark);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.faq-item h3::before {
    content: 'Q.';
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-right: 10px;
    font-weight: bold;
}

.faq-item p {
    padding-left: 35px;
    color: var(--text-color);
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .nav {
        display: none;
        /* Simple hide for MVP, normally would add hamburger */
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .section {
        padding: 50px 0;
    }
}
/* Area Section */
.area-section {
    background-color: var(--white);
}

.area-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.area-card {
    background: linear-gradient(to bottom right, #fff, #fdfbf7);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: 0 10px 30px rgba(217, 119, 87, 0.15);
    position: relative;
    overflow: hidden;
}

/* Decorative background element */
.area-card::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    background: var(--primary-color);
    opacity: 0.05;
    border-radius: 50%;
}

.area-icon {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.area-card h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--primary-dark);
}

.area-highlight {
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 1.1rem;
    margin-bottom: 20px;
    display: block;
}

.area-desc {
    margin-bottom: 30px;
    line-height: 1.8;
}

.area-badge {
    display: inline-block;
    background: #F0F4F0; /* Light Sage */
    color: var(--primary-dark);
    padding: 8px 15px;
    border-radius: 20px;
    margin: 5px;
    font-weight: bold;
    font-size: 0.95rem;
}

.area-badge i {
    color: var(--secondary-color);
    margin-right: 5px;
}