.auth-page {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(2.5rem, 7vw, 7rem);
    max-width: 1120px;
    margin: 0 auto;
    padding: clamp(1rem, 4vw, 3.5rem) 0 clamp(3rem, 6vw, 5.5rem);
    color: var(--nbn-ink, #202820);
}

.auth-intro {
    display: flex;
    flex-direction: column;
    min-height: 520px;
}

.auth-back {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    gap: .7rem;
    width: fit-content;
    color: var(--nbn-muted, #64695e);
    font-size: .78rem;
    line-height: 1.5;
    text-decoration: none;
}

.auth-back span {
    font-size: 1.2rem;
}

.auth-back:hover {
    color: var(--nbn-ink, #202820);
    text-decoration: underline;
    text-underline-offset: .25em;
}

.auth-intro-copy {
    padding-top: clamp(3rem, 6vw, 6rem);
}

.auth-title {
    margin: 1.25rem 0 1.75rem;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: clamp(3.2rem, 5.6vw, 5.3rem);
    font-weight: 400;
    line-height: 1.03;
    letter-spacing: -.055em;
    text-wrap: balance;
}

.auth-lead {
    max-width: 350px;
    margin: 0;
    color: var(--nbn-muted, #64695e);
    font-size: .98rem;
    line-height: 1.85;
}

.auth-intro-note {
    margin-top: auto;
    padding-top: 3.5rem;
}

.auth-note-line {
    display: block;
    width: 42px;
    height: 1px;
    margin-bottom: 1.3rem;
    background: var(--nbn-accent, #56644f);
}

.auth-intro-note p {
    margin: 0;
    color: var(--nbn-accent, #56644f);
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 1.2rem;
    font-style: italic;
    line-height: 1.65;
}

.auth-panel {
    min-width: 0;
    padding: clamp(1.5rem, 3.5vw, 3rem);
    border: 1px solid var(--nbn-line, #dddcd2);
    background: var(--nbn-surface, #fffefa);
}

.auth-panel-heading {
    margin-bottom: 2rem;
}

.auth-panel-heading h2 {
    margin: .85rem 0 .75rem;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: clamp(1.7rem, 2.5vw, 2rem);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -.025em;
}

.auth-panel-heading > p:last-child {
    margin: 0;
    color: var(--nbn-muted, #64695e);
    font-size: .84rem;
    line-height: 1.75;
}

.auth-form {
    display: grid;
    gap: 1.4rem;
}

.auth-field {
    display: grid;
    align-content: start;
    gap: .6rem;
    min-width: 0;
}

.auth-field label {
    color: var(--nbn-ink, #202820);
    font-size: .8rem;
    font-weight: 600;
    line-height: 1.5;
}

.auth-field input {
    box-sizing: border-box;
    width: 100%;
    min-width: 0;
    min-height: 50px;
    padding: .8rem .95rem;
    border: 1px solid var(--nbn-line, #dddcd2);
    border-radius: 0;
    background: var(--nbn-surface, #fffefa);
    color: var(--nbn-ink, #202820);
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.4;
    transition: border-color .15s ease, background-color .15s ease;
}

.auth-field input:hover {
    border-color: var(--nbn-muted, #64695e);
}

.auth-field input:focus-visible,
.auth-checkbox input:focus-visible {
    outline: 2px solid var(--nbn-accent, #56644f);
    outline-offset: 3px;
    border-color: var(--nbn-accent, #56644f);
}

.auth-field input[aria-invalid="true"] {
    border-color: #9c3b30;
}

.auth-field-error {
    margin: 0;
    color: #9c3b30;
    font-size: .78rem;
    line-height: 1.6;
}

.auth-label-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .35rem 1rem;
}

.auth-text-link {
    color: var(--nbn-accent, #56644f);
    font-size: .78rem;
    font-weight: 600;
    line-height: 1.5;
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: .25em;
}

.auth-text-link:hover {
    color: var(--nbn-ink, #202820);
}

.auth-back:focus-visible,
.auth-text-link:focus-visible {
    outline: 2px solid var(--nbn-accent, #56644f);
    outline-offset: 4px;
}

.auth-submit,
.auth-secondary {
    width: 100%;
    justify-content: center;
    min-height: 50px;
}

.auth-submit {
    margin-top: .5rem;
}

.auth-panel-footer {
    display: grid;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.6rem;
    border-top: 1px solid var(--nbn-line, #dddcd2);
    text-align: center;
}

.auth-panel-footer p {
    margin: 0;
    color: var(--nbn-muted, #64695e);
    font-size: .82rem;
    line-height: 1.7;
}

.auth-panel-footer--inline {
    display: flex;
    justify-content: center;
    align-items: baseline;
    flex-wrap: wrap;
    gap: .5rem;
}

.auth-field-pair {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.auth-input-uppercase {
    text-transform: uppercase;
}

.auth-notice {
    margin: 0;
    padding: .85rem 1rem;
    border-left: 2px solid var(--nbn-accent, #56644f);
    background: var(--nbn-paper, #f7f4ee);
    font-size: .82rem;
    line-height: 1.6;
    overflow-wrap: anywhere;
}

.auth-consents {
    display: grid;
    gap: 1rem;
    padding-top: .35rem;
}

.auth-checkbox {
    display: flex;
    align-items: flex-start;
    gap: .75rem;
    color: var(--nbn-muted, #64695e);
    font-size: .75rem;
    line-height: 1.8;
    cursor: pointer;
}

.auth-checkbox input {
    flex: 0 0 auto;
    width: 17px;
    height: 17px;
    margin-top: .2rem;
    accent-color: var(--nbn-accent, #56644f);
}

.auth-consents .auth-field-error {
    margin-top: .4rem;
}

.auth-page--register .auth-intro {
    min-height: 590px;
}

.auth-page--recovery .auth-intro {
    min-height: 0;
}

@media (max-width: 800px) {
    .auth-page {
        grid-template-columns: minmax(0, 1fr);
        gap: 2.25rem;
        max-width: 560px;
        padding-top: .5rem;
    }

    .auth-intro,
    .auth-page--register .auth-intro {
        min-height: 0;
    }

    .auth-intro-copy {
        padding-top: 2rem;
    }

    .auth-title {
        margin-top: 1rem;
        margin-bottom: 1rem;
        font-size: clamp(2.7rem, 10vw, 4rem);
    }

    .auth-lead {
        max-width: 440px;
        font-size: .9rem;
    }

    .auth-intro-note {
        display: none;
    }

    .auth-panel {
        padding: 1.75rem;
    }
}

@media (max-width: 400px) {
    .auth-panel {
        padding: 1.25rem;
    }

    .auth-field-pair {
        grid-template-columns: minmax(0, 1fr);
        gap: 1.4rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .auth-field input {
        transition: none;
    }
}