.auth-shell {
    display: grid;
    min-height: calc(100svh - var(--header-height));
    grid-template-columns: minmax(360px, 0.82fr) minmax(520px, 1.18fr);
}

.auth-shell__intro,
.auth-shell__card-wrap {
    display: flex;
    padding: clamp(56px, 8vw, 112px) clamp(32px, 7vw, 104px);
    justify-content: center;
    flex-direction: column;
}

.auth-shell__intro {
    background: var(--color-sage-soft);
    border-right: 1px solid #dce4da;
}

.auth-shell__intro h1,
.registration-shell__heading h1,
.success-card h1,
.logout-shell h1 {
    margin-bottom: 24px;
    font-family: var(--font-display);
    font-size: clamp(3.25rem, 6vw, 5.8rem);
    font-weight: 400;
    letter-spacing: -0.04em;
    line-height: 0.96;
}

.auth-shell__intro > p:not(.eyebrow) {
    max-width: 540px;
    margin-bottom: 34px;
    color: var(--color-ink-soft);
    font-size: 1.05rem;
    line-height: 1.75;
}

.auth-points {
    display: grid;
    margin: 0;
    padding: 0;
    gap: 16px;
    list-style: none;
}

.auth-points li {
    display: flex;
    align-items: center;
    gap: 13px;
    color: #46584a;
    font-size: 0.92rem;
    font-weight: 600;
}

.auth-points i {
    display: inline-flex;
    width: 38px;
    height: 38px;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    border: 1px solid #b9c6bb;
    border-radius: 50%;
    color: var(--color-sage);
    font-size: 1.15rem;
}

.auth-shell__card-wrap {
    align-items: center;
    background: var(--color-blush);
}

.auth-card {
    width: min(100%, 560px);
    padding: clamp(28px, 5vw, 54px);
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
}

.auth-card__heading {
    display: flex;
    margin-bottom: 32px;
    align-items: center;
    gap: 18px;
}

.auth-card__heading .eyebrow {
    margin-bottom: 2px;
}

.auth-card__heading h2,
.form-section__heading h2,
.registration-aside h2,
.success-next h2 {
    margin: 0;
    font-size: 1.65rem;
    line-height: 1.15;
}

.auth-card__icon,
.registration-aside__icon,
.success-card__icon {
    display: inline-flex;
    width: 54px;
    height: 54px;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-blush-strong);
    color: var(--color-berry);
    font-size: 1.65rem;
}

.auth-card__icon--large {
    width: 68px;
    height: 68px;
    margin-bottom: 24px;
    font-size: 2rem;
}

.auth-form {
    display: grid;
    gap: 20px;
}

.auth-form .field {
    gap: 8px;
}

.auth-form .field input,
.auth-form .field select {
    min-height: 54px;
    background: #fffefd;
}

.auth-form .field--icon > i {
    bottom: 16px;
}

.auth-form .button {
    margin-top: 6px;
}

.auth-card__footer {
    margin: 24px 0 0;
    padding-top: 22px;
    border-top: 1px solid var(--color-line);
    color: var(--color-ink-soft);
    font-size: 0.88rem;
    text-align: center;
}

.auth-card__footer a,
.form-actions a {
    color: var(--color-berry);
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.form-alert {
    display: flex;
    margin-bottom: 24px;
    padding: 16px 18px;
    align-items: flex-start;
    gap: 12px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    line-height: 1.55;
}

.form-alert--error {
    background: #fff0f2;
    border: 1px solid #f0c4ce;
    color: #7c173a;
}

.form-alert > i {
    margin-top: 2px;
    flex: 0 0 auto;
    font-size: 1.25rem;
}

.form-alert p,
.form-alert ul {
    margin: 0;
}

.form-alert ul {
    padding: 7px 0 0 18px;
}

.registration-shell {
    padding: clamp(56px, 8vw, 108px) 0 clamp(72px, 9vw, 124px);
    background: var(--color-paper);
}

.registration-shell__heading,
.registration-layout {
    width: min(calc(100% - 40px), 1180px);
    margin-inline: auto;
}

.registration-shell__heading {
    max-width: 820px;
    margin-bottom: clamp(42px, 6vw, 72px);
    text-align: center;
}

.registration-shell__heading h1 {
    margin-bottom: 20px;
}

.registration-shell__heading > p:last-child {
    max-width: 670px;
    margin: 0 auto;
    color: var(--color-ink-soft);
    font-size: 1.04rem;
}

.registration-layout {
    display: grid;
    grid-template-columns: minmax(280px, 0.62fr) minmax(580px, 1.38fr);
    align-items: start;
    gap: clamp(28px, 5vw, 66px);
}

.registration-aside {
    position: sticky;
    top: 28px;
    padding: clamp(28px, 4vw, 42px);
    background: var(--color-sage-soft);
    border: 1px solid #dce4da;
    border-radius: var(--radius-md);
}

.registration-aside__icon {
    margin-bottom: 24px;
    background: var(--color-white);
    color: var(--color-sage);
}

.registration-aside h2 {
    margin-bottom: 28px;
    font-size: 2rem;
}

.registration-aside__note {
    display: flex;
    margin: 30px 0 0;
    padding-top: 24px;
    align-items: flex-start;
    gap: 10px;
    border-top: 1px solid #d3ddd1;
    color: #526456;
    font-size: 0.82rem;
}

.registration-aside__note i {
    margin-top: 3px;
    color: var(--color-sage);
    font-size: 1.1rem;
}

.auth-card--registration {
    width: 100%;
    max-width: none;
}

.registration-form {
    gap: 34px;
}

.form-section {
    display: grid;
    gap: 24px;
}

.form-section + .form-section {
    padding-top: 34px;
    border-top: 1px solid var(--color-line);
}

.form-section__heading {
    display: grid;
    grid-template-columns: 42px 1fr;
    align-items: center;
    gap: 14px;
}

.form-section__heading > span {
    display: inline-flex;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-berry);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 700;
}

.form-section__heading p {
    margin: 3px 0 0;
    color: var(--color-ink-soft);
    font-size: 0.82rem;
}

.form-grid {
    display: grid;
    gap: 18px;
}

.form-grid--two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field-help {
    margin: -2px 0 0;
    color: var(--color-ink-soft);
    font-size: 0.74rem;
    line-height: 1.5;
}

.form-actions {
    display: flex;
    padding-top: 30px;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    border-top: 1px solid var(--color-line);
}

.form-actions p {
    margin: 0;
    color: var(--color-ink-soft);
    font-size: 0.84rem;
    text-align: right;
}

.success-shell {
    display: grid;
    width: min(calc(100% - 40px), 1180px);
    min-height: calc(100svh - var(--header-height));
    margin-inline: auto;
    padding-block: clamp(64px, 9vw, 120px);
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    align-items: center;
    gap: clamp(42px, 7vw, 92px);
}

.success-card__icon {
    width: 72px;
    height: 72px;
    margin-bottom: 30px;
    background: var(--color-sage-soft);
    color: var(--color-sage);
    font-size: 2rem;
}

.success-card h1 {
    font-size: clamp(3.2rem, 6vw, 5.25rem);
}

.success-card__lead {
    max-width: 660px;
    margin-bottom: 22px;
    color: var(--color-ink-soft);
    font-size: 1.08rem;
    line-height: 1.75;
}

.success-card__email {
    display: flex;
    margin-bottom: 34px;
    align-items: center;
    gap: 9px;
    color: var(--color-sage);
    font-size: 0.86rem;
    font-weight: 600;
}

.success-card__actions {
    display: flex;
    align-items: center;
    gap: 30px;
}

.success-next {
    padding: clamp(28px, 4vw, 42px);
    background: var(--color-blush);
    border: 1px solid var(--color-blush-strong);
    border-radius: var(--radius-md);
}

.success-next ol {
    display: grid;
    margin: 0;
    padding: 0;
    gap: 22px;
    list-style: none;
}

.success-next li {
    display: grid;
    grid-template-columns: 32px 1fr;
    gap: 13px;
}

.success-next li > span {
    display: inline-flex;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-white);
    color: var(--color-berry);
    font-size: 0.74rem;
    font-weight: 700;
}

.success-next h2 {
    margin: 1px 0 4px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 700;
}

.success-next li p {
    margin: 0;
    color: var(--color-ink-soft);
    font-size: 0.8rem;
    line-height: 1.55;
}

.logout-shell {
    display: grid;
    min-height: calc(100svh - var(--header-height));
    padding: 64px 20px;
    place-items: center;
    background: var(--color-blush);
}

.auth-card--compact {
    max-width: 640px;
    text-align: center;
}

.auth-card--compact .auth-card__icon {
    margin-inline: auto;
}

.logout-shell h1 {
    margin-bottom: 18px;
    font-size: clamp(3rem, 6vw, 4.8rem);
}

.logout-shell__lead {
    max-width: 490px;
    margin: 0 auto 30px;
    color: var(--color-ink-soft);
}

.logout-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
}

@media (max-width: 960px) {
    .auth-shell {
        grid-template-columns: 1fr;
    }

    .auth-shell__intro {
        border-right: 0;
        border-bottom: 1px solid #dce4da;
    }

    .auth-shell__intro h1 br {
        display: none;
    }

    .auth-shell__card-wrap {
        padding-block: 64px;
    }

    .registration-layout,
    .success-shell {
        grid-template-columns: 1fr;
    }

    .registration-aside {
        position: static;
    }

    .registration-aside .auth-points {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 680px) {
    .auth-shell__intro,
    .auth-shell__card-wrap {
        padding: 48px 20px;
    }

    .auth-shell__intro h1,
    .registration-shell__heading h1,
    .success-card h1,
    .logout-shell h1 {
        font-size: clamp(2.8rem, 14vw, 4rem);
    }

    .auth-card {
        padding: 26px 20px;
    }

    .auth-card__heading {
        align-items: flex-start;
    }

    .registration-shell__heading,
    .registration-layout,
    .success-shell {
        width: min(calc(100% - 28px), 1180px);
    }

    .registration-aside .auth-points,
    .form-grid--two {
        grid-template-columns: 1fr;
    }

    .form-actions,
    .success-card__actions,
    .logout-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .form-actions .button,
    .success-card__actions .button,
    .logout-actions .button {
        width: 100%;
    }

    .form-actions p {
        text-align: center;
    }

    .success-card__actions .text-link {
        text-align: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    .auth-shell *,
    .registration-shell *,
    .success-shell *,
    .logout-shell * {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}