:root {
    --white: #FFFFFF;
    --black: #111111;
    --blue: #1A4A6B;
    --line: #D8DEE3;
    --muted: #5B646B;
    --bg-soft: #F6F8F9;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--white);
    color: var(--black);
    font-family: "Noto Sans JP", sans-serif;
    font-size: 16px;
    line-height: 1.85;
    letter-spacing: 0.03em;
}
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 5px; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255,255,255,0.96);
    border-bottom: 1px solid var(--line);
}
.header-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 18px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}
.site-logo {
    display: inline-flex;
    flex-direction: column;
    gap: 2px;
    line-height: 1.1;
}
.site-logo-ja {
    font-family: "Shippori Mincho", serif;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.08em;
}
.site-logo-en {
    font-size: 11px;
    color: var(--blue);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.primary-nav ul, .fallback-menu {
    display: flex;
    align-items: center;
    gap: 28px;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: 14px;
    font-weight: 500;
}
.primary-nav .menu:empty { display: none; }
.menu-toggle { display: none; }
.site-main { min-height: 70vh; }
.hero {
    max-width: 1180px;
    margin: 0 auto;
    padding: 96px 28px 72px;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) 320px;
    gap: 64px;
    align-items: stretch;
}
.hero h1, .section h1, .section h2 {
    font-family: "Shippori Mincho", serif;
    font-weight: 700;
    line-height: 1.45;
    letter-spacing: 0.06em;
    margin: 0 0 24px;
}
.hero h1 { font-size: clamp(38px, 5.2vw, 68px); }
.hero p { max-width: 720px; font-size: 17px; color: #263238; }
.hero-panel {
    min-height: 480px;
    border: 1px solid var(--black);
    background: var(--blue);
    color: var(--white);
    display: flex;
    align-items: flex-end;
    padding: 28px;
    writing-mode: vertical-rl;
    font-family: "Shippori Mincho", serif;
    font-size: 28px;
    letter-spacing: 0.14em;
}
.section {
    max-width: 1180px;
    margin: 0 auto;
    padding: 76px 28px;
    border-top: 1px solid var(--line);
}
.section-kicker {
    margin: 0 0 12px;
    color: var(--blue);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}
.section h1 { font-size: clamp(34px, 4vw, 56px); }
.section h2 { font-size: clamp(28px, 3vw, 42px); }
.split-section {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 56px;
}
.section-body p { margin-top: 0; font-size: 16px; }
.hero-actions, .job-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.button-primary, .button-secondary, .submit-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 12px 26px;
    border-radius: 0;
    border: 1px solid var(--blue);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
}
.button-primary, .submit-button { background: var(--blue); color: var(--white); }
.button-secondary { background: var(--white); color: var(--blue); }
.button-primary:hover, .submit-button:hover { background: var(--black); border-color: var(--black); text-decoration: none; }
.button-secondary:hover { background: var(--bg-soft); text-decoration: none; }
.job-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}
.job-card {
    border: 1px solid var(--line);
    padding: 26px;
    background: var(--white);
}
.job-card h2, .job-card h3 {
    font-family: "Shippori Mincho", serif;
    font-size: 23px;
    line-height: 1.5;
    margin: 6px 0 14px;
}
.job-card p { color: #2E373D; }
.job-type {
    margin: 0;
    color: var(--blue) !important;
    font-size: 13px;
    font-weight: 700;
}
dl { margin: 20px 0 0; }
.job-card dl div, .job-detail-table div {
    display: grid;
    grid-template-columns: 92px 1fr;
    border-top: 1px solid var(--line);
    padding: 12px 0;
    gap: 16px;
}
dt { color: var(--muted); font-size: 13px; font-weight: 700; }
dd { margin: 0; }
.more-link { margin-top: 28px; text-align: right; }
.more-link a, .text-link { color: var(--blue); font-weight: 700; }
.apply-choice-section h2 { max-width: 780px; }
.choice-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    margin-top: 28px;
}
.choice-card {
    border: 1px solid var(--line);
    padding: 30px;
    background: var(--white);
}
.choice-card h3 {
    font-family: "Shippori Mincho", serif;
    font-size: 26px;
    line-height: 1.5;
    margin: 8px 0 12px;
}
.choice-card p { color: #2E373D; }
.choice-card .button-primary,
.choice-card .button-secondary { margin-top: 18px; }
.casual-form {
    border-color: var(--line);
    background: var(--bg-soft);
}
.job-back-link {
    display: inline-flex;
    align-items: center;
    min-height: 48px;
    padding: 12px 0;
}

.entry-section {
    display: grid;
    grid-template-columns: 0.75fr 1.25fr;
    gap: 56px;
    align-items: start;
}
.entry-form {
    border: 1px solid var(--black);
    padding: 34px;
    background: var(--white);
}
.entry-form label {
    display: block;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 22px;
}
.entry-form label span {
    color: var(--blue);
    font-size: 12px;
    margin-left: 8px;
}
.entry-form input, .entry-form select, .entry-form textarea {
    width: 100%;
    margin-top: 8px;
    padding: 13px 14px;
    border: 1px solid var(--line);
    border-radius: 0;
    background: var(--white);
    color: var(--black);
    font: inherit;
    font-size: 16px;
}
.entry-form input:focus, .entry-form select:focus, .entry-form textarea:focus {
    outline: 2px solid rgba(26,74,107,0.25);
    border-color: var(--blue);
}
.privacy-check { display: flex !important; gap: 10px; align-items: flex-start; font-weight: 500 !important; }
.privacy-check input { width: auto; margin-top: 8px; }
.privacy-check span { color: var(--black) !important; font-size: 14px !important; margin: 0 !important; }
.form-message {
    border: 1px solid var(--line);
    padding: 14px 18px;
    margin-bottom: 18px;
}
.form-message.error { border-color: #9A2F2F; }
.form-message.success { border-color: var(--blue); }
.form-message p { margin: 0; }
.single-job { max-width: 920px; }
.job-detail-table {
    border-bottom: 1px solid var(--line);
    margin: 32px 0;
}
.content-area h2, .content-area h3 {
    font-family: "Shippori Mincho", serif;
    line-height: 1.5;
    margin-top: 34px;
}
.content-area p, .content-area li { font-size: 16px; }
.archive-head p { max-width: 720px; }
.site-footer {
    border-top: 1px solid var(--black);
    padding: 34px 28px 24px;
}
.footer-inner {
    max-width: 1180px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 28px;
}
.footer-logo { font-family: "Shippori Mincho", serif; font-size: 21px; font-weight: 700; }
.footer-inner p { margin: 6px 0 0; color: var(--muted); font-size: 13px; }
.footer-nav { display: flex; gap: 22px; flex-wrap: wrap; font-size: 14px; }
.copyright { max-width: 1180px; margin: 28px auto 0; color: var(--muted); font-size: 12px; }
.wakosoken-cookie-btn {
    background-color: #1A4A6B !important;
    color: #FFFFFF !important;
    border: 1px solid #1A4A6B !important;
    border-radius: 0 !important;
    padding: 12px 24px !important;
}
.wakosoken-cookie-btn:hover {
    background-color: #111111 !important;
    color: #FFFFFF !important;
    border-color: #111111 !important;
}
@media (max-width: 860px) {
    .choice-grid { grid-template-columns: 1fr; }
    body { font-size: 15px; }
    .header-inner { padding: 16px 20px; }
    .site-logo-ja { font-size: 19px; }
    .menu-toggle {
        display: inline-flex;
        background: var(--white);
        border: 1px solid var(--black);
        border-radius: 0;
        padding: 8px 12px;
        font: inherit;
    }
    .primary-nav { display: none; position: absolute; left: 0; right: 0; top: 67px; background: var(--white); border-bottom: 1px solid var(--line); padding: 20px; }
    .primary-nav.is-open { display: block; }
    .primary-nav ul, .fallback-menu { display: grid; gap: 16px; }
    .hero { grid-template-columns: 1fr; padding: 68px 20px 48px; gap: 32px; }
    .hero-panel { min-height: 220px; writing-mode: horizontal-tb; font-size: 22px; align-items: flex-end; }
    .section { padding: 56px 20px; }
    .split-section, .entry-section { grid-template-columns: 1fr; gap: 28px; }
    .job-grid { grid-template-columns: 1fr; }
    .entry-form { padding: 24px; }
    .footer-inner { display: block; }
    .footer-nav { margin-top: 20px; }
}

/* v4: compact flat application switcher */
body {
    font-size: 15px;
    line-height: 1.78;
}
.header-inner { padding: 14px 28px; }
.primary-nav ul, .fallback-menu { font-size: 13px; gap: 24px; }
.hero { padding: 76px 28px 58px; grid-template-columns: minmax(0, 1.25fr) 300px; }
.hero h1 { font-size: clamp(34px, 4.6vw, 58px); margin-bottom: 18px; }
.hero p { font-size: 15px; }
.hero-panel { min-height: 390px; font-size: 24px; }
.section.compact-section { padding-top: 58px; padding-bottom: 58px; }
.section h2 { font-size: clamp(24px, 2.6vw, 34px); margin-bottom: 16px; }
.section-kicker { font-size: 12px; margin-bottom: 8px; }
.section-body p, .content-area p, .content-area li { font-size: 14px; }
.button-primary, .button-secondary, .submit-button {
    min-height: 42px;
    padding: 9px 20px;
    font-size: 13px;
    font-weight: 700;
}
.job-grid.compact-grid { gap: 18px; }
.job-card.compact-card, .job-card { padding: 22px; }
.job-card h2, .job-card h3 { font-size: 19px; margin: 5px 0 10px; }
.job-card p { font-size: 14px; }
.job-type { font-size: 12px; }
.job-card dl div, .job-detail-table div { padding: 10px 0; grid-template-columns: 82px 1fr; }
dt { font-size: 12px; }
dd { font-size: 13px; }
.apply-head { max-width: 760px; margin-bottom: 24px; }
.apply-head p { margin-top: 0; font-size: 14px; color: var(--muted); }
.apply-switch {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border: 1px solid var(--black);
    margin-bottom: 0;
}
.apply-tab {
    appearance: none;
    border: 0;
    border-right: 1px solid var(--line);
    border-radius: 0;
    background: var(--white);
    color: var(--black);
    text-align: left;
    padding: 18px 22px;
    cursor: pointer;
    font-family: inherit;
}
.apply-tab:last-child { border-right: 0; }
.apply-tab.is-active {
    background: var(--black);
    color: var(--white);
}
.apply-tab-label {
    display: block;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.4;
}
.apply-tab-text {
    display: block;
    margin-top: 5px;
    font-size: 12px;
    color: inherit;
    opacity: .78;
    line-height: 1.5;
}
.apply-panels {
    border: 1px solid var(--black);
    border-top: 0;
    padding: 26px;
    background: var(--white);
}
.apply-panel { max-width: 760px; }
.entry-form {
    border: 0;
    padding: 0;
    background: transparent;
}
.casual-form { background: transparent; }
.entry-form label {
    font-size: 13px;
    margin-bottom: 16px;
}
.entry-form label span {
    font-size: 11px;
    margin-left: 6px;
}
.entry-form input, .entry-form select, .entry-form textarea {
    margin-top: 6px;
    padding: 10px 11px;
    font-size: 14px;
    line-height: 1.6;
}
.entry-form textarea { min-height: 132px; }
.privacy-check span { font-size: 12px !important; }
.form-message {
    padding: 11px 14px;
    font-size: 13px;
}
.wakosoken-cookie-btn {
    border-radius: 0 !important;
    padding: 10px 20px !important;
}
@media (max-width: 860px) {
    .hero { padding: 56px 20px 42px; }
    .section.compact-section { padding-top: 46px; padding-bottom: 46px; }
    .apply-switch { grid-template-columns: 1fr; }
    .apply-tab { border-right: 0; border-bottom: 1px solid var(--line); padding: 15px 18px; }
    .apply-tab:last-child { border-bottom: 0; }
    .apply-panels { padding: 20px; }
}


/* v5: mobile optimization and hamburger menu */
.menu-toggle-lines {
    display: none;
}

@media (max-width: 960px) {
    html.is-menu-open,
    html.is-menu-open body {
        overflow: hidden;
    }

    body {
        font-size: 14px;
        line-height: 1.74;
        letter-spacing: 0.02em;
    }

    .site-header {
        position: sticky;
        top: 0;
    }

    .header-inner {
        min-height: 58px;
        padding: 10px 16px;
        gap: 12px;
    }

    .site-logo-ja {
        font-size: 17px;
        letter-spacing: 0.06em;
    }

    .site-logo-en {
        font-size: 9px;
        letter-spacing: 0.08em;
    }

    .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        width: auto;
        min-width: 72px;
        min-height: 38px;
        padding: 8px 10px;
        background: var(--white);
        border: 1px solid var(--black);
        border-radius: 0;
        color: var(--black);
        font-family: inherit;
        font-size: 11px;
        font-weight: 700;
        letter-spacing: 0.08em;
        line-height: 1;
        text-transform: uppercase;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }

    .menu-toggle-lines {
        display: grid;
        gap: 4px;
        width: 17px;
    }

    .menu-toggle-lines span {
        display: block;
        height: 1px;
        background: var(--black);
        transition: transform .18s ease, opacity .18s ease;
    }

    .menu-toggle.is-open .menu-toggle-lines span:nth-child(1) {
        transform: translateY(5px) rotate(45deg);
    }

    .menu-toggle.is-open .menu-toggle-lines span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.is-open .menu-toggle-lines span:nth-child(3) {
        transform: translateY(-5px) rotate(-45deg);
    }

    .primary-nav {
        display: block;
        position: fixed;
        left: 0;
        right: 0;
        top: 58px;
        height: calc(100dvh - 58px);
        overflow-y: auto;
        background: var(--white);
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
        padding: 18px 16px 28px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
    }

    .primary-nav.is-open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .primary-nav ul,
    .fallback-menu {
        display: grid;
        gap: 0;
        font-size: 14px;
    }

    .primary-nav li {
        border-bottom: 1px solid var(--line);
    }

    .primary-nav a {
        display: block;
        padding: 15px 2px;
        text-decoration: none;
    }

    .hero {
        display: block;
        padding: 42px 16px 34px;
    }

    .hero h1 {
        font-size: clamp(27px, 8vw, 38px);
        line-height: 1.45;
        margin-bottom: 14px;
    }

    .hero p {
        font-size: 13.5px;
        line-height: 1.85;
    }

    .hero-actions,
    .job-actions {
        display: grid;
        grid-template-columns: 1fr;
        gap: 10px;
        margin-top: 22px;
    }

    .hero-panel {
        min-height: 120px;
        margin-top: 28px;
        padding: 18px;
        writing-mode: horizontal-tb;
        font-size: 17px;
        line-height: 1.6;
    }

    .section,
    .section.compact-section {
        padding: 38px 16px;
    }

    .section h1,
    .section h2 {
        font-size: clamp(22px, 6.2vw, 30px);
        line-height: 1.55;
        margin-bottom: 12px;
    }

    .section-kicker {
        font-size: 10.5px;
        margin-bottom: 6px;
    }

    .split-section,
    .entry-section {
        display: block;
    }

    .section-body p,
    .content-area p,
    .content-area li,
    .job-card p,
    .choice-card p {
        font-size: 13.5px;
        line-height: 1.8;
    }

    .button-primary,
    .button-secondary,
    .submit-button {
        width: 100%;
        min-height: 40px;
        padding: 9px 14px;
        font-size: 12.5px;
    }

    .job-grid,
    .job-grid.compact-grid,
    .choice-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .job-card,
    .job-card.compact-card,
    .choice-card {
        padding: 17px;
    }

    .job-card h2,
    .job-card h3,
    .choice-card h3 {
        font-size: 17px;
        line-height: 1.55;
        margin: 4px 0 8px;
    }

    .job-card dl div,
    .job-detail-table div {
        grid-template-columns: 74px 1fr;
        gap: 10px;
        padding: 9px 0;
    }

    dt {
        font-size: 11px;
    }

    dd {
        font-size: 12.5px;
    }

    .apply-head {
        margin-bottom: 18px;
    }

    .apply-head p {
        font-size: 13px;
        line-height: 1.75;
    }

    .apply-switch {
        grid-template-columns: 1fr 1fr;
    }

    .apply-tab {
        min-height: 74px;
        padding: 12px 12px;
        border-right: 1px solid var(--line);
        border-bottom: 0;
    }

    .apply-tab:last-child {
        border-right: 0;
    }

    .apply-tab-label {
        font-size: 13px;
    }

    .apply-tab-text {
        font-size: 10.5px;
        line-height: 1.45;
    }

    .apply-panels {
        padding: 16px;
    }

    .entry-form label {
        font-size: 12.5px;
        margin-bottom: 14px;
    }

    .entry-form label span {
        display: inline-block;
        font-size: 10px;
    }

    .entry-form input,
    .entry-form select,
    .entry-form textarea {
        min-height: 39px;
        padding: 9px 10px;
        font-size: 13.5px;
    }

    .entry-form textarea {
        min-height: 118px;
    }

    .privacy-check {
        gap: 8px;
    }

    .privacy-check span {
        font-size: 11.5px !important;
        line-height: 1.7;
    }

    .form-message {
        padding: 10px 12px;
        font-size: 12.5px;
    }

    .site-footer {
        padding: 28px 16px 22px;
    }

    .footer-logo {
        font-size: 18px;
    }

    .footer-nav {
        display: grid;
        gap: 8px;
        margin-top: 18px;
        font-size: 12.5px;
    }

    .copyright {
        margin-top: 22px;
        font-size: 10.5px;
    }
}

@media (max-width: 390px) {
    .site-logo-ja {
        font-size: 15px;
    }

    .site-logo-en {
        display: none;
    }

    .menu-toggle {
        min-width: 48px;
    }

    .menu-toggle-text {
        display: none;
    }

    .apply-switch {
        grid-template-columns: 1fr;
    }

    .apply-tab {
        min-height: auto;
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .apply-tab:last-child {
        border-bottom: 0;
    }
}