@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;700&family=Noto+Serif+KR:wght@500&display=swap');

:root {
    --gk-deep-green: #061c1a;
    --gk-green: #092421;
    --gk-green-soft: #0e2d2a;
    --gk-title: #112d2b;
    --gk-coral: #e8463a;
    --gk-coral-soft: #f39a90;
    --gk-ivory: #fbf8f1;
    --gk-sand: #f5f0e6;
    --gk-card: #f4efe6;
    --gk-border: #d5cec1;
    --gk-copy: #526763;
    --gk-copy-light: #bed0cc;
}

html { scroll-behavior: smooth; }

.gk-home,
.gk-site-header,
.gk-site-footer {
    font-family: 'Noto Sans KR', sans-serif;
    word-break: keep-all;
}

.gk-home *,
.gk-site-header *,
.gk-site-footer * { box-sizing: border-box; }

.gk-home {
    overflow: hidden;
    color: var(--gk-title);
    background: #fff;
}

.gk-home a,
.gk-site-header a,
.gk-site-footer a {
    color: inherit;
    text-decoration: none;
}

.gk-home img,
.gk-site-header img,
.gk-site-footer img {
    display: block;
    max-width: 100%;
}

.gk-content,
.gk-header-inner,
.gk-footer-inner {
    width: 1200px;
    max-width: calc(100% - 48px);
    margin-right: auto;
    margin-left: auto;
}

.gk-kicker {
    margin: 0;
    color: var(--gk-coral);
    font-size: 15px;
    font-weight: 700;
    line-height: 18px;
}

.gk-section-heading { margin: 0; }

.gk-section-heading h2 {
    margin: 22px 0 0;
    color: var(--gk-title);
    font-family: 'Noto Serif KR', serif;
    font-size: 50px;
    font-weight: 500;
    line-height: 65px;
    letter-spacing: -.04em;
}

.gk-section-heading > p:last-child:not(.gk-kicker),
.gk-board-heading > div > p:last-child {
    margin: 27px 0 0;
    color: var(--gk-copy);
    font-size: 17px;
    font-weight: 400;
    line-height: 28.05px;
}

.gk-section-heading-dark h2 { color: #fff; }

/* Header · Content 1200 */
.gk-site-header {
    position: fixed;
    z-index: 1000;
    top: 0;
    right: -1px;
    left: -1px;
    height: 96px;
    color: #fff;
    background: rgba(0, 0, 0, .75);
}

.gk-site-header .gk-header-inner {
    width: 1600px;
    max-width: calc(100% - 2px);
}

.gk-header-inner {
    position: relative;
    height: 96px;
}

.gk-brand {
    position: absolute;
    top: 29px;
    left: 0;
    display: flex;
    align-items: center;
    height: 32px;
}

.gk-brand img {
    width: 173px;
    height: 32px;
    transform: translateX(-1.14%);
}

.gk-brand-divider {
    width: 1px;
    height: 24px;
    margin: 0 15px 0 7px;
    background: #fff;
}

.gk-brand-branch {
    width: 70px;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    line-height: 16.8px;
    white-space: nowrap;
}

.gk-desktop-nav {
    position: absolute;
    top: 0;
    right: 348px;
    left: 270px;
    height: 96px;
}

.gk-desktop-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    height: 96px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.gk-nav-item {
    position: relative;
    height: 96px;
    list-style: none;
}

.gk-nav-item + .gk-nav-item:before {
    position: absolute;
    top: 50%;
    left: -9px;
    width: 1px;
    height: 16px;
    background: rgba(255, 255, 255, .28);
    content: '';
    transform: translateY(-50%);
}

.gk-desktop-nav .gk-nav-link {
    position: relative;
    display: flex;
    align-items: center;
    height: 96px;
    color: #fff;
    font-size: 21px;
    font-weight: 500;
    line-height: 25.2px;
    white-space: nowrap;
    transition: color .2s ease, transform .2s ease;
}

.gk-desktop-nav .gk-nav-link:after {
    position: absolute;
    right: 0;
    bottom: 25px;
    left: 0;
    height: 2px;
    border-radius: 1px;
    background: var(--gk-coral-soft);
    content: '';
    transform: scaleX(0);
    transform-origin: center;
    transition: transform .2s ease;
}

.gk-nav-item:hover > .gk-nav-link,
.gk-nav-item:focus-within > .gk-nav-link {
    color: var(--gk-coral-soft);
    transform: translateY(-2px);
}

.gk-nav-item:hover > .gk-nav-link:after,
.gk-nav-item:focus-within > .gk-nav-link:after,
.gk-desktop-nav .gk-nav-link.is-active:after {
    transform: scaleX(1);
}

.gk-desktop-subnav {
    position: absolute;
    top: 76px;
    left: 50%;
    width: 330px;
    visibility: hidden;
    opacity: 0;
    margin: 0;
    padding: 14px;
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: 4px;
    background: rgba(6, 28, 26, .97);
    box-shadow: 0 18px 36px rgba(0, 0, 0, .24);
    list-style: none;
    pointer-events: none;
    transform: translate(-50%, 10px);
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}

.gk-nav-item:hover .gk-desktop-subnav,
.gk-nav-item:focus-within .gk-desktop-subnav {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, 0);
}

.gk-desktop-subnav li { list-style: none; }

.gk-desktop-subnav a {
    display: block;
    padding: 10px 12px;
    border-radius: 3px;
    color: #fff;
    font-size: 19.5px;
    font-weight: 400;
    line-height: 1.45;
    white-space: nowrap;
}

.gk-desktop-subnav a:hover,
.gk-desktop-subnav a:focus,
.gk-desktop-subnav a.is-current {
    color: var(--gk-coral-soft);
    background: rgba(255, 255, 255, .08);
}

.gk-header-actions {
    position: absolute;
    top: 25px;
    right: 0;
    display: flex;
    align-items: center;
    gap: 16px;
    height: 46px;
}

.gk-header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 160px;
    height: 46px;
}

.gk-header-phone img {
    width: 16px;
    height: 16px;
}

.gk-header-phone span {
    display: flex;
    flex-direction: column;
    width: 136px;
}

.gk-header-phone small {
    color: var(--gk-copy-light);
    font-size: 15px;
    font-weight: 400;
    line-height: 19px;
}

.gk-header-phone strong {
    color: #fff;
    font-size: 19.5px;
    font-weight: 700;
    line-height: 25px;
}

.gk-site-header .gk-header-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 162px;
    height: 46px;
    padding: 0 19px 0 20px;
    border-radius: 23px;
    color: var(--gk-deep-green);
    background: #fff;
    font-size: 14px;
    font-weight: 700;
    line-height: 16.8px;
}

.gk-header-cta span {
    color: #f4493f;
    font-size: 16px;
}

.gk-menu-toggle,
.gk-mobile-nav { display: none; }

/* 01 Header + Hero */
.gk-hero {
    position: relative;
    height: 1050px;
    color: #fff;
    background: var(--gk-green) url('../img/main/gk_main_hero.png') center top / cover no-repeat;
}

.gk-hero-shade {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: linear-gradient(90deg, rgba(2, 18, 16, .68) 0%, rgba(2, 18, 16, .30) 48%, rgba(2, 18, 16, .04) 78%);
}

.gk-hero-inner {
    position: relative;
    z-index: 1;
    padding-top: 395px;
}

.gk-hero .gk-kicker {
    margin-bottom: 29px;
    color: #f2b3ad;
}

.gk-hero h1 {
    width: 920px;
    margin: 0;
    color: #fff;
    font-family: 'Noto Serif KR', serif;
    font-size: 72px;
    font-weight: 500;
    line-height: 86.4px;
    letter-spacing: -.055em;
}

.gk-hero-description {
    width: 720px;
    margin: 25px 0 0;
    color: #e5ecea;
    font-size: 22px;
    font-weight: 400;
    line-height: 36.3px;
}

.gk-hero-actions {
    display: flex;
    gap: 20px;
    margin-top: 103px;
}

.gk-button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 58px;
    padding: 0 23px 0 24px;
    border: 1px solid transparent;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    line-height: 19.2px;
}

.gk-button span { font-size: 18px; }

.gk-button-primary {
    width: 178px;
    background: var(--gk-coral);
}

.gk-button-outline {
    width: 194px;
    border-color: rgba(255, 255, 255, .55);
    background: transparent;
}

/* 02 Trust Metrics */
.gk-metrics {
    height: 230px;
    color: #fff;
    background: var(--gk-coral);
}

.gk-metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    height: 230px;
    padding: 50px 0;
}

.gk-metrics-grid > div {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 130px;
    text-align: center;
}

.gk-metrics-grid > div + div:before {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 1px;
    background: rgba(255, 255, 255, .35);
    content: '';
}

.gk-metrics strong {
    color: #fff;
    font-family: 'Noto Serif KR', serif;
    font-size: 34px;
    font-weight: 500;
    line-height: 42.5px;
}

.gk-metrics span {
    margin-top: 20px;
    color: #fff2ef;
    font-size: 15px;
    font-weight: 500;
    line-height: 22.5px;
}

/* 03 Expertise */
.gk-services {
    height: 1040px;
    padding-top: 92px;
    color: #fff;
    background: var(--gk-green-soft);
}

.gk-services .gk-kicker { color: var(--gk-coral-soft); }

.gk-service-list {
    margin-top: 102px;
    border-top: 1px solid rgba(255, 255, 255, .18);
}

.gk-service-row {
    display: grid;
    grid-template-columns: 12.5% 29.1667% 55.6666% 2.6667%;
    align-items: center;
    height: 128px;
    border-bottom: 1px solid rgba(255, 255, 255, .18);
    color: #fff;
}

.gk-service-en {
    color: var(--gk-coral-soft);
    font-size: 12px;
    font-weight: 700;
    line-height: 14.4px;
}

.gk-service-row strong {
    color: #fff;
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 26px;
    font-weight: 700;
    line-height: 33.8px;
}

.gk-service-description {
    width: auto;
    max-width: 610px;
    color: var(--gk-copy-light);
    font-size: 16px;
    font-weight: 400;
    line-height: 25.6px;
}

.gk-service-arrow {
    color: #fff;
    font-size: 22px;
    font-weight: 700;
    line-height: 26.4px;
    text-align: right;
}

/* 04 Knowledge Links */
.gk-knowledge {
    height: 1022px;
    padding-top: 84px;
    background: var(--gk-sand);
}

.gk-knowledge-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
    margin-top: 38px;
}

.gk-knowledge-card {
    position: relative;
    height: 651px;
    overflow: hidden;
    border: 1px solid #d9d2c5;
    background: var(--gk-ivory);
}

.gk-knowledge-card:before {
    position: absolute;
    z-index: 1;
    top: 0;
    right: 0;
    left: 0;
    height: 230px;
    background: rgba(11, 40, 37, .18);
    content: '';
    pointer-events: none;
}

.gk-knowledge-card > img {
    width: 100%;
    height: 230px;
    object-fit: cover;
}

.gk-knowledge-card-body { padding: 29px 33px 30px; }

.gk-card-tag {
    margin: 0 0 18px;
    color: var(--gk-coral);
    font-size: 12px;
    font-weight: 700;
    line-height: 14.4px;
}

.gk-knowledge-card h3 {
    margin: 0;
    color: var(--gk-title);
    font-family: 'Noto Serif KR', serif;
    font-size: 36px;
    font-weight: 500;
    line-height: 46.8px;
    letter-spacing: -.035em;
}

.gk-card-description {
    min-height: 56.1px;
    margin: 7px 0 25px;
    color: var(--gk-copy);
    font-size: 17px;
    font-weight: 400;
    line-height: 28.05px;
}

.gk-card-links {
    display: grid;
    gap: 6px;
}

.gk-card-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 44px;
    padding: 0 16px 0 18px;
    border: 1px solid var(--gk-border);
    color: var(--gk-title);
    background: var(--gk-card);
    font-size: 14px;
    font-weight: 500;
    line-height: 17.5px;
}

.gk-card-links a span {
    color: var(--gk-coral);
    font-size: 15px;
    font-weight: 700;
}

/* 05 Tax Board */
.gk-board {
    height: 687px;
    padding-top: 72px;
    background: var(--gk-ivory);
}

.gk-board > .gk-content { position: relative; }
.gk-board-heading { margin: 0; }

.gk-board-heading h2 {
    margin-top: 22px;
    font-size: 48px;
    line-height: 62.4px;
}

.gk-board-heading > div > p:last-child { margin-top: 12px; }

.gk-text-link {
    position: absolute;
    top: 102px;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 168px;
    color: var(--gk-title);
    font-size: 14px;
    font-weight: 700;
    line-height: 21.6px;
}

.gk-text-link span {
    color: var(--gk-coral);
    font-size: 18px;
}

.gk-board-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
    margin-top: 47px;
}

.gk-board-card {
    position: relative;
    height: 320px;
    overflow: hidden;
    border: 1px solid var(--gk-border);
    color: var(--gk-title);
    background: var(--gk-card);
}

.gk-board-card time {
    position: absolute;
    top: 23px;
    right: 24px;
    color: #81908d;
    font-size: 12px;
    font-weight: 500;
    line-height: 14.4px;
}

.gk-board-card h3 {
    position: absolute;
    top: 80px;
    right: 23px;
    left: 23px;
    margin: 0;
    color: var(--gk-title);
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 22px;
    font-weight: 700;
    line-height: 29.7px;
    letter-spacing: -.025em;
}

.gk-board-card p {
    position: absolute;
    top: 184px;
    right: 23px;
    left: 23px;
    margin: 0;
    color: var(--gk-copy);
    font-size: 15px;
    font-weight: 400;
    line-height: 23.25px;
}

.gk-board-card > span {
    position: absolute;
    right: 24px;
    bottom: 24px;
    color: var(--gk-title);
    font-size: 18px;
    font-weight: 700;
}

.gk-board-card--empty { cursor: default; }

/* 07 Consultation Process */
.gk-process {
    height: 823px;
    padding-top: 74px;
    color: var(--gk-title);
    background: var(--gk-sand);
}

.gk-process .gk-section-heading h2 {
    color: var(--gk-title);
    font-size: 48px;
    line-height: 62.4px;
}

.gk-process .gk-section-heading > p:last-child {
    margin-top: 28px;
    color: var(--gk-copy);
}

.gk-process-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 20px;
    margin: 111px 0 0;
    padding: 0;
    list-style: none;
}

.gk-process-grid li {
    position: relative;
    height: 322px;
    overflow: hidden;
    border: 1px solid #d4cec2;
    color: var(--gk-title);
    background: var(--gk-ivory);
}

.gk-process-number {
    position: absolute;
    top: 23px;
    left: 23px;
    color: var(--gk-coral);
    font-size: 13px;
    font-weight: 700;
    line-height: 15.6px;
}

.gk-process-line {
    position: absolute;
    top: 59px;
    left: 23px;
    display: block;
    width: 40px;
    height: 3px;
    background: var(--gk-title);
}

.gk-process-grid li strong {
    position: absolute;
    top: 100px;
    right: 23px;
    left: 23px;
    color: var(--gk-title);
    font-size: 23px;
    font-weight: 700;
    line-height: 31.05px;
}

.gk-process-grid li p {
    position: absolute;
    top: 177px;
    right: 23px;
    left: 23px;
    margin: 0;
    color: var(--gk-copy);
    font-size: 15px;
    font-weight: 400;
    line-height: 24.75px;
}

/* 08 Contact */
.gk-contact {
    height: 712px;
    padding-top: 72px;
    color: #fff;
    background: var(--gk-green);
}

.gk-contact-grid {
    display: grid;
    grid-template-columns: 38.3333% 53.3333%;
    gap: 8.3334%;
    align-items: start;
}

.gk-contact .gk-kicker { color: var(--gk-coral-soft); }

.gk-contact h2 {
    margin: 22px 0 0;
    color: #fff;
    font-family: 'Noto Serif KR', serif;
    font-size: 46px;
    font-weight: 500;
    line-height: 62.1px;
    letter-spacing: -.04em;
}

.gk-contact-intro {
    margin: 30px 0 0;
    color: var(--gk-copy-light);
    font-size: 17px;
    font-weight: 400;
    line-height: 28.9px;
}

.gk-contact-details { margin: 38px 0 0; }

.gk-contact-details > div {
    display: block;
    margin-top: 19px;
    padding: 0;
    border: 0;
}

.gk-contact-details dt,
.gk-contact-details dd { margin: 0; }

.gk-contact-details dt {
    color: var(--gk-coral-soft);
    font-size: 13px;
    font-weight: 700;
    line-height: 15.6px;
}

.gk-contact-details dd {
    margin-top: 13px;
    color: #fff;
    font-size: 16px;
    font-weight: 400;
    line-height: 26.4px;
}

.gk-contact-details dd a { color: inherit; }

.gk-contact-details .gk-contact-phone-row {
    margin-top: 0;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, .25);
}

.gk-contact-phone-row dd { margin-top: 14px; }

.gk-contact-phone-row dd a {
    color: #fff;
    font-family: 'Noto Serif KR', serif;
    font-size: 42px;
    font-weight: 500;
    line-height: 50.4px;
}

.gk-contact-details > div:last-child dd {
    color: var(--gk-copy-light);
    font-size: 15px;
    font-weight: 500;
    line-height: 22.5px;
}

.gk-contact-map {
    display: block;
    width: 100%;
    margin-top: 54px;
    overflow: hidden;
    background: #e9e3d7;
}

.gk-contact-map .root_daum_roughmap,
.gk-contact-map .root_daum_roughmap .wrap_map {
    width: 100% !important;
}

.section_address { display: none !important; }

@media (min-width: 768px) {
    .gk-contact-map { align-self: stretch; }

    .gk-contact-map .root_daum_roughmap {
        height: 100% !important;
    }

    .gk-contact-map .root_daum_roughmap .wrap_map {
        height: calc(100% - 31px) !important;
    }

    .gk-contact-map .root_daum_roughmap .wrap_map .map {
        height: 100% !important;
    }
}

/* 09 Related Sites */
.gk-related {
    padding: 34px 0;
    border-top: 1px solid #ddd8ce;
    border-bottom: 1px solid #ddd8ce;
    background: var(--gk-ivory);
}

.gk-related-inner {
    display: grid;
    grid-template-columns: 144px minmax(0, 1fr);
    gap: 28px;
    align-items: center;
}

.gk-related-heading .gk-kicker { color: var(--gk-coral); }

.gk-related-heading h2 {
    margin: 9px 0 0;
    color: var(--gk-title);
    font-family: 'Noto Serif KR', serif;
    font-size: 26px;
    font-weight: 600;
    line-height: 1.35;
    letter-spacing: -.04em;
}

.gk-related-list {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 8px;
}

.gk-related-list a {
    display: flex;
    min-width: 0;
    height: 82px;
    align-items: center;
    justify-content: center;
    padding: 14px;
    border: 1px solid #ddd8ce;
    color: var(--gk-title);
    background: #fff;
    transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.gk-related-list a:hover,
.gk-related-list a:focus-visible {
    border-color: var(--gk-coral);
    box-shadow: 0 8px 20px rgba(6, 28, 26, .08);
    outline: 0;
    transform: translateY(-2px);
}

.gk-related-list img {
    display: block;
    width: auto;
    max-width: 150px;
    height: auto;
    max-height: 48px;
}

.gk-related-list img.is-sejungilbo { filter: brightness(.28); }

/* Footer */
.gk-site-footer {
    height: 220px;
    color: #fff;
    background: var(--gk-deep-green);
}

.gk-footer-inner {
    position: relative;
    height: 220px;
}

.gk-footer-brand {
    position: absolute;
    top: 50px;
    left: 0;
}

.gk-footer-brand > a {
    display: flex;
    align-items: center;
    height: 32px;
}

.gk-footer-brand img {
    width: 173px;
    height: 32px;
}

.gk-footer-brand > a span {
    margin-left: 7px;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    line-height: 16.8px;
}

.gk-footer-brand p {
    margin: 0;
    color: #8fa5a1;
    font-size: 13px;
    font-weight: 400;
    line-height: 21.45px;
}

.gk-footer-brand p:first-of-type { margin-top: 30px; }

.gk-footer-brand p a { color: inherit; }

.gk-footer-account {
    position: absolute;
    top: 54px;
    right: 0;
    display: flex;
    align-items: center;
    gap: 12px;
    color: #8fa5a1;
    font-size: 13px;
    line-height: 20px;
}

.gk-footer-account a { color: inherit; }

@media (hover: hover) and (pointer: fine) {
    .gk-footer-account a { transition: color .2s ease; }
    .gk-footer-account a:hover { color: #fff; }
}

.gk-footer-copy {
    position: absolute;
    top: 178px;
    left: 0;
    margin: 0;
    color: #8fa5a1;
    font-size: 12px;
    font-weight: 500;
    line-height: 14.4px;
}

@media (min-width: 1200px) and (max-width: 1399.98px) {
    .gk-desktop-nav {
        right: 180px;
        left: 270px;
    }

    .gk-header-phone { display: none; }
}

/* Tablet: 768px - 1199px */
@media (min-width: 768px) and (max-width: 1199.98px) {
    .gk-content,
    .gk-header-inner,
    .gk-footer-inner {
        width: auto;
        max-width: none;
        margin-right: 32px;
        margin-left: 32px;
    }

    .gk-site-header,
    .gk-header-inner { height: 84px; }

    .gk-site-header .gk-header-inner {
        width: auto;
        max-width: none;
        margin-right: 32px;
        margin-left: 32px;
    }
    .gk-brand { top: 26px; }
    .gk-desktop-nav,
    .gk-header-actions { display: none; }

    .gk-menu-toggle {
        position: absolute;
        top: 20px;
        right: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 6px;
        width: 44px;
        height: 44px;
        padding: 0 8px;
        border: 0;
        background: transparent;
        cursor: pointer;
    }

    .gk-menu-toggle span {
        display: block;
        width: 100%;
        height: 1px;
        background: #fff;
    }

    .gk-mobile-nav {
        position: absolute;
        top: 84px;
        right: 0;
        left: 0;
        padding: 24px 32px;
        border-top: 1px solid rgba(255, 255, 255, .12);
        background: var(--gk-deep-green);
    }

    .gk-mobile-nav[hidden] { display: none; }

    .gk-mobile-nav-list {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 4px 18px;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .gk-mobile-nav-item,
    .gk-mobile-nav-item li { list-style: none; }

    .gk-mobile-nav-row { display: flex; align-items: stretch; }

    .gk-mobile-nav-row > a {
        flex: 1 1 auto;
        min-width: 0;
        padding: 12px;
        color: #fff;
        font-size: 21px;
        text-align: center;
    }

    .gk-mobile-submenu-toggle {
        flex: 0 0 36px;
        width: 36px;
        border: 0;
        padding: 0;
        color: #fff;
        background: transparent;
        cursor: pointer;
    }

    .gk-mobile-submenu-toggle span {
        display: inline-block;
        transition: transform .18s ease;
    }

    .gk-mobile-submenu-toggle[aria-expanded="true"] span { transform: rotate(180deg); }

    .gk-mobile-subnav {
        margin: 0;
        padding: 5px 7px 10px;
        list-style: none;
        background: rgba(255, 255, 255, .05);
    }

    .gk-mobile-subnav[hidden] { display: none; }

    .gk-mobile-subnav a {
        display: block;
        padding: 8px 6px;
        color: var(--gk-copy-light);
        font-size: 18px;
        line-height: 1.45;
        text-align: center;
    }

    .gk-mobile-subnav a.is-current { color: var(--gk-coral-soft); }

    .gk-mobile-nav .gk-mobile-phone {
        display: block;
        margin-top: 14px;
        padding: 12px;
        color: var(--gk-coral-soft);
        text-align: center;
    }

    .gk-hero {
        height: 820px;
        background-position: 58% top;
    }

    .gk-hero-inner { padding-top: 290px; }

    .gk-hero h1 {
        width: auto;
        font-size: 62px;
        line-height: 1.3;
    }

    .gk-hero-description {
        width: auto;
        font-size: 18px;
    }

    .gk-hero-actions { margin-top: 72px; }

    .gk-metrics,
    .gk-metrics-grid { height: 300px; }

    .gk-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 0;
    }

    .gk-metrics-grid > div { height: 150px; }
    .gk-metrics-grid > div:nth-child(3):before { display: none; }

    .gk-metrics-grid > div:nth-child(n+3) {
        border-top: 1px solid rgba(255, 255, 255, .35);
    }

    .gk-services,
    .gk-knowledge,
    .gk-board,
    .gk-process,
    .gk-contact,
    .gk-site-footer { height: auto; }

    .gk-services { padding-bottom: 92px; }

    .gk-service-row {
        grid-template-columns: 115px 235px 1fr 28px;
        min-height: 128px;
        height: auto;
    }

    .gk-service-description {
        width: auto;
        padding-left: 24px;
        padding-right: 20px;
        font-size: 14px;
    }

    .gk-knowledge { padding-bottom: 88px; }

    .gk-knowledge-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 24px;
    }

    .gk-knowledge-card {
        height: auto;
        min-height: 651px;
    }

    .gk-knowledge-card > img {
        width: 100%;
        height: 230px;
    }

    .gk-knowledge-card-body {
        padding-right: 26px;
        padding-left: 26px;
    }

    .gk-card-description {
        min-height: 84px;
        font-size: 15px;
    }

    .gk-board { padding-bottom: 72px; }

    .gk-board-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .gk-process { padding-bottom: 74px; }

    .gk-process-grid { grid-template-columns: repeat(3, 1fr); }
    .gk-process-grid li { width: auto; }

    .gk-contact { padding-bottom: 72px; }

    .gk-contact-grid {
        grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
        gap: 48px;
    }

    .gk-contact-map { width: 100%; }

    .gk-related { padding: 46px 0; }

    .gk-related-inner {
        display: block;
    }

    .gk-related-heading { margin-bottom: 24px; }

    .gk-related-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }

    .gk-site-footer { min-height: 220px; }
}

/* Mobile: 0 - 767px */
@media (max-width: 767.98px) {
    .gk-content,
    .gk-header-inner,
    .gk-footer-inner {
        width: auto;
        max-width: none;
        margin-right: 20px;
        margin-left: 20px;
    }

    .gk-kicker {
        font-size: 11px;
        line-height: 15px;
    }

    .gk-section-heading h2 {
        margin-top: 14px;
        font-size: 38px;
        line-height: 1.35;
    }

    .gk-section-heading > p:last-child:not(.gk-kicker),
    .gk-board-heading > div > p:last-child {
        margin-top: 16px;
        font-size: 14px;
        line-height: 1.75;
    }

    .gk-site-header,
    .gk-header-inner { height: 72px; }

    .gk-site-header .gk-header-inner {
        width: auto;
        max-width: none;
        margin-right: 20px;
        margin-left: 20px;
    }

    .gk-brand {
        top: 22px;
        height: 28px;
    }

    .gk-brand img {
        width: 142px;
        height: auto;
    }

    .gk-brand-divider {
        height: 18px;
        margin-right: 9px;
        margin-left: 7px;
    }

    .gk-brand-branch {
        width: auto;
        font-size: 11px;
    }

    .gk-desktop-nav,
    .gk-header-actions { display: none; }

    .gk-menu-toggle {
        position: absolute;
        top: 17px;
        right: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        width: 38px;
        height: 38px;
        padding: 0 7px;
        border: 0;
        background: transparent;
        cursor: pointer;
    }

    .gk-menu-toggle span {
        display: block;
        width: 100%;
        height: 1px;
        background: #fff;
    }

    .gk-site-header.is-menu-open { background: var(--gk-deep-green); }

    .gk-mobile-nav {
        position: absolute;
        top: 72px;
        right: 0;
        left: 0;
        display: block;
        padding: 12px 20px 22px;
        border-top: 1px solid rgba(255, 255, 255, .12);
        background: var(--gk-deep-green);
    }

    .gk-mobile-nav[hidden] { display: none; }

    .gk-mobile-nav-list {
        display: block;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .gk-mobile-nav-item,
    .gk-mobile-nav-item li { list-style: none; }

    .gk-mobile-nav-row {
        display: flex;
        align-items: stretch;
        border-bottom: 1px solid rgba(255, 255, 255, .1);
    }

    .gk-mobile-nav-row > a {
        flex: 1 1 auto;
        min-width: 0;
        padding: 13px 4px;
        color: #fff;
        font-size: 21px;
    }

    .gk-mobile-submenu-toggle {
        flex: 0 0 44px;
        width: 44px;
        border: 0;
        padding: 0;
        color: #fff;
        background: transparent;
        cursor: pointer;
    }

    .gk-mobile-submenu-toggle span {
        display: inline-block;
        transition: transform .18s ease;
    }

    .gk-mobile-submenu-toggle[aria-expanded="true"] span { transform: rotate(180deg); }

    .gk-mobile-subnav {
        margin: 0;
        padding: 6px 0;
        list-style: none;
        background: rgba(255, 255, 255, .05);
    }

    .gk-mobile-subnav[hidden] { display: none; }

    .gk-mobile-subnav a {
        display: block;
        padding: 10px 14px;
        color: var(--gk-copy-light);
        font-size: 19.5px;
        line-height: 1.45;
    }

    .gk-mobile-subnav a.is-current { color: var(--gk-coral-soft); }

    .gk-mobile-nav .gk-mobile-phone {
        display: block;
        margin-top: 8px;
        padding: 13px 4px;
        border-bottom: 0;
        color: var(--gk-coral-soft);
    }

    .gk-hero {
        height: 680px;
        background-position: 60% top;
    }

    .gk-hero-shade {
        background: linear-gradient(90deg, rgba(2, 18, 16, .78) 0%, rgba(2, 18, 16, .28) 80%);
    }

    .gk-hero-inner { padding-top: 240px; }
    .gk-hero .gk-kicker { margin-bottom: 19px; }

    .gk-hero h1 {
        width: auto;
        font-size: 43px;
        line-height: 1.32;
    }

    .gk-hero-description {
        width: auto;
        margin-top: 23px;
        font-size: 14px;
        line-height: 1.8;
    }

    .gk-hero-actions {
        gap: 8px;
        margin-top: 39px;
    }

    .gk-button {
        width: calc(50% - 4px);
        height: 52px;
        padding: 0 14px;
        font-size: 12px;
    }

    .gk-metrics,
    .gk-metrics-grid { height: 270px; }

    .gk-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 0;
    }

    .gk-metrics-grid > div {
        height: 135px;
        padding: 10px;
    }

    .gk-metrics-grid > div:nth-child(3):before { display: none; }

    .gk-metrics-grid > div:nth-child(n+3) {
        border-top: 1px solid rgba(255, 255, 255, .35);
    }

    .gk-metrics strong {
        font-size: 25px;
        line-height: 1.3;
    }

    .gk-metrics span {
        margin-top: 10px;
        font-size: 11px;
        line-height: 1.5;
    }

    .gk-services,
    .gk-knowledge,
    .gk-board,
    .gk-process,
    .gk-contact,
    .gk-site-footer { height: auto; }

    .gk-services,
    .gk-knowledge,
    .gk-board,
    .gk-process,
    .gk-contact {
        padding-top: 70px;
        padding-bottom: 74px;
    }

    .gk-service-list { margin-top: 42px; }

    .gk-service-row {
        grid-template-columns: 1fr 32px;
        height: auto;
        min-height: 0;
        padding: 27px 0;
    }

    .gk-service-en {
        grid-column: 1;
        margin-bottom: 8px;
        font-size: 10px;
    }

    .gk-service-row strong {
        grid-column: 1;
        font-size: 22px;
        line-height: 1.5;
    }

    .gk-service-description {
        grid-column: 1;
        width: auto;
        margin-top: 10px;
        padding-right: 8px;
        font-size: 13px;
        line-height: 1.75;
    }

    .gk-service-arrow {
        grid-row: 1 / 4;
        grid-column: 2;
        align-self: center;
    }

    .gk-knowledge-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 36px;
    }

    .gk-knowledge-card { height: auto; }

    .gk-knowledge-card:before {
        height: auto;
        padding-top: 39.65%;
    }

    .gk-knowledge-card > img {
        width: 100%;
        height: auto;
    }

    .gk-knowledge-card-body { padding: 26px 18px 24px; }

    .gk-knowledge-card h3 {
        font-size: 29px;
        line-height: 1.4;
    }

    .gk-card-description {
        min-height: 0;
        margin: 9px 0 22px;
        font-size: 13px;
        line-height: 1.8;
    }

    .gk-card-links a { font-size: 12px; }

    .gk-board-heading h2,
    .gk-process .gk-section-heading h2 {
        font-size: 38px;
        line-height: 1.35;
    }

    .gk-text-link {
        position: static;
        width: 150px;
        margin-top: 26px;
        font-size: 13px;
    }

    .gk-board-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-top: 37px;
    }

    .gk-board-card { height: 280px; }

    .gk-board-card h3 {
        top: 70px;
        font-size: 20px;
    }

    .gk-board-card p {
        top: 158px;
        font-size: 13px;
    }

    .gk-process .gk-section-heading > p:last-child { margin-top: 16px; }

    .gk-process-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-top: 45px;
    }

    .gk-process-grid li { height: 255px; }
    .gk-process-grid li strong { top: 91px; }
    .gk-process-grid li p { top: 148px; }

    .gk-contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .gk-contact h2 {
        margin-top: 14px;
        font-size: 38px;
        line-height: 1.35;
    }

    .gk-contact-intro {
        margin-top: 16px;
        font-size: 14px;
        line-height: 1.75;
    }

    .gk-contact-details { margin-top: 32px; }
    .gk-contact-phone-row dd a { font-size: 34px; }

    .gk-contact-details dd {
        font-size: 13px;
        line-height: 1.75;
    }

    .gk-contact-map {
        width: 100%;
        height: auto;
        margin-top: 0;
    }

    .gk-related { padding: 42px 0; }

    .gk-related-heading h2 { font-size: 24px; }

    .gk-related-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
    }

    .gk-related-list a {
        height: 74px;
        padding: 12px;
    }

    .gk-related-list a:last-child { grid-column: 1 / -1; }

    .gk-related-list img {
        max-width: 132px;
        max-height: 42px;
    }

    .gk-site-footer { min-height: 238px; }
    .gk-footer-inner { height: 238px; }
    .gk-footer-brand { top: 42px; }

    .gk-footer-brand img {
        width: 150px;
        height: auto;
    }

    .gk-footer-brand > a span { font-size: 11px; }

    .gk-footer-brand p {
        font-size: 10px;
        line-height: 1.8;
    }

    .gk-footer-brand p:first-of-type { margin-top: 24px; }

    .gk-footer-copy {
        top: 190px;
        font-size: 10px;
    }

    .gk-footer-account {
        top: 48px;
        gap: 9px;
        font-size: 11px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
}