/**
 * MediaBold INSIDE 로그인
 * — 밝은 톤 · 프리미엄 인트로 + 카드
 */
:root {
    --mb-auth-ink: #141416;
    --mb-auth-muted: #6a6a70;
    --mb-auth-line: #e6e6ea;
    --mb-auth-soft: #f3f3f5;
    --mb-auth-red: #d21f26;
    --mb-auth-red-dark: #b0181e;
    --mb-auth-shell: 1280px;
    --mb-auth-pad-x: clamp(24px, 3.5vw, 40px);
    --mb-auth-card-shadow:
        0 1px 0 rgba(255, 255, 255, 0.8) inset,
        0 24px 64px rgba(17, 17, 17, 0.08),
        0 8px 20px rgba(17, 17, 17, 0.04);
}

body.mb-auth {
    margin: 0;
    background: #f7f7f8;
    color: var(--mb-auth-ink);
    font-family: var(--mb-font, 'Paperlogy', sans-serif);
    -webkit-font-smoothing: antialiased;
    overflow-x: clip;
}
body.mb-auth .mb-wrapper--auth,
body.mb-auth .mb-body--auth,
body.mb-auth .mb-main--auth {
    margin: 0;
    padding: 0;
    width: 100%;
    max-width: none;
    background: transparent;
}
body.mb-auth .mb-main--auth { display: block; }

.mb-auth {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
}

/* —— Atmosphere —— */
.mb-auth-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
    background:
        linear-gradient(165deg, #fbfbfc 0%, #f4f4f6 48%, #efeff2 100%);
}
.mb-auth-bg-grid {
    position: absolute;
    inset: 0;
    opacity: 0.45;
    background-image:
        linear-gradient(rgba(17, 17, 17, 0.028) 1px, transparent 1px),
        linear-gradient(90deg, rgba(17, 17, 17, 0.028) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 70% 60% at 35% 40%, #000 20%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 35% 40%, #000 20%, transparent 75%);
    pointer-events: none;
}
.mb-auth-bg-orb {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    filter: blur(2px);
}
.mb-auth-bg-orb--a {
    width: min(52vw, 560px);
    height: min(52vw, 560px);
    left: -8%;
    top: -12%;
    background: radial-gradient(circle, rgba(210, 31, 38, 0.11) 0%, transparent 68%);
}
.mb-auth-bg-orb--b {
    width: min(40vw, 420px);
    height: min(40vw, 420px);
    right: -6%;
    bottom: 8%;
    background: radial-gradient(circle, rgba(20, 20, 22, 0.05) 0%, transparent 70%);
}

/* soft light that drifts across */
.mb-auth-bg-sweep {
    position: absolute;
    top: -25%;
    left: 0;
    width: min(38vw, 420px);
    height: 150%;
    pointer-events: none;
    background: linear-gradient(
        100deg,
        transparent 0%,
        rgba(255, 255, 255, 0) 28%,
        rgba(255, 255, 255, 0.55) 48%,
        rgba(210, 31, 38, 0.045) 52%,
        rgba(255, 255, 255, 0) 72%,
        transparent 100%
    );
    transform: translate3d(-60%, 0, 0) skewX(-16deg);
    animation: mb-auth-sweep 16s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    will-change: transform, opacity;
}
.mb-auth-bg-sweep--soft {
    width: min(22vw, 240px);
    opacity: 0.55;
    background: linear-gradient(
        100deg,
        transparent 0%,
        rgba(255, 255, 255, 0) 35%,
        rgba(255, 255, 255, 0.4) 50%,
        rgba(255, 255, 255, 0) 65%,
        transparent 100%
    );
    animation-duration: 22s;
    animation-delay: 7s;
}

@keyframes mb-auth-sweep {
    0% {
        transform: translate3d(-70%, 0, 0) skewX(-16deg);
        opacity: 0;
    }
    8% { opacity: 1; }
    78% { opacity: 1; }
    100% {
        transform: translate3d(340%, 0, 0) skewX(-16deg);
        opacity: 0;
    }
}

.mb-auth-bg::after {
    content: "INSIDE";
    position: absolute;
    right: -3vw;
    bottom: -4vh;
    font-size: clamp(5.5rem, 20vw, 16rem);
    font-weight: 800;
    letter-spacing: -0.05em;
    line-height: 0.85;
    color: rgba(20, 20, 22, 0.03);
    pointer-events: none;
    user-select: none;
}

/* —— Top bar = 대외 홈 헤더와 같은 좌우 위치 —— */
.mb-auth-top {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: 100%;
    min-height: var(--mb-header-h, 72px);
    padding: 0 var(--mb-gutter, 80px);
    box-sizing: border-box;
}

/* —— Body shell (본문만 1280) —— */
.mb-auth-shell {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: var(--mb-auth-shell);
    margin: 0 auto;
    padding: 0 var(--mb-auth-pad-x);
    box-sizing: border-box;
}
.mb-auth-logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    line-height: 0;
}
.mb-auth-logo-img {
    display: block;
    height: 20px;
    width: auto;
}
.mb-auth-exit {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--mb-auth-muted);
    text-decoration: none;
    padding-bottom: 2px;
    border-bottom: 1px solid rgba(106, 106, 112, 0.35);
    transition: color .2s, border-color .2s;
}
.mb-auth-exit:hover {
    color: var(--mb-auth-ink);
    border-bottom-color: var(--mb-auth-ink);
}

.mb-auth-home {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 10px;
    border: 1px solid rgba(20, 20, 22, 0.08);
    background: rgba(255, 255, 255, 0.72);
    color: var(--mb-auth-ink);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-decoration: none;
    box-shadow: 0 6px 16px rgba(17, 17, 17, 0.04);
    transition: color .2s, border-color .2s, background-color .2s, box-shadow .2s;
}
.mb-auth-home-icon {
    width: 16px;
    height: 16px;
    color: var(--mb-auth-red);
}
.mb-auth-home:hover {
    color: var(--mb-auth-red);
    border-color: rgba(210, 31, 38, 0.28);
    background: #fff;
    box-shadow: 0 10px 22px rgba(17, 17, 17, 0.06);
}

/* —— Stage —— */
.mb-auth-stage {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(460px, 540px);
    align-items: start;
    gap: clamp(40px, 5.5vw, 72px);
    width: 100%;
    padding: clamp(32px, 5vh, 64px) 0 clamp(40px, 5vh, 64px);
    box-sizing: border-box;
}
.mb-auth-stage--register {
    grid-template-columns: minmax(0, 1fr) minmax(460px, 540px);
    align-items: start;
}
.mb-auth-stage--agree,
.mb-auth-stage--form {
    grid-template-columns: minmax(0, 0.9fr) minmax(480px, 620px);
    align-items: start;
    padding-top: clamp(32px, 6vh, 64px);
}

.mb-auth-card--agree,
.mb-auth-card--form {
    max-width: 100%;
}

.mb-auth-agree-block {
    margin: 0 0 22px;
}
.mb-auth-agree-title {
    margin: 0 0 10px;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: -0.01em;
}
.mb-auth-agree-box {
    max-height: 160px;
    overflow: auto;
    margin: 0 0 12px;
    padding: 14px 16px;
    border: 1px solid var(--mb-auth-line);
    border-radius: 12px;
    background: #fafafb;
    font-size: 13px;
    line-height: 1.65;
    color: #555;
    word-break: keep-all;
}
.mb-auth-agree-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}
.mb-auth-agree-table th,
.mb-auth-agree-table td {
    padding: 8px 6px;
    border-bottom: 1px solid #ebebef;
    text-align: left;
    vertical-align: top;
}
.mb-auth-agree-table th {
    color: #888;
    font-weight: 700;
}
.mb-auth-check--block {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 0 0 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--mb-auth-ink);
    line-height: 1.45;
}
.mb-auth-check--all {
    margin: 8px 0 24px;
    padding: 12px 14px;
    border-radius: 10px;
    background: var(--mb-auth-soft);
}
.mb-auth-req {
    margin-left: 6px;
    font-style: normal;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: var(--mb-auth-red);
}
.mb-auth-field-msg {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--mb-auth-muted);
}
.mb-auth-field--mail {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 8px 0 24px;
}
.mb-auth-card--form #captcha,
.mb-auth-card--form .captcha {
    margin: 0 0 20px;
}

.mb-auth-intro-main strong {
    color: var(--mb-auth-ink);
    font-weight: 800;
}

.mb-auth-intro {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    animation: mb-auth-rise 0.75s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.mb-auth-intro-main { max-width: 18em; }

.mb-auth-kicker {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 22px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.34em;
    color: var(--mb-auth-red);
}
.mb-auth-kicker::before {
    content: "";
    width: 28px;
    height: 2px;
    background: var(--mb-auth-red);
    border-radius: 1px;
}
.mb-auth-title {
    margin: 0;
    font-size: clamp(3.4rem, 7.2vw, 5.8rem);
    font-weight: 800;
    line-height: 0.9;
    letter-spacing: -0.04em;
}
.mb-auth-title-line { display: block; }
.mb-auth-title-line--accent {
    color: var(--mb-auth-red);
    margin-top: 0.04em;
}
.mb-auth-lead {
    margin: 28px 0 0;
    max-width: 18em;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.75;
    letter-spacing: -0.01em;
    color: var(--mb-auth-muted);
    word-break: keep-all;
}

/* —— Quote —— */
.mb-auth-quote {
    position: relative;
    margin-top: 28px;
    padding: 26px 28px 26px 26px;
    max-width: 26em;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.9);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.9) inset,
        0 18px 40px rgba(17, 17, 17, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: mb-auth-quote-in 0.85s cubic-bezier(0.22, 1, 0.36, 1) 0.15s both;
}
.mb-auth-quote::before {
    content: "";
    position: absolute;
    left: 0;
    top: 18px;
    bottom: 18px;
    width: 3px;
    background: linear-gradient(180deg, var(--mb-auth-red), rgba(210, 31, 38, 0.25));
    border-radius: 0 2px 2px 0;
}
.mb-auth-quote-label {
    margin: 0 0 12px;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.36em;
    color: var(--mb-auth-red);
}
.mb-auth-quote-text {
    margin: 0;
    min-height: 2.8em;
    font-size: clamp(1.08rem, 1.9vw, 1.32rem);
    font-weight: 700;
    line-height: 1.6;
    letter-spacing: -0.025em;
    word-break: keep-all;
    color: var(--mb-auth-ink);
    quotes: none;
}
.mb-auth-quote-typed { white-space: pre-wrap; }
.mb-auth-quote-caret {
    display: inline-block;
    width: 2px;
    height: 1.05em;
    margin-left: 2px;
    vertical-align: -0.12em;
    background: var(--mb-auth-red);
    opacity: 0;
}
.mb-auth-quote-caret.is-on {
    opacity: 1;
    animation: mb-auth-caret 0.85s steps(1) infinite;
}
.mb-auth-quote-author {
    display: block;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid rgba(20, 20, 22, 0.08);
    font-size: 12px;
    font-style: normal;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--mb-auth-muted);
    opacity: 0;
    transform: translateY(4px);
    transition: opacity .35s ease, transform .35s ease;
}
.mb-auth-quote-author.is-pending { min-height: 1.2em; }
.mb-auth-quote-author.is-shown {
    opacity: 1;
    transform: translateY(0);
}
.mb-auth-quote-author::before {
    content: "— ";
}

@keyframes mb-auth-caret {
    50% { opacity: 0; }
}

@keyframes mb-auth-rise {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes mb-auth-quote-in {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes mb-auth-card-in {
    from { opacity: 0; transform: translateY(22px) scale(0.985); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* —— Login card —— */
.mb-auth-card {
    position: relative;
    width: 100%;
    background: #fff;
    border: 1px solid rgba(20, 20, 22, 0.06);
    border-radius: 22px;
    padding: clamp(40px, 4.5vw, 56px);
    box-shadow: var(--mb-auth-card-shadow);
    animation: mb-auth-card-in 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.08s both;
    box-sizing: border-box;
}
.mb-auth-card::before {
    content: "";
    position: absolute;
    left: 32px;
    right: 32px;
    top: 0;
    height: 3px;
    border-radius: 0 0 3px 3px;
    background: var(--mb-auth-red);
}
.mb-auth-card-head {
    margin-bottom: 32px;
}
.mb-auth-card-eyebrow {
    margin: 0 0 12px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.32em;
    color: var(--mb-auth-red);
}
.mb-auth-card-title {
    margin: 0;
    font-size: 34px;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
}
.mb-auth-card--register .mb-auth-card-title {
    font-size: clamp(1.7rem, 2.5vw, 2rem);
    letter-spacing: -0.02em;
    line-height: 1.25;
}
.mb-auth-card-desc {
    margin: 12px 0 0;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.7;
    color: var(--mb-auth-muted);
    word-break: keep-all;
}
.mb-auth-error {
    margin: 0 0 18px;
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid rgba(210, 31, 38, 0.28);
    background: rgba(210, 31, 38, 0.08);
    color: var(--mb-auth-red-dark);
    font-size: 13px;
    font-weight: 600;
    line-height: 1.5;
    word-break: keep-all;
}
.mb-auth-card-desc strong {
    color: var(--mb-auth-ink);
    font-weight: 800;
}

.mb-auth fieldset {
    margin: 0;
    padding: 0;
    border: 0;
}
.mb-auth legend {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
}

.mb-auth-field {
    margin: 0 0 20px;
}
.mb-auth-label {
    display: block;
    margin: 0 0 9px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #3a3a40;
}
.mb-auth-input {
    display: block;
    width: 100%;
    height: 58px;
    margin: 0;
    padding: 0 18px;
    border: 1px solid #e0e0e4;
    border-radius: 12px;
    background: #fafafb;
    color: var(--mb-auth-ink);
    font: inherit;
    font-size: 16px;
    font-weight: 500;
    outline: 0;
    transition: border-color .2s, box-shadow .2s, background-color .2s;
    box-sizing: border-box;
}
.mb-auth-input::placeholder {
    color: #a0a0a8;
    font-weight: 500;
}
.mb-auth-input:hover {
    border-color: #cfcfd4;
    background: #fff;
}
.mb-auth-input:focus {
    border-color: var(--mb-auth-red);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(210, 31, 38, 0.1);
}
.mb-auth-input--locked,
.mb-auth-input[readonly] {
    background: #f0f0f2;
    color: #3a3a40;
    cursor: default;
}
.mb-auth-alert {
    margin: 0 0 20px;
    padding: 12px 14px;
    border-radius: 10px;
    background: rgba(210, 31, 38, 0.08);
    border: 1px solid rgba(210, 31, 38, 0.22);
    color: var(--mb-auth-red);
    font-size: 13px;
    font-weight: 700;
    line-height: 1.5;
    word-break: keep-all;
}

.mb-auth-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 6px 0 26px;
    font-size: 13px;
}
.mb-auth-check {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--mb-auth-muted);
    font-weight: 500;
    user-select: none;
}
.mb-auth-check input { accent-color: var(--mb-auth-red); width: 15px; height: 15px; }
.mb-auth-link {
    color: var(--mb-auth-muted);
    text-decoration: none;
    font-weight: 600;
    transition: color .2s;
}
.mb-auth-link:hover {
    color: var(--mb-auth-ink);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.mb-auth-btn {
    display: block;
    width: 100%;
    height: 58px;
    border: 0;
    border-radius: 12px;
    background: var(--mb-auth-red);
    color: #fff;
    font: inherit;
    font-size: 17px;
    font-weight: 800;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: background-color .2s;
}
.mb-auth-btn span { display: inline-block; }
.mb-auth-btn--link {
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-sizing: border-box;
}
.mb-auth-btn--link:hover {
    color: #fff;
}
.mb-auth-btn:hover {
    background: var(--mb-auth-red-dark);
}
.mb-auth-btn:active {
    background: #9e151a;
}

.mb-auth-card--register .mb-auth-foot {
    margin-top: 26px;
    line-height: 1.8;
}
.mb-auth-card--register .mb-auth-foot a {
    display: inline-block;
    margin-top: 8px;
}

.mb-auth-foot {
    margin: 28px 0 0;
    padding-top: 22px;
    border-top: 1px solid var(--mb-auth-line);
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    color: var(--mb-auth-muted);
}
.mb-auth-foot a {
    color: var(--mb-auth-ink);
    font-weight: 800;
    text-decoration: none;
    border-bottom: 1px solid rgba(20, 20, 22, 0.35);
    margin: 0 2px;
    transition: color .2s, border-color .2s;
}
.mb-auth-foot a:hover {
    color: var(--mb-auth-red);
    border-bottom-color: var(--mb-auth-red);
}
.mb-auth-foot-note {
    display: inline-block;
    margin-left: 4px;
    padding: 2px 8px;
    border-radius: 6px;
    background: var(--mb-auth-soft);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #7a7a82;
    vertical-align: middle;
}

@media (max-width: 1100px) {
    .mb-auth-stage,
    .mb-auth-stage--register,
    .mb-auth-stage--agree,
    .mb-auth-stage--form {
        grid-template-columns: minmax(0, 1fr) minmax(400px, 480px);
        gap: 40px;
    }
}

@media (max-width: 960px) {
    .mb-auth-top { padding-left: var(--mb-gutter-md, 40px); padding-right: var(--mb-gutter-md, 40px); }
}
@media (max-width: 860px) {
    .mb-auth-top { padding-left: var(--mb-gutter-sm, 20px); padding-right: var(--mb-gutter-sm, 20px); min-height: 64px; }
    .mb-auth-shell {
        padding-left: 20px;
        padding-right: 20px;
    }
    .mb-auth-stage {
        grid-template-columns: 1fr;
        gap: 40px;
        padding-top: 36px;
        padding-bottom: max(48px, env(safe-area-inset-bottom, 0px) + 32px);
        min-height: auto;
    }
    .mb-auth-intro { min-height: 0; }
    .mb-auth-intro-main { max-width: none; }
    .mb-auth-title { font-size: clamp(2.9rem, 12vw, 4.1rem); }
    .mb-auth-bg::after { font-size: 26vw; }
    .mb-auth-quote {
        margin-top: 28px;
        max-width: none;
        width: 100%;
    }
    .mb-auth-quote-text { font-size: 1.08rem; }
    .mb-auth-card {
        border-radius: 18px;
        padding: 32px 24px;
    }
    .mb-auth-card-title { font-size: 28px; }
}

@media (prefers-reduced-motion: reduce) {
    .mb-auth-intro,
    .mb-auth-quote,
    .mb-auth-card { animation: none; }
    .mb-auth-bg-sweep { animation: none; opacity: 0; }
    .mb-auth-quote-caret { display: none; }
    .mb-auth-quote-author { opacity: 1; transform: none; }
}