/* ==========================================================================
   CSS Variables - Forest Green & Line-art Theme
   ========================================================================== */

:root {
    /* Brand greens */
    --color-primary: #1F5538;
    --color-primary-hover: #2D6B47;
    --color-primary-dark: #143E29;
    --color-primary-soft: #DCE6DE;

    /* Surfaces */
    --color-bg: #FFFFFF;
    --color-bg-section: #F5F2EC;
    --color-bg-soft: #FAFAF7;
    --color-white: #FFFFFF;

    /* Text */
    --color-text: #1F2922;
    --color-text-light: #5C6660;
    --color-border: #E8E4D9;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;
    --font-family-display: "Hiragino Maru Gothic ProN", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    --font-weight-display: 800;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Radius */
    --radius: 8px;
    --radius-lg: 18px;
    --radius-xl: 28px;
    --radius-full: 999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(31, 85, 56, 0.06);
    --shadow-md: 0 8px 24px rgba(31, 85, 56, 0.08);
    --shadow-lg: 0 16px 40px rgba(31, 85, 56, 0.10);

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-regular);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
}

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

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

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

a:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
    border-radius: var(--radius);
}

/* ==========================================================================
   Skip Link
   ========================================================================== */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 10000;
    border-radius: 0 0 var(--radius) 0;
}

.skip-link:focus {
    top: 0;
}

/* ==========================================================================
   Header & Nav
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: var(--transition);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.96);
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-mark {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
}

.logo-text-wrap {
    display: flex;
    flex-direction: column;
    gap: 2px;
    line-height: 1.2;
}

.logo-text {
    font-family: var(--font-family-display);
    font-size: 1.0625rem;
    font-weight: var(--font-weight-display);
    color: var(--color-primary);
    letter-spacing: 0.02em;
}

.logo-sub {
    font-size: 0.625rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    letter-spacing: 0.18em;
    opacity: 0.7;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--color-primary);
    position: relative;
    transition: var(--transition);
    border-radius: 2px;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 26px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }

.nav-toggle[aria-expanded="true"] .hamburger { background: transparent; }
.nav-toggle[aria-expanded="true"] .hamburger::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .hamburger::after { bottom: 0; transform: rotate(-45deg); }

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    align-items: center;
}

.nav-menu a {
    font-size: 0.95rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

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

.nav-cta {
    background: var(--color-primary) !important;
    color: white !important;
    padding: 0.75rem 1.5rem !important;
    border-radius: var(--radius-full) !important;
    display: inline-flex !important;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.5rem;
}

.nav-cta::after {
    content: '→';
    font-weight: var(--font-weight-bold);
    transition: transform 0.3s ease;
}

.nav-cta:hover {
    background: var(--color-primary-hover) !important;
    color: white !important;
    transform: translateY(-1px);
}

.nav-cta:hover::after {
    transform: translateX(3px);
}

@media (max-width: 880px) {
    .nav-container {
        padding: 0 var(--spacing-md);
        height: 70px;
    }

    .nav-toggle { display: block; }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transform: translateX(100%);
        transition: transform 0.3s ease;
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    }

    .nav-menu.active { transform: translateX(0); }
    .nav-menu li { width: 100%; text-align: center; }
    .nav-menu a { display: block; padding: var(--spacing-md); }
    .nav-cta { margin-left: 0 !important; justify-content: center; }
}

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-wide {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    letter-spacing: 0.3em;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
}

.section-title {
    font-family: var(--font-family-display);
    font-size: 2.25rem;
    font-weight: var(--font-weight-display);
    color: var(--color-text);
    letter-spacing: 0.04em;
}

.section-description {
    font-size: 1rem;
    color: var(--color-text-light);
    max-width: 640px;
    margin: var(--spacing-md) auto 0;
    line-height: 1.9;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.95rem 1.85rem;
    font-size: 0.95rem;
    font-weight: var(--font-weight-bold);
    text-align: center;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
}

.btn::after {
    content: '→';
    font-weight: var(--font-weight-bold);
    transition: transform 0.3s ease;
}

.btn-no-arrow::after { content: ''; }

.btn:hover::after {
    transform: translateX(4px);
}

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

.btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

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

.btn-large {
    padding: 1.1rem 2.25rem;
    font-size: 1rem;
}

.btn-text {
    background: none;
    color: var(--color-primary);
    padding: var(--spacing-sm) 0;
    border: none;
    border-radius: 0;
}

.btn-text:hover {
    color: var(--color-primary-hover);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    padding-top: 100px;
    padding-bottom: var(--spacing-xl);
    background: var(--color-white);
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: var(--spacing-xl);
    align-items: center;
    min-height: calc(100vh - 100px);
}

.hero-text-side {
    padding: var(--spacing-2xl) 0;
}

.hero-title {
    font-family: var(--font-family-display);
    font-size: 4rem;
    font-weight: var(--font-weight-display);
    line-height: 1.4;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
    letter-spacing: 0.05em;
}

.hero-text {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.95;
    margin-bottom: var(--spacing-xl);
    max-width: 480px;
}

.hero-illust-side {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-illust {
    width: 100%;
    max-width: 720px;
    height: auto;
    will-change: transform;
    transform: translate3d(var(--mx, 0px), var(--my, 0px), 0) rotate(var(--mr, 0deg));
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    animation: heroFloat 6s ease-in-out infinite;
}

.hero:hover .hero-illust {
    animation-play-state: paused;
    transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes heroFloat {
    0%, 100% { transform: translate3d(var(--mx, 0px), calc(var(--my, 0px) + 0px), 0) rotate(var(--mr, 0deg)); }
    50% { transform: translate3d(var(--mx, 0px), calc(var(--my, 0px) - 10px), 0) rotate(var(--mr, 0deg)); }
}

.hero-title {
    will-change: transform;
    transform: translate3d(var(--tx, 0px), var(--ty, 0px), 0);
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero:hover .hero-title {
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.sp-hide { display: inline; }
.sp-only { display: none; }

@media (max-width: 960px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        min-height: auto;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-illust {
        max-width: 480px;
        margin: 0 auto;
    }
}

@media (max-width: 600px) {
    .hero-title {
        font-size: 2rem;
        line-height: 1.5;
    }

    .sp-hide { display: none; }
    .sp-only { display: inline; }
}

/* ==========================================================================
   Services
   ========================================================================== */
.services-section {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 12% 12%, rgba(232, 157, 63, 0.13), transparent 22rem),
        linear-gradient(180deg, var(--color-white) 0%, var(--color-bg-section) 100%);
    padding: var(--spacing-2xl) 0 var(--spacing-3xl);
}

.services-section::before {
    content: '';
    position: absolute;
    inset: 8% auto auto 50%;
    width: min(720px, 62vw);
    height: min(720px, 62vw);
    border-radius: 50%;
    background: rgba(45, 90, 90, 0.06);
    transform: translateX(-50%);
    pointer-events: none;
}

.services-section .container {
    position: relative;
    z-index: 1;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-lg);
    align-items: stretch;
}

.service-card {
    position: relative;
    display: block;
    grid-column: span 4;
    min-height: 300px;
    padding: 1.75rem;
    border: 1px solid rgba(45, 90, 90, 0.1);
    border-radius: 28px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.78)),
        var(--color-white);
    box-shadow: 0 20px 48px rgba(45, 90, 90, 0.08);
    text-align: left;
    text-decoration: none;
    transition: var(--transition);
}

.service-card::after {
    content: '';
    position: absolute;
    right: 1.25rem;
    bottom: 1.25rem;
    width: 84px;
    height: 84px;
    border-radius: 50%;
    background: rgba(232, 157, 63, 0.11);
    transform: scale(0.86);
    transition: var(--transition);
    pointer-events: none;
}

.service-card:hover {
    border-color: rgba(45, 90, 90, 0.22);
    transform: translateY(-8px);
    box-shadow: 0 26px 64px rgba(45, 90, 90, 0.14);
}

.service-card:hover::after {
    transform: scale(1);
}

.service-card--featured {
    grid-column: span 8;
    display: grid;
    grid-template-columns: 136px minmax(0, 1fr);
    column-gap: 1.6rem;
    align-items: center;
    background:
        radial-gradient(circle at 18% 22%, rgba(255, 255, 255, 0.72), transparent 15rem),
        linear-gradient(135deg, rgba(246, 255, 238, 0.95), rgba(255, 247, 224, 0.94));
}

.service-card--featured::after {
    width: 128px;
    height: 128px;
    background: rgba(63, 157, 80, 0.13);
}

.service-icon {
    width: 112px;
    height: 112px;
    margin: 0 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.86);
    box-shadow: inset 0 0 0 1px rgba(45, 90, 90, 0.08);
}

.service-card--featured .service-icon {
    grid-column: 1;
    grid-row: 1 / span 4;
    width: 136px;
    height: 136px;
    margin: 0;
    border-radius: 34px;
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-icon img {
    max-width: 82%;
    max-height: 82%;
    object-fit: contain;
}

.service-label {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    margin-bottom: 1rem;
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    background: rgba(45, 90, 90, 0.09);
    color: var(--color-primary);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.service-card--featured .service-label {
    grid-column: 2;
    width: fit-content;
}

.service-card-title {
    font-family: var(--font-family-display);
    font-size: 1.25rem;
    font-weight: var(--font-weight-display);
    color: var(--color-text);
    margin-bottom: 0.85rem;
    letter-spacing: 0.04em;
}

.service-card--featured .service-card-title {
    grid-column: 2;
    font-size: clamp(1.6rem, 2.6vw, 2.1rem);
}

.service-card-text {
    position: relative;
    z-index: 1;
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.85;
    text-align: left;
}

.service-card--featured .service-card-text {
    grid-column: 2;
    max-width: 34rem;
    font-size: 1rem;
}

.service-card-link {
    grid-column: 2;
    display: inline-flex;
    width: fit-content;
    align-items: center;
    gap: 0.35rem;
    margin-top: 1.25rem;
    color: var(--color-primary);
    font-weight: 700;
}

.service-card-link::after {
    content: '→';
    transition: var(--transition);
}

.service-card--featured:hover .service-card-link::after {
    transform: translateX(4px);
}

@media (max-width: 960px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .service-card,
    .service-card--featured {
        grid-column: auto;
        display: block;
        min-height: 280px;
    }

    .service-card--featured .service-icon,
    .service-icon {
        width: 108px;
        height: 108px;
        margin: 0 0 var(--spacing-lg);
    }
}

@media (max-width: 520px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card,
    .service-card--featured {
        min-height: auto;
        padding: 1.35rem;
        border-radius: 22px;
    }
}

/* ==========================================================================
   Concept
   ========================================================================== */
.concept-section {
    background: var(--color-white);
    padding: var(--spacing-2xl) 0 var(--spacing-3xl);
}

.concept-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    align-items: start;
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
}

.concept-item {
    text-align: center;
    padding: 0 var(--spacing-md);
    position: relative;
}

.concept-item:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 60px;
    right: -30%;
    width: 60%;
    height: 1.5px;
    background: var(--color-primary);
    opacity: 0.5;
    z-index: 0;
}

.concept-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-md);
    background: var(--color-white);
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--spacing-sm);
}

.concept-icon svg {
    width: 100%;
    height: 100%;
}

.concept-text {
    font-family: var(--font-family-display);
    font-size: 0.95rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    line-height: 1.6;
    letter-spacing: 0.04em;
}

@media (max-width: 880px) {
    .concept-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl) 0;
    }

    .concept-item:nth-child(2)::after,
    .concept-item:not(:last-child)::after {
        display: none;
    }
}

@media (max-width: 480px) {
    .concept-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   CTA Section
   ========================================================================== */
.cta-section {
    background: var(--color-bg-section);
    padding: var(--spacing-2xl) 0;
    margin: 0 var(--spacing-lg) var(--spacing-3xl);
    border-radius: var(--radius-xl);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.cta-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    padding: var(--spacing-xl) var(--spacing-2xl);
}

.cta-content {
    text-align: left;
}

.cta-title {
    font-family: var(--font-family-display);
    font-size: 1.85rem;
    font-weight: var(--font-weight-display);
    color: var(--color-text);
    line-height: 1.55;
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.04em;
}

.cta-text {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.9;
    margin-bottom: var(--spacing-lg);
}

.cta-illust {
    display: flex;
    justify-content: center;
    align-items: center;
}

.cta-illust svg {
    width: 100%;
    max-width: 460px;
}

@media (max-width: 880px) {
    .cta-section {
        margin-left: var(--spacing-md);
        margin-right: var(--spacing-md);
    }

    .cta-container {
        grid-template-columns: 1fr;
        padding: var(--spacing-xl) var(--spacing-md);
        text-align: center;
    }

    .cta-content {
        text-align: center;
        order: 2;
    }

    .cta-illust {
        order: 1;
    }

    .cta-title {
        font-size: 1.4rem;
    }
}

/* ==========================================================================
   News Section (slim, for sub-pages)
   ========================================================================== */
.news-section {
    background: var(--color-bg-soft);
    padding: var(--spacing-2xl) 0;
}

.news-list {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.news-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}

.news-item:hover {
    background: rgba(31, 85, 56, 0.03);
}

.news-date {
    font-size: 0.875rem;
    color: var(--color-text-light);
    min-width: 100px;
    font-weight: var(--font-weight-medium);
}

.news-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: transparent;
    color: var(--color-primary);
    font-size: 0.7rem;
    font-weight: var(--font-weight-bold);
    border: 1.5px solid var(--color-primary);
    border-radius: var(--radius-full);
    min-width: 100px;
    text-align: center;
    letter-spacing: 0.05em;
}

.news-title {
    color: var(--color-text);
    flex: 1;
    font-weight: var(--font-weight-medium);
}

.news-title:hover {
    color: var(--color-primary);
}

@media (max-width: 768px) {
    .news-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
}

/* ==========================================================================
   Profile Section (for sub pages, kept minimal)
   ========================================================================== */
.profile-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.profile-content {
    max-width: 500px;
}

.profile-title {
    font-family: var(--font-family-display);
    font-size: 2rem;
    font-weight: var(--font-weight-display);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.profile-text {
    color: var(--color-text-light);
    line-height: 1.85;
    margin-bottom: var(--spacing-lg);
}

.profile-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.profile-image img {
    width: 100%;
    height: auto;
}

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

/* ==========================================================================
   Footer (light)
   ========================================================================== */
.site-footer {
    background: var(--color-white);
    color: var(--color-text);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.footer-top {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.footer-logo a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
    padding-top: var(--spacing-md);
}

.footer-links a {
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
}

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

.footer-bottom {
    text-align: center;
    font-size: 0.75rem;
    color: var(--color-text-light);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-md);
}

/* Legacy footer styles kept slim for sub-pages */
.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
}

.footer-company .footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-description {
    font-size: 0.875rem;
    line-height: 1.85;
    color: var(--color-text-light);
}

.footer-column { min-width: 0; }

.footer-heading {
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

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

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: var(--color-text);
    font-size: 0.875rem;
}

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

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .footer-links {
        gap: var(--spacing-md);
    }
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes gentleFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.scroll-animate,
.scroll-animate-left,
.scroll-animate-right,
.scroll-animate-scale {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scroll-animate-left { transform: translateX(-30px); }
.scroll-animate-right { transform: translateX(30px); }
.scroll-animate-scale { transform: scale(0.96); }

.scroll-animate.animate,
.scroll-animate-left.animate,
.scroll-animate-right.animate,
.scroll-animate-scale.animate {
    opacity: 1;
    transform: translate(0, 0) scale(1);
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .scroll-animate,
    .scroll-animate-left,
    .scroll-animate-right,
    .scroll-animate-scale {
        opacity: 1;
        transform: none;
    }
}

/* ==========================================================================
   Ultra Readable Mode toggle button (always visible)
   ========================================================================== */
.ultra-readable-toggle {
    position: fixed;
    right: 16px;
    bottom: 16px;
    z-index: 9999;
    padding: 0.6rem 1rem;
    font-family: var(--font-family);
    font-size: 0.8rem;
    font-weight: var(--font-weight-bold);
    color: #fff;
    background: var(--color-primary);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    line-height: 1;
}

.ultra-readable-toggle:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    transform: translateY(-2px);
}

.ultra-readable-toggle:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
}

/* ==========================================================================
   Ultra Readable Mode  ── inspired by justinjackson.ca/words_japan.html
   テキストと太字とリンクだけの、ストイックな読書モード
   ========================================================================== */
body.ultra-readable {
    background: #fff !important;
    color: #000 !important;
    font-family: Georgia, 'Times New Roman', 'Yu Mincho', '游明朝', 'Hiragino Mincho ProN', serif !important;
    font-size: 1.375rem;
    line-height: 1.9;
    padding: 4rem 1.25rem 6rem;
}

/* 装飾的・グラフィカルな要素はまるごと隠す */
body.ultra-readable .site-header,
body.ultra-readable .site-footer,
body.ultra-readable .skip-link,
body.ultra-readable img,
body.ultra-readable svg,
body.ultra-readable picture,
body.ultra-readable video,
body.ultra-readable iframe,
body.ultra-readable .hero-illust-side,
body.ultra-readable .cta-illust,
body.ultra-readable .service-icon,
body.ultra-readable .concept-icon,
body.ultra-readable .label,
body.ultra-readable .btn::after,
body.ultra-readable .nav-cta::after,
body.ultra-readable .news-category {
    display: none !important;
}

/* レイアウト要素を素のブロックに戻す */
body.ultra-readable main,
body.ultra-readable section,
body.ultra-readable article,
body.ultra-readable header,
body.ultra-readable footer,
body.ultra-readable nav,
body.ultra-readable div,
body.ultra-readable .container,
body.ultra-readable .container-wide,
body.ultra-readable .hero,
body.ultra-readable .hero-container,
body.ultra-readable .hero-text-side,
body.ultra-readable .services-section,
body.ultra-readable .services-grid,
body.ultra-readable .service-card,
body.ultra-readable .concept-section,
body.ultra-readable .concept-grid,
body.ultra-readable .concept-item,
body.ultra-readable .cta-section,
body.ultra-readable .cta-container,
body.ultra-readable .cta-content,
body.ultra-readable .news-section,
body.ultra-readable .news-list,
body.ultra-readable .news-item {
    all: revert;
    display: block;
    max-width: 640px;
    margin: 0 auto;
    padding: 0;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    grid-template-columns: none !important;
    transform: none !important;
    animation: none !important;
    min-height: 0 !important;
    text-align: left !important;
    color: #000 !important;
}

/* 見出しはセリフ、太字。サイズだけ少し変える */
body.ultra-readable h1,
body.ultra-readable h2,
body.ultra-readable h3,
body.ultra-readable h4,
body.ultra-readable h5,
body.ultra-readable h6 {
    font-family: inherit !important;
    font-weight: bold !important;
    color: #000 !important;
    letter-spacing: 0 !important;
    line-height: 1.5 !important;
    max-width: 640px;
    margin: 2rem auto 1rem !important;
    padding: 0 !important;
    text-align: left !important;
    background: transparent !important;
    transform: none !important;
}

body.ultra-readable h1 { font-size: 2rem; }
body.ultra-readable h2 { font-size: 1.625rem; }
body.ultra-readable h3 { font-size: 1.375rem; }
body.ultra-readable h4,
body.ultra-readable h5,
body.ultra-readable h6 { font-size: 1.25rem; }

/* 段落・テキスト */
body.ultra-readable p,
body.ultra-readable li,
body.ultra-readable dd,
body.ultra-readable dt,
body.ultra-readable td,
body.ultra-readable th,
body.ultra-readable time,
body.ultra-readable span {
    font-family: inherit !important;
    font-size: inherit !important;
    color: #000 !important;
    line-height: inherit !important;
    background: transparent !important;
    letter-spacing: 0 !important;
}

body.ultra-readable p {
    max-width: 640px;
    margin: 0 auto 1.2rem !important;
    text-align: left !important;
}

body.ultra-readable ul,
body.ultra-readable ol {
    max-width: 640px;
    margin: 0 auto 1.2rem !important;
    padding-left: 1.5rem !important;
    list-style: disc;
    text-align: left !important;
}

body.ultra-readable ol { list-style: decimal; }

/* 強調はぜんぶ太字に */
body.ultra-readable b,
body.ultra-readable strong {
    font-weight: bold !important;
    color: #000 !important;
}

/* リンクは下線つき青、というシンプル極まりないスタイル */
body.ultra-readable a {
    color: #0000ee !important;
    text-decoration: underline !important;
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    border-radius: 0 !important;
    font-weight: inherit !important;
    transform: none !important;
}

body.ultra-readable a:visited { color: #551a8b !important; }
body.ultra-readable a:hover { color: #0000ee !important; text-decoration: underline !important; }

/* ボタンもただのリンクっぽく */
body.ultra-readable .btn,
body.ultra-readable button:not(.ultra-readable-toggle) {
    all: revert;
    display: inline !important;
    color: #0000ee !important;
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    font-family: inherit !important;
    font-size: inherit !important;
    text-decoration: underline !important;
    cursor: pointer;
}

/* hr はあったらシンプルな線 */
body.ultra-readable hr {
    max-width: 640px;
    margin: 2rem auto !important;
    border: 0;
    border-top: 1px solid #000;
}

/* 超見やすいモード中のトグルボタンも、テーマに合わせて地味めに */
body.ultra-readable .ultra-readable-toggle {
    background: #000 !important;
    border-color: #000 !important;
    color: #fff !important;
    font-family: inherit !important;
    box-shadow: none !important;
}

/* ==========================================================================
   Helpful Columns
   ========================================================================== */
.home-columns {
    padding: clamp(4rem, 8vw, 6.5rem) 0;
    background: #f7f9fd;
}

.home-columns__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
    max-width: 1120px;
    margin: 2rem auto 0;
}

.home-column-card {
    display: flex;
    min-height: 100%;
    flex-direction: column;
    padding: 1.75rem;
    color: var(--color-text);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.home-column-card:hover {
    color: var(--color-text);
    border-color: #b9d2c2;
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.home-column-card__tag {
    align-self: flex-start;
    margin-bottom: 0.9rem;
    padding: 0.28rem 0.65rem;
    color: var(--color-primary);
    background: var(--color-primary-soft);
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: var(--font-weight-bold);
}

.home-column-card h3 {
    margin-bottom: 0.75rem;
    color: var(--color-primary-dark);
    font-size: 1.1rem;
    line-height: 1.55;
}

.home-column-card p {
    margin-bottom: 1.2rem;
    color: var(--color-text-light);
    font-size: 0.88rem;
    line-height: 1.75;
}

.home-column-card__more {
    margin-top: auto;
    color: var(--color-primary);
    font-size: 0.82rem;
    font-weight: var(--font-weight-bold);
}

.home-columns__all {
    margin-top: 2rem;
    text-align: center;
}

@media (max-width: 768px) {
    .home-columns__grid { grid-template-columns: 1fr; gap: 0.9rem; }
    .home-column-card { padding: 1.35rem; }
}