body.auth-login-page,
body.auth-monitor-login-page {
    margin: 0;
    min-height: 100vh;
    display: grid;
    place-items: center;
    font-family: "Noto Sans KR", "Segoe UI", sans-serif;
}

body.auth-login-page {
    --auth-line: rgba(255, 255, 255, 0.08);
    --auth-text: #f6f8fb;
    --auth-muted: rgba(255, 255, 255, 0.62);
    --auth-accent: #3f7cff;
    --auth-accent-strong: #205fe8;
    color: var(--auth-text);
    background:
        radial-gradient(circle at top left, rgba(63, 124, 255, 0.22), transparent 28%),
        radial-gradient(circle at bottom right, rgba(32, 95, 232, 0.18), transparent 24%),
        linear-gradient(160deg, #0b1220 0%, #111a2a 100%);
}

body.auth-monitor-login-page {
    --auth-line: #d7e2f1;
    --auth-text: #162235;
    --auth-muted: #61738f;
    --auth-accent: #2b7fff;
    --auth-accent-strong: #1f62d8;
    color: var(--auth-text);
    background:
        radial-gradient(circle at top left, rgba(43, 127, 255, 0.12), transparent 28%),
        linear-gradient(180deg, #eef4fb 0%, #f8fbff 100%);
}

body.auth-login-page .auth-shell,
body.auth-monitor-login-page .auth-shell {
    width: min(920px, calc(100vw - 32px));
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    overflow: hidden;
}

body.auth-login-page .auth-shell {
    border: 1px solid var(--auth-line);
    border-radius: 28px;
    background: rgba(10, 15, 24, 0.3);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

body.auth-monitor-login-page .auth-shell {
    grid-template-columns: 1fr 0.92fr;
    border: 1px solid var(--auth-line);
    border-radius: 26px;
    background: #fff;
    box-shadow: 0 28px 70px rgba(17, 32, 59, 0.12);
}

.auth-hero {
    color: #fff;
}

body.auth-login-page .auth-hero {
    padding: 44px 40px;
    background: linear-gradient(135deg, rgba(63, 124, 255, 0.95), rgba(32, 95, 232, 0.82));
}

body.auth-monitor-login-page .auth-hero {
    padding: 42px 38px;
    background: linear-gradient(135deg, #2b7fff, #1f62d8);
}

body.auth-login-page .auth-hero h1,
body.auth-monitor-login-page .auth-hero h1 {
    margin: 0 0 18px;
    line-height: 1.04;
}

body.auth-login-page .auth-hero h1 {
    font-size: clamp(2.3rem, 4vw, 4rem);
    letter-spacing: -0.06em;
}

body.auth-monitor-login-page .auth-hero h1 {
    font-size: clamp(2.1rem, 4vw, 3.6rem);
}

.auth-hero p {
    margin: 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.02rem;
}

.auth-panel {
    padding: 42px 34px;
}

body.auth-login-page .auth-panel {
    background: rgba(20, 28, 42, 0.88);
    backdrop-filter: blur(18px);
}

body.auth-login-page .auth-panel h2,
body.auth-monitor-login-page .auth-panel h2 {
    margin: 0 0 10px;
}

body.auth-login-page .auth-panel h2 {
    font-size: 1.9rem;
    letter-spacing: -0.05em;
}

body.auth-monitor-login-page .auth-panel h2 {
    font-size: 1.8rem;
}

.auth-sub {
    margin: 0 0 24px;
    color: var(--auth-muted);
}

.auth-error {
    margin-bottom: 18px;
    padding: 12px 14px;
    border-radius: 12px;
}

body.auth-login-page .auth-error {
    background: rgba(255, 114, 114, 0.12);
    color: #ffd3d3;
    border: 1px solid rgba(255, 114, 114, 0.24);
}

body.auth-monitor-login-page .auth-error {
    background: rgba(255, 114, 114, 0.12);
    color: #b42318;
}

.auth-field {
    display: grid;
    gap: 8px;
    margin-bottom: 16px;
}

.auth-field label {
    font-size: .95rem;
    color: var(--auth-muted);
}

.auth-field input {
    width: 100%;
    border: 1px solid var(--auth-line);
    border-radius: 12px;
    padding: 13px 14px;
    background: #fff;
    color: inherit;
    font: inherit;
    outline: none;
}

body.auth-login-page .auth-field input {
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--auth-text);
    font-size: 1rem;
    padding: 14px 16px;
}

.auth-field input:focus {
    border-color: rgba(43, 127, 255, 0.9);
    box-shadow: 0 0 0 3px rgba(43, 127, 255, 0.12);
}

body.auth-login-page .auth-field input:focus {
    border-color: rgba(63, 124, 255, 0.8);
    box-shadow: 0 0 0 3px rgba(63, 124, 255, 0.18);
}

.auth-submit {
    width: 100%;
    margin-top: 8px;
    border: 0;
    border-radius: 14px;
    padding: 14px 18px;
    background: linear-gradient(135deg, var(--auth-accent), var(--auth-accent-strong));
    color: #fff;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

body.auth-login-page .auth-submit {
    border-radius: 16px;
    font-size: 1rem;
}

.auth-hint {
    margin-top: 16px;
    color: var(--auth-muted);
    font-size: .92rem;
}

@media (max-width: 900px) {
    body.auth-login-page .auth-shell,
    body.auth-monitor-login-page .auth-shell {
        grid-template-columns: 1fr;
    }
}