.gk-auth {
    --gka-navy: #132844;
    --gka-gold: #d5a64b;
    --gka-line: #dce4ed;
    --gka-muted: #5d6e83;
    box-sizing: border-box;
    display: grid;
    grid-template-columns: minmax(260px, .78fr) minmax(0, 1.22fr);
    width: 100%;
    max-width: 1080px;
    margin: 24px auto 36px;
    overflow: hidden;
    border: 1px solid var(--gka-line);
    border-radius: 22px;
    background: #fff;
    color: var(--gka-navy);
    text-align: left;
    font-family: "Noto Sans KR", "Malgun Gothic", system-ui, sans-serif;
    box-shadow: 0 18px 50px rgba(19, 40, 68, .09);
}
.gk-auth *, .gk-auth *::before, .gk-auth *::after { box-sizing: border-box; }
.gk-auth [hidden] { display: none !important; }
.gk-auth .gk-auth-intro {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding: 40px 32px;
    border-top: 4px solid var(--gka-gold);
    background: linear-gradient(155deg, #132844 25%, #213b58);
    color: #fff;
}
.gk-auth .gk-auth-brand { display: inline-flex; align-items: center; gap: 9px; margin-bottom: 44px; color: #f4d99e; font-size: 16px; font-weight: 800; }
.gk-auth .gk-auth-brand svg { width: 23px; height: 23px; }
.gk-auth .gk-auth-eyebrow { display: block; margin-bottom: 8px; color: #765817; font-size: 12px; font-weight: 800; line-height: 1.6; letter-spacing: .04em; }
.gk-auth .gk-auth-intro .gk-auth-eyebrow { color: #f4d99e; }
.gk-auth .gk-auth-intro h2 { margin: 0 0 16px; color: #fff; font-size: clamp(26px, 3vw, 35px); font-weight: 700; line-height: 1.55; word-break: keep-all; overflow-wrap: anywhere; }
.gk-auth .gk-auth-intro > p { margin: 0; color: #dbe4ef; font-size: 14px; line-height: 1.85; word-break: keep-all; }
.gk-auth .gk-auth-intro-list { display: grid; gap: 17px; margin: 35px 0; padding: 25px 0; border-top: 1px solid rgba(244, 217, 158, .25); border-bottom: 1px solid rgba(244, 217, 158, .25); list-style: none; }
.gk-auth .gk-auth-intro-list li { display: flex; align-items: center; gap: 11px; margin: 0; color: #f1f5fa; font-size: 13px; line-height: 1.65; list-style: none; }
.gk-auth .gk-auth-intro-list svg { flex: 0 0 19px; width: 19px; height: 19px; color: #f4d99e; }
.gk-auth .gk-auth-intro .gk-auth-intro-foot { margin-top: auto; padding-top: 24px; color: #cbd7e5; font-size: 12px; }
.gk-auth .gk-auth-panel { min-width: 0; padding: 40px 42px; }
.gk-auth .gk-auth-heading { margin-bottom: 25px; }
.gk-auth .gk-auth-heading h2 { margin: 0 0 8px; color: var(--gka-navy); font-size: 27px; font-weight: 700; line-height: 1.5; }
.gk-auth .gk-auth-heading p { margin: 0; color: var(--gka-muted); font-size: 14px; line-height: 1.75; }
.gk-auth .gk-auth-form { display: block; margin: 0; padding: 0; }
.gk-auth .gk-auth-field { margin: 0 0 19px; }
.gk-auth .gk-auth-field > label { display: block; margin-bottom: 7px; color: var(--gka-navy); font-size: 14px; font-weight: 700; line-height: 1.6; }
.gk-auth .gk-auth-input-wrap { position: relative; }
.gk-auth .gk-auth-field input:not([type="checkbox"]) {
    display: block;
    width: 100%;
    min-height: 49px;
    margin: 0;
    padding: 11px 13px;
    border: 1px solid #bdcad9;
    border-radius: 9px;
    background: #fff !important;
    color: var(--gka-navy) !important;
    font: inherit;
    font-size: 15px;
    line-height: 1.6;
    box-shadow: none;
    transition: border-color .15s, box-shadow .15s;
}
.gk-auth .gk-auth-field .gk-auth-input-password input { padding-right: 84px; }
.gk-auth .gk-auth-field input:not([type="checkbox"]):hover { border-color: #7e92ad; }
.gk-auth .gk-auth-field input:not([type="checkbox"]):focus { border-color: #26466b; outline: 3px solid rgba(213, 166, 75, .35); outline-offset: 2px; }
.gk-auth .gk-auth-field input[aria-invalid="true"] { border-color: #ae4940; }
.gk-auth .gk-auth-field input[readonly] { background: #f4f7fa !important; }
.gk-auth .gk-auth-hint, .gk-auth .gk-auth-privacy-note { margin: 7px 0 0; color: var(--gka-muted); font-size: 12px; line-height: 1.8; overflow-wrap: anywhere; }
.gk-auth .gk-auth-privacy-note { margin-bottom: 18px; }
.gk-auth .gk-auth-field-error { margin: 7px 0 0; color: #993f36; font-size: 13px; font-weight: 600; line-height: 1.75; overflow-wrap: anywhere; }
.gk-auth .gk-auth-field-status { min-height: 0; margin: 5px 0 0; color: var(--gka-muted); font-size: 12px; line-height: 1.75; overflow-wrap: anywhere; }
.gk-auth .gk-auth-field-status:empty { display: none; }
.gk-auth .gk-auth-field-status.is-available { color: #216448; }
.gk-auth .gk-auth-field-status.is-error { color: #993f36; }
.gk-auth .gk-auth-caps { margin: 7px 0 0; color: #7a5616; font-size: 12px; font-weight: 600; line-height: 1.7; }
.gk-auth button, .gk-auth .gk-auth-submit { margin: 0; font: inherit; letter-spacing: 0; text-transform: none; background-image: none !important; box-shadow: none !important; touch-action: manipulation; }
.gk-auth button::before, .gk-auth button::after, .gk-auth .gk-auth-submit::before, .gk-auth .gk-auth-submit::after { display: none !important; }
.gk-auth button:focus-visible, .gk-auth a:focus-visible, .gk-auth input[type="checkbox"]:focus-visible { outline: 3px solid var(--gka-gold); outline-offset: 3px; }
.gk-auth .gk-auth-password-toggle {
    position: absolute;
    top: 50%;
    right: 5px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    min-width: 67px;
    min-height: 38px;
    padding: 6px;
    transform: translateY(-50%);
    border: 0;
    border-radius: 6px;
    background: transparent !important;
    color: #354e6b !important;
    font-size: 12px;
    font-weight: 700;
    line-height: 1.5;
    cursor: pointer;
}
.gk-auth .gk-auth-password-toggle svg { width: 17px; height: 17px; }
.gk-auth .gk-auth-password-toggle:hover, .gk-auth .gk-auth-password-toggle:focus-visible { background: #edf2f8 !important; color: var(--gka-navy) !important; }
.gk-auth .gk-auth-password-toggle[aria-pressed="true"] { background: #f8f0df !important; color: #6b4e14 !important; }
.gk-auth .gk-auth-password-toggle[aria-pressed="true"]:hover, .gk-auth .gk-auth-password-toggle[aria-pressed="true"]:focus-visible { background: #f0e2c5 !important; color: #584315 !important; }
.gk-auth .gk-auth-password-strength { display: grid; grid-template-columns: 68px minmax(0, 1fr); align-items: center; gap: 9px; margin-top: 8px; color: var(--gka-muted); font-size: 11px; line-height: 1.7; }
.gk-auth .gk-auth-password-strength meter { width: 68px; height: 8px; appearance: none; border: 0; border-radius: 8px; background: #e5ecf4; overflow: hidden; }
.gk-auth .gk-auth-password-strength meter::-webkit-meter-bar { border: 0; border-radius: 8px; background: #e5ecf4; }
.gk-auth .gk-auth-password-strength meter::-webkit-meter-optimum-value { background: #36644f; }
.gk-auth .gk-auth-password-strength meter::-webkit-meter-suboptimum-value { background: #b08a3f; }
.gk-auth .gk-auth-password-strength meter::-webkit-meter-even-less-good-value { background: #b46254; }
.gk-auth .gk-auth-password-strength meter::-moz-meter-bar { background: #36644f; }
.gk-auth .gk-auth-check { display: flex; align-items: flex-start; gap: 9px; margin: 0 0 20px; color: #425872; font-size: 13px; font-weight: 400; line-height: 1.8; }
.gk-auth .gk-auth-check input { flex: 0 0 17px; width: 17px; height: 17px; margin: 4px 0 0; padding: 0; accent-color: var(--gka-navy); }
.gk-auth .gk-auth-check a { color: #344f74 !important; text-decoration: underline; text-underline-offset: 3px; }
.gk-auth .gk-auth-check a:hover, .gk-auth .gk-auth-check a:focus-visible { color: #755317 !important; }
.gk-auth .gk-auth-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    min-height: 50px;
    padding: 12px 20px;
    border: 1px solid var(--gka-navy);
    border-radius: 9px;
    background: var(--gka-navy) !important;
    color: #fff !important;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.65;
    text-decoration: none;
    cursor: pointer;
    transition: background .15s;
}
.gk-auth .gk-auth-submit:hover, .gk-auth .gk-auth-submit:focus-visible { background: #244568 !important; color: #fff !important; }
.gk-auth .gk-auth-submit:disabled { background: #455a75 !important; color: #fff !important; opacity: .75; cursor: not-allowed; }
.gk-auth .gk-auth-form.is-submitting .gk-auth-submit { cursor: wait; }
.gk-auth .gk-auth-recovery-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin-top: 19px; color: #95a1b2; font-size: 13px; line-height: 1.8; }
.gk-auth .gk-auth-recovery-links a, .gk-auth .gk-auth-switch a, .gk-auth .gk-auth-text-link { color: #344f74 !important; font-weight: 600; text-decoration: none; }
.gk-auth .gk-auth-recovery-links a:hover, .gk-auth .gk-auth-recovery-links a:focus-visible, .gk-auth .gk-auth-switch a:hover, .gk-auth .gk-auth-switch a:focus-visible, .gk-auth .gk-auth-text-link:hover, .gk-auth .gk-auth-text-link:focus-visible { color: #755317 !important; text-decoration: underline; text-underline-offset: 3px; }
.gk-auth .gk-auth-switch { margin: 23px 0 0; padding-top: 20px; border-top: 1px solid var(--gka-line); color: var(--gka-muted); font-size: 13px; line-height: 1.8; text-align: center; }
.gk-auth .gk-auth-switch a { margin-left: 5px; }
.gk-auth .gk-auth-notice { margin: 0 0 22px; padding: 13px 15px; border: 1px solid #dbc798; border-radius: 9px; background: #fbf5e8; color: #685020; font-size: 13px; line-height: 1.8; overflow-wrap: anywhere; }
.gk-auth .gk-auth-notice-success { border-color: #accbb7; background: #f0f8f3; color: #26593e; }
.gk-auth .gk-auth-error-summary { margin-bottom: 22px; padding: 13px 15px; border: 1px solid #ddb4ae; border-radius: 9px; background: #fff5f3; color: #8c3f37; font-size: 13px; line-height: 1.8; overflow-wrap: anywhere; }
.gk-auth .gk-auth-error-summary strong { color: #8c3f37; }
.gk-auth .gk-auth-error-summary ul { margin: 5px 0 0; padding-left: 19px; }
.gk-auth .gk-auth-error-summary li { margin: 0; }
.gk-auth .gk-auth-honeypot { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.gk-auth .gk-auth-readonly { margin-bottom: 25px; padding: 14px 17px; border: 1px solid var(--gka-line); border-radius: 10px; background: #f4f7fb; }
.gk-auth .gk-auth-readonly span, .gk-auth .gk-auth-readonly small { display: block; color: var(--gka-muted); font-size: 12px; line-height: 1.8; }
.gk-auth .gk-auth-readonly strong { display: block; margin: 3px 0; color: var(--gka-navy); font-size: 14px; font-weight: 600; line-height: 1.7; overflow-wrap: anywhere; }
.gk-auth .gk-auth-edit-section + .gk-auth-edit-section { margin-top: 30px; padding-top: 25px; border-top: 1px solid var(--gka-line); }
.gk-auth .gk-auth-edit-section h3, .gk-auth .gk-auth-account-summary h3 { margin: 0 0 7px; color: var(--gka-navy); font-size: 19px; font-weight: 700; line-height: 1.6; }
.gk-auth .gk-auth-edit-section > p { margin: 0 0 18px; color: var(--gka-muted); font-size: 13px; line-height: 1.8; }
.gk-auth .gk-auth-account-summary { padding: 12px 0 0; text-align: center; }
.gk-auth .gk-auth-account-summary p { margin: 0 0 22px; color: var(--gka-muted); font-size: 14px; line-height: 1.8; overflow-wrap: anywhere; }
.gk-auth .gk-auth-summary-emblem { display: inline-flex; align-items: center; justify-content: center; width: 58px; height: 58px; margin-bottom: 17px; border: 1px solid #e6d3ab; border-radius: 17px; background: #fbf4e6; color: #7a591b; }
.gk-auth .gk-auth-summary-emblem svg { width: 28px; height: 28px; }
.gk-auth .gk-auth-account-summary .gk-auth-text-link { display: inline-block; margin-top: 17px; font-size: 13px; }
.gk-auth .gk-auth-social-options { margin: 25px 0 0; }
.gk-auth .gk-auth-social-note { margin: 14px 0 0; color: var(--gka-muted); font-size: 12px; line-height: 1.85; text-align: center; word-break: keep-all; overflow-wrap: anywhere; }
.gk-auth .gk-auth-divider { display: flex; align-items: center; gap: 13px; margin: 23px 0; color: var(--gka-muted); font-size: 12px; line-height: 1.75; text-align: center; }
.gk-auth .gk-auth-divider::before, .gk-auth .gk-auth-divider::after { content: ""; flex: 1 1 0; border-top: 1px solid var(--gka-line); }
.gk-auth .gk-auth-divider span { flex: 0 1 auto; }
.gk-auth .gksa-buttons { display: grid; justify-items: center; gap: 12px; min-width: 0; }
.gk-auth .gksa-start { width: 100%; max-width: 400px; margin: 0 auto; padding: 0; }
.gk-auth .gksa-button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; width: 100%; min-height: 44px; margin: 0; padding: 10px 18px; border: 1px solid var(--gka-line); border-radius: 6px; background: #fff !important; color: var(--gka-navy) !important; font-size: 14px; font-weight: 700; line-height: 1.5; text-align: center; text-decoration: none; cursor: pointer; }
.gk-auth .gksa-button--naver { border-color: #03a94d; background: #03a94d !important; color: #fff !important; font-size: 19px; }
.gk-auth .gksa-button--naver:hover, .gk-auth .gksa-button--naver:focus-visible { background: #03a94d !important; color: #fff !important; outline: 3px solid #132844; outline-offset: 3px; }
.gk-auth .gksa-provider-icon { display: inline-flex; flex: 0 0 20px; align-items: center; justify-content: center; width: 20px; height: 20px; line-height: 1; }
.gk-auth .gksa-provider-icon img, .gk-auth .gksa-provider-icon svg { display: block; width: 20px; height: 20px; max-width: none; margin: 0; }
.gk-auth .gksa-button:disabled { opacity: .65; cursor: not-allowed; }
.gk-auth .gksa-start.is-submitting .gksa-button { cursor: wait; }
.gk-auth .gksa-google { width: 100%; max-width: 400px; min-height: 40px; margin: 0 auto; }
.gk-auth .gksa-google [role="button"] * { box-sizing: content-box; }
.gk-auth .gksa-google-form, .gk-auth .gksa-google-preview { width: 100%; max-width: 400px; margin: 0 auto; padding: 0; }
.gk-auth .gksa-buttons--icons { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 16px; }
.gk-auth .gksa-buttons--icons .gksa-start, .gk-auth .gksa-buttons--icons .gksa-google-form, .gk-auth .gksa-buttons--icons .gksa-google-preview { display: flex; flex: 0 0 40px; align-items: center; justify-content: center; width: 40px; max-width: 40px; margin: 0; line-height: 0; }
.gk-auth .gksa-button--icon { width: 40px; min-width: 40px; height: 40px; min-height: 40px; padding: 0; border-radius: 50%; }
.gk-auth .gksa-buttons--icons .gksa-google { width: 40px; max-width: 40px; min-height: 40px; margin: 0; }
.gk-auth .gksa-buttons--icons .gksa-google-preview .gksa-button--google { width: 40px; min-width: 40px; height: 40px; min-height: 40px; padding: 0; border: 0; border-radius: 50%; font-size: 10px; }
.gk-auth .gksa-buttons--icons .gksa-google-preview .gksa-button--google img { display: block; width: 40px; height: 40px; max-width: none; }
.gk-auth .gk-auth-secondary-link { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 14px; border: 1px solid #b8c8da; border-radius: 8px; background: #f4f7fb; color: #25496f !important; font-size: 13px; font-weight: 700; line-height: 1.7; text-decoration: none; }
.gk-auth .gk-auth-secondary-link:hover, .gk-auth .gk-auth-secondary-link:focus-visible { border-color: #25496f; background: #eaf0f7; color: #132844 !important; }
.gk-auth .gksa-account { margin-top: 30px; padding-top: 25px; border-top: 1px solid var(--gka-line); }
.gk-auth .gksa-account h3 { margin: 0 0 7px; color: var(--gka-navy); font-size: 19px; font-weight: 700; line-height: 1.6; }
.gk-auth .gksa-account > p, .gk-auth .gksa-account-note { margin: 0 0 18px; color: var(--gka-muted); font-size: 13px; line-height: 1.85; word-break: keep-all; overflow-wrap: anywhere; }
.gk-auth .gksa-provider, .gk-auth .gksa-provider-row { min-width: 0; margin: 13px 0 0; padding: 15px; border: 1px solid var(--gka-line); border-radius: 10px; background: #f7f9fc; }
.gk-auth .gksa-provider h4, .gk-auth .gksa-provider-row h4 { margin: 0 0 4px; color: var(--gka-navy); font-size: 15px; line-height: 1.7; }
.gk-auth .gksa-provider p, .gk-auth .gksa-provider-row p { margin: 5px 0 12px; color: var(--gka-muted); font-size: 12px; line-height: 1.85; overflow-wrap: anywhere; }
.gk-auth .gksa-provider form, .gk-auth .gksa-provider-row form { margin-bottom: 0; }
.gk-auth .gksa-provider-info { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 6px 14px; margin-bottom: 12px; }
.gk-auth .gksa-provider-info strong { color: var(--gka-navy); font-size: 15px; line-height: 1.7; }
.gk-auth .gksa-provider-info span { color: var(--gka-muted); font-size: 12px; line-height: 1.8; }
.gk-auth .gksa-reauth { margin: 18px 0; padding: 15px; border: 1px solid var(--gka-line); border-radius: 10px; background: #f4f7fb; }
.gk-auth .gksa-reauth > .gk-auth-hint { margin: 0 0 14px; }
.gk-auth .gksa-reauth-form { margin: 0; padding: 0; }
.gk-auth .gksa-reauth-form label { display: block; color: var(--gka-navy); font-size: 14px; font-weight: 700; line-height: 1.8; }
.gk-auth .gksa-reauth-form label input { margin-top: 7px; font-weight: 400; }
.gk-auth .gksa-actions .gksa-button--naver { font-size: 15px; }
.gk-auth .gksa-unlink { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 9px 14px; border: 1px solid #aebed0; border-radius: 7px; background: #fff !important; color: #344f74 !important; font-size: 13px; font-weight: 600; line-height: 1.7; cursor: pointer; }
.gk-auth .gksa-unlink:hover, .gk-auth .gksa-unlink:focus-visible { border-color: #344f74; background: #eef3f9 !important; }
.gk-auth .gksa-unlink:disabled { opacity: .6; cursor: not-allowed; }
.gk-auth .gksa-pending-summary { margin-bottom: 22px; padding: 14px 16px; border: 1px solid var(--gka-line); border-radius: 10px; background: #f4f7fb; color: var(--gka-muted); font-size: 13px; line-height: 1.85; overflow-wrap: anywhere; }
.gk-auth .gksa-verify-form { margin-bottom: 20px; }
.gk-auth .gksa-send-code { margin: 12px 0 20px; }
.gk-auth .gksa-verify-form .gk-auth-submit { min-height: 44px; background: #f4f7fb !important; color: #25496f !important; border-color: #b8c8da; font-size: 13px; }
@media (max-width: 800px) {
    .gk-auth { grid-template-columns: minmax(220px, .72fr) minmax(0, 1.28fr); }
    .gk-auth .gk-auth-intro { padding: 30px 24px; }
    .gk-auth .gk-auth-panel { padding: 30px 25px; }
    .gk-auth .gk-auth-intro h2 { font-size: 27px; }
}
@media (max-width: 680px) {
    .gk-auth { display: block; margin: 16px auto 28px; border-radius: 17px; }
    .gk-auth .gk-auth-intro { padding: 22px 22px 24px; }
    .gk-auth .gk-auth-brand { margin-bottom: 15px; font-size: 14px; }
    .gk-auth .gk-auth-intro .gk-auth-eyebrow { display: none; }
    .gk-auth .gk-auth-intro h2 { margin-bottom: 8px; font-size: 24px; }
    .gk-auth .gk-auth-intro > p { font-size: 13px; line-height: 1.75; }
    .gk-auth .gk-auth-intro-list, .gk-auth .gk-auth-intro .gk-auth-intro-foot { display: none; }
    .gk-auth .gk-auth-panel { padding: 25px 21px 29px; }
    .gk-auth .gk-auth-heading { margin-bottom: 22px; }
    .gk-auth .gk-auth-heading h2 { font-size: 24px; }
    .gk-auth .gk-auth-field input:not([type="checkbox"]) { font-size: 16px; }
    .gk-auth .gksa-provider-row, .gk-auth .gksa-reauth { padding: 12px; }
}
@media (prefers-reduced-motion: reduce) {
    .gk-auth *, .gk-auth *::before, .gk-auth *::after { transition: none !important; scroll-behavior: auto !important; }
}