:root {
    /* Wa-Modern Color Palette */
    --color-bg: #f4f1ea;
    /* Washi white */
    --color-paper: #ffffff;
    --color-text: #3e3a39;
    /* Sumi black */
    --color-text-light: #6e6b65;
    --color-accent: #9e4e3e;
    /* Bengara red */
    --color-sub: #2b3a42;
    /* Tetsukon navy */

    --font-serif: 'Zen Old Mincho', serif;
    --font-sans: 'Zen Kaku Gothic New', sans-serif;

    --easing: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.8;
    letter-spacing: 0.05em;
}

/* Background Texture */
.japanese-pattern-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%239c92ac' fill-opacity='0.03' fill-rule='evenodd'%3E%3Ccircle cx='3' cy='3' r='3'/%3E%3Ccircle cx='13' cy='13' r='3'/%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
    z-index: -1;
}

/* Typography Utilities */
h1,
h2,
h3 {
    font-family: var(--font-serif);
    font-weight: 500;
}

.vertical-text {
    writing-mode: vertical-rl;
    text-orientation: upright;
    letter-spacing: 0.3em;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
}

.bg-paper {
    background-color: var(--color-paper);
    padding: 80px 60px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.03);
}

/* Header & Hero */
.header {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.header-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 10;
}

.header-brand {
    display: flex;
    flex-direction: row-reverse;
    align-items: flex-start;
    gap: 60px;
}

.tagline {
    font-family: var(--font-serif);
    font-size: 2rem;
    height: 400px;
    border-right: 1px solid var(--color-accent);
    padding-right: 40px;
    line-height: 2;
    color: var(--color-text);
}

.tagline .space {
    height: 1em;
    display: inline-block;
}

.brand-name-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    writing-mode: horizontal-tb;
    /* Reset for logo group */
}

.brand-logo {
    width: 200px;
    height: auto;
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.brand-name {
    font-size: 3rem;
    letter-spacing: 0.1em;
    margin-top: 15px;
}

.brand-sub {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    letter-spacing: 0.25em;
    color: var(--color-accent);
    text-transform: uppercase;
}

.nav-menu {
    margin-top: 60px;
}

.nav-menu ul {
    list-style: none;
    display: flex;
    gap: 60px;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text);
    font-family: var(--font-serif);
    font-size: 1.25rem;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    transition: color 0.3s ease;
}

.nav-link span {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--color-accent);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -15px;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width 0.4s var(--easing);
}

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

.nav-link:hover::after {
    width: 100%;
}

/* Sections */
.section {
    padding: 120px 0;
}

.section-title-wrapper {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 60px;
    position: relative;
}

.section-title-wrapper.right {
    align-items: flex-end;
}

.section-number {
    font-family: var(--font-serif);
    font-size: 3rem;
    color: rgba(0, 0, 0, 0.05);
    line-height: 1;
    position: absolute;
    top: -20px;
    left: -10px;
}

.section-title-wrapper.right .section-number {
    left: auto;
    right: -10px;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.section-subtitle {
    font-size: 0.875rem;
    color: var(--color-accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* About Section */
.about-layout {
    display: flex;
    justify-content: center;
}

.about-text-column {
    flex: 1;
}

.about-text-column.full-width {
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
}

.text-body-wrapper {
    margin-right: 120px;
    /* Space for vertical heading */
}

.vertical-heading {
    writing-mode: vertical-rl;
    font-family: var(--font-serif);
    font-size: 1.75rem;
    line-height: 1.6;
    height: 240px;
    float: right;
    margin-left: 60px;
    margin-bottom: 0;
    border-left: 1px solid var(--color-accent);
    padding-left: 30px;
}

.text-body {
    text-align: justify;
    line-height: 2.4;
    font-size: 1rem;
}

.mt-large {
    margin-top: 40px;
}

.about-image-column {
    flex: 1;
    position: relative;
}

.image-frame {
    position: relative;
    padding: 20px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.about-image {
    width: 100%;
    height: auto;
    display: block;
    filter: sepia(0.1);
}

/* Services Section */
.services-intro-text {
    text-align: center;
    margin-bottom: 80px;
    font-size: 1.1rem;
    line-height: 2;
}

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

.services-grid.simple-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.service-card {
    background-color: var(--color-paper);
    overflow: hidden;
    position: relative;
    transition: transform 0.4s var(--easing), box-shadow 0.4s var(--easing);
    border-bottom: 3px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.05);
    border-bottom-color: var(--color-accent);
}

.service-card.simple {
    background-color: transparent;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 0;
    box-shadow: none;
    transition: border-color 0.3s ease;
    padding: 0;
}

.service-card.simple:hover {
    transform: none;
    box-shadow: none;
    border-bottom-color: var(--color-accent);
}

.service-card.simple .card-content {
    padding: 30px 20px;
    text-align: left;
    display: flex;
    align-items: baseline;
    gap: 40px;
}

.service-card.simple .card-title {
    font-size: 1.25rem;
    margin-bottom: 0;
    min-width: 240px;
    color: var(--color-text);
    font-family: var(--font-serif);
}

.service-card.simple .card-desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.card-image {
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
    background-color: #f0f0f0;
}

.service-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--easing);
}

.service-card:hover .service-img {
    transform: scale(1.05);
}

.card-content {
    padding: 30px;
    text-align: center;
}

.card-title {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--color-sub);
}

.card-desc {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Company Info */
.info-list {
    display: flex;
    flex-direction: column;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.info-row {
    display: flex;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    padding: 24px 0;
}

.info-row dt {
    width: 160px;
    font-weight: 500;
    color: var(--color-text-light);
    font-feature-settings: "palt";
}

.info-row dd {
    flex: 1;
    font-feature-settings: "palt";
}

/* Footer */
.footer {
    background-color: var(--color-sub);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.footer-copy {
    font-size: 0.75rem;
    opacity: 0.6;
    letter-spacing: 0.1em;
}

/* Responsive */
@media (max-width: 768px) {
    .header-inner {
        gap: 40px;
    }

    .header-brand {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }

    .brand-logo {
        width: 140px;
    }

    .brand-name {
        font-size: 1.75rem;
        margin-top: 5px;
        text-align: center;
    }

    .tagline {
        border-right: none;
        border-bottom: 1px solid var(--color-accent);
        padding-right: 0;
        padding-bottom: 30px;
        height: auto;
        width: 100%;
        text-align: center;
        display: flex;
        justify-content: center;
        writing-mode: horizontal-tb;
        /* Horizontal on mobile */
        font-size: 1.25rem;
        line-height: 1.8;
    }

    .tagline span {
        display: inline-block;
        margin: 0 2px;
    }

    .tagline .space {
        display: none;
    }

    .nav-menu ul {
        flex-direction: column;
        gap: 25px;
        text-align: center;
        padding: 0;
    }

    .nav-link {
        font-size: 1.1rem;
    }

    .bg-paper {
        padding: 40px 24px;
    }

    .text-body-wrapper {
        margin-right: 0;
    }

    .vertical-heading {
        writing-mode: horizontal-tb;
        float: none;
        margin: 0 0 30px 0;
        padding-left: 0;
        padding-bottom: 15px;
        border-left: none;
        border-bottom: 1px solid var(--color-accent);
        height: auto;
        width: fit-content;
    }

    .services-grid.simple-list {
        gap: 0;
    }

    .service-card.simple .card-content {
        flex-direction: column;
        gap: 12px;
        padding: 24px 0;
    }

    .service-card.simple .card-title {
        min-width: auto;
    }

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

    .info-row {
        flex-direction: column;
        gap: 8px;
    }

    .info-row dt {
        width: 100%;
        color: var(--color-accent);
        font-size: 0.875rem;
    }
}