/* ==================================
   Base & Variables (MUJI Style)
================================== */
:root {
    --brand-color: #7f0019; /* MUJI dark red */
    --text-main: #333333;
    --text-light: #666666;
    --bg-main: #ffffff;
    --bg-sub: #f7f7f7;   /* Subtle grey for alternating sections */
    --border-color: #e5e5e5;
    
    /* Clean, universal sans-serif font */
    --font-base: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
    
    --transition: all 0.3s ease;
    --header-height: 70px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-base);
    color: var(--text-main);
    line-height: 1.8;
    background-color: var(--bg-main);
    -webkit-font-smoothing: antialiased;
    letter-spacing: 0.03em;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* ==================================
   Typography
================================== */
h1, h2, h3, h4 {
    font-weight: normal;  /* MUJI typically avoids overly heavy weights for a clean look */
    line-height: 1.5;
    color: var(--text-main);
}

/* ==================================
   Layout & Utilities
================================== */
.container {
    width: 90%;
    max-width: 1000px; /* Marginally narrower for better reading linewidth */
    margin: 0 auto;
}

.section {
    position: relative;
}

.padding-y {
    padding: 80px 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.bg-light { background-color: var(--bg-sub); }
.bg-accent { background-color: var(--brand-color); }
.text-white { color: #fff; }

.section-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 20px;
    letter-spacing: 0.1em;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 30px;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 40px;
}

.btn-primary {
    display: inline-block;
    padding: 15px 40px;
    background-color: var(--brand-color);
    color: #fff !important;
    border: 1px solid var(--brand-color);
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    border-radius: 2px; /* Very subtle rounding */
}
.btn-primary:hover {
    background-color: transparent;
    color: var(--brand-color) !important;
}

/* ==================================
   Header
================================== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: #fff;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0 4%;
}

.logo a {
    font-size: 1.5rem;
    font-weight: normal;
    color: var(--text-main);
    display: flex;
    align-items: center;
}
.logo span {
    font-size: 1.1rem;
    margin-left: 5px;
}
.logo strong {
    color: var(--brand-color);
}

.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu a {
    font-size: 0.9rem;
    color: var(--text-main);
}
.nav-menu a:hover {
    color: var(--text-light);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 25px;
    height: 16px;
    cursor: pointer;
    z-index: 1001;
}
.menu-toggle .bar {
    width: 100%;
    height: 1px;
    background-color: var(--text-main);
    transition: var(--transition);
}

/* ==================================
   Hero Section
================================== */
.hero {
    position: relative;
    padding-top: var(--header-height);
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: var(--bg-sub);
}

.hero-bg {
    width: 100%;
    max-height: 70vh;
    overflow: hidden;
}
.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    color: var(--text-main);
    max-width: 800px;
    margin: 60px auto;
    text-align: center;
    padding: 0 20px;
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 20px;
    display: block;
}

.hero-title {
    font-size: 2.2rem;
    margin-bottom: 25px;
    line-height: 1.6;
}

.hero-desc {
    font-size: 1.05rem;
    line-height: 2;
    color: var(--text-light);
}

/* ==================================
   About Section
================================== */
.layout-split {
    display: flex;
    align-items: center;
    gap: 80px;
}
.layout-split > div {
    flex: 1;
}

.text-body {
    font-size: 1rem;
    color: var(--text-main);
    margin-top: 30px;
    line-height: 2;
}

/* Removal of fancy accents for MUJI style */
.img-box img {
    border: 1px solid var(--border-color);
}

/* ==================================
   Quality Section
================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--text-light);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}
.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ==================================
   Banner Section
================================== */
.banner-section {
    position: relative;
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
}
.banner-section img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}
.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #000; /* Flat black overlay */
    opacity: 0.3;
    z-index: 0;
}
.banner-content {
    position: relative;
    z-index: 1;
}
.banner-title {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #fff;
}

/* ==================================
   Service / Area Section
================================== */
.area-info {
    display: flex;
    flex-wrap: wrap;
    gap: 0; /* MUJI often uses touching borders or minimal gaps */
    justify-content: center;
    border-top: 1px solid var(--border-color);
    border-left: 1px solid var(--border-color);
}
.area-item {
    background-color: #fff;
    padding: 40px 30px;
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    flex: 1;
    min-width: 300px;
    text-align: center;
}
.area-item h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--text-light);
}

/* ==================================
   Contact Section
================================== */
#contact {
    border-top: 1px solid var(--border-color);
}
.contact-title {
    font-size: 1.8rem;
    margin-bottom: 20px;
}
.contact-desc {
    font-size: 1rem;
    color: var(--text-main);
    max-width: 700px;
    margin: 0 auto 40px;
}

.contact-methods {
    display: flex;
    justify-content: center;
}

.method-box {
    background: var(--bg-sub);
    padding: 50px;
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 500px;
}
.method-label {
    display: block;
    color: var(--text-light);
    margin-bottom: 10px;
    font-size: 0.9rem;
}
.tel-number {
    display: block;
    font-size: 2.5rem;
    color: var(--text-main);
    line-height: 1;
    margin-bottom: 15px;
}
.tel-number:hover {
    color: var(--brand-color);
}
.hours {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ==================================
   Footer
================================== */
.footer {
    background-color: var(--bg-sub);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    text-align: center;
}
.footer-bottom {
    font-size: 0.8rem;
    color: var(--text-light);
}

/* ==================================
   Animations
================================== */
/* Simplify animations for MUJI feel (just simple fades, less movement) */
.fade-in-up, .fade-in-left, .fade-in-right {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease, transform 1s ease;
}
.fade-in-up.active, .fade-in-left.active, .fade-in-right.active {
    opacity: 1;
    transform: translate(0);
}

/* ==================================
   Responsive (Mobile)
================================== */
.sp-only { display: none; }

@media (max-width: 992px) {
    .layout-split {
        flex-direction: column;
        gap: 40px;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .pc-only { display: none !important; }
    .sp-only { display: inline !important; }
    
    body {
        font-size: 15px; /* Optimize readability */
    }
    
    .padding-y {
        padding: 50px 0; /* Less vertical margin on mobile */
    }
    
    .menu-toggle { display: flex; }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: 0;
        overflow: hidden;
        background-color: #fff;
        transition: var(--transition);
        border-bottom: 1px solid var(--border-color);
    }
    .nav-menu.active {
        height: auto;
        padding: 20px 0;
    }
    .nav-menu ul {
        flex-direction: column;
        gap: 20px;
    }
    
    .hero-title {
        font-size: 1.6rem;
        line-height: 1.6;
    }
    .hero-desc {
        font-size: 0.95rem;
        line-height: 1.8;
        padding: 0 10px;
    }
    .section-title, .contact-title, .banner-title {
        font-size: 1.4rem;
        line-height: 1.5;
    }
    .text-body {
        font-size: 0.95rem;
        line-height: 2.0; /* Better line height for long reads */
    }
    .tel-number {
        font-size: 1.8rem;
    }
    .method-box {
        padding: 30px 15px;
    }
    .area-info {
        flex-direction: column;
    }
}