:root {
    color-scheme: light;
    --auth-ink: #15213a;
    --auth-muted: #65738a;
    --auth-line: #dfe5ee;
    --auth-soft: #f3f6fa;
    --auth-blue: #31578f;
    --auth-blue-dark: #294b7b;
    --auth-error: #a52b35;
}

html {
    min-width: 320px;
    background: #eef2f7;
    scrollbar-color: #6f8199 #e6ebf2;
    scrollbar-width: auto;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
    width: 12px;
}

html::-webkit-scrollbar-track,
body::-webkit-scrollbar-track {
    background: #e6ebf2;
}

html::-webkit-scrollbar-thumb,
body::-webkit-scrollbar-thumb {
    background: #6f8199;
    border: 3px solid #e6ebf2;
    border-radius: 999px;
}

html::-webkit-scrollbar-thumb:hover,
body::-webkit-scrollbar-thumb:hover {
    background: #465b75;
}

body.rustud-auth-page {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    color: var(--auth-ink);
    background: #eef2f7;
    font-family: Inter, "Segoe UI", Arial, sans-serif;
}

.rustud-auth-page *,
.rustud-auth-page *::before,
.rustud-auth-page *::after {
    box-sizing: border-box;
}

.rustud-auth-page .rustud-site-header__mobile-actions--single {
    grid-template-columns: 1fr;
}

.rustud-auth-skip {
    position: fixed;
    top: 10px;
    left: 12px;
    z-index: 10000;
    padding: 10px 14px;
    color: #fff;
    background: #102b36;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 750;
    text-decoration: none;
    transform: translateY(-180%);
}

.rustud-auth-skip:focus {
    transform: translateY(0);
}

.rustud-auth-main {
    display: flex;
    align-items: center;
    min-height: calc(100vh - 72px);
    padding: 56px 24px;
    background:
        linear-gradient(135deg, rgba(236, 242, 250, .94), rgba(248, 250, 253, .98)),
        #f5f7fa;
}

.rustud-auth-shell {
    display: grid;
    grid-template-columns: minmax(280px, .82fr) minmax(360px, 1fr);
    width: min(100%, 980px);
    margin: 0 auto;
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--auth-line);
    border-radius: 24px;
    box-shadow: 0 24px 70px rgba(18, 39, 67, .12);
}

.rustud-auth-intro {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 52px 46px;
    color: #fff;
    background: #102b36;
}

.rustud-auth-kicker {
    margin: 0 0 16px;
    color: #9fbaff;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .07em;
    text-transform: uppercase;
}

.rustud-auth-intro h2 {
    margin: 0;
    font-size: clamp(28px, 3.2vw, 40px);
    line-height: 1.08;
    letter-spacing: -.025em;
}

.rustud-auth-intro p {
    margin: 22px 0 0;
    color: #d7e3e7;
    font-size: 16px;
    line-height: 1.65;
}

.rustud-auth-benefits {
    display: grid;
    gap: 12px;
    margin: 28px 0 0;
    padding: 0;
    list-style: none;
}

.rustud-auth-benefits li {
    position: relative;
    padding-left: 24px;
    color: #edf4f6;
    font-size: 14px;
    line-height: 1.45;
}

.rustud-auth-benefits li::before {
    position: absolute;
    top: .5em;
    left: 0;
    width: 8px;
    height: 8px;
    content: "";
    background: #78a0ff;
    border-radius: 50%;
}

.rustud-auth-panel {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 48px clamp(28px, 5vw, 62px);
}

.rustud-auth-panel h1 {
    margin: 0;
    color: var(--auth-ink);
    font-size: clamp(28px, 3vw, 36px);
    line-height: 1.15;
    letter-spacing: -.025em;
}

.rustud-auth-lead {
    margin: 12px 0 0;
    color: var(--auth-muted);
    font-size: 15px;
    line-height: 1.55;
}

.rustud-auth-socials {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 28px;
}

.rustud-auth-social {
    display: flex;
    align-items: center;
    min-height: 50px;
    padding: 8px 14px;
    gap: 11px;
    color: #27354b;
    background: #fff;
    border: 1px solid #d8e0ea;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 750;
    text-decoration: none;
    transition: border-color .18s ease, background .18s ease, transform .18s ease;
}

.rustud-auth-social:hover,
.rustud-auth-social:focus-visible {
    background: #f7f9fc;
    border-color: #aebed2;
    transform: translateY(-1px);
}

.rustud-auth-social img {
    width: 28px;
    height: 28px;
    object-fit: contain;
}

.rustud-auth-divider {
    display: flex;
    align-items: center;
    margin: 25px 0 21px;
    gap: 12px;
    color: #8894a6;
    font-size: 12px;
}

.rustud-auth-divider::before,
.rustud-auth-divider::after {
    flex: 1 1 auto;
    height: 1px;
    content: "";
    background: #e1e6ee;
}

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

.rustud-auth-field {
    display: grid;
    gap: 8px;
}

.rustud-auth-field label {
    color: #344158;
    font-size: 13px;
    font-weight: 750;
}

.rustud-auth-input-wrap {
    position: relative;
}

.rustud-auth-field input {
    width: 100%;
    min-height: 50px;
    margin: 0;
    padding: 0 15px;
    color: #15213a;
    background: #fff;
    border: 1px solid #cfd8e5;
    border-radius: 12px;
    box-shadow: none;
    font: 500 16px/1.2 Inter, "Segoe UI", Arial, sans-serif;
    appearance: none;
    transition: border-color .18s ease, box-shadow .18s ease;
}

.rustud-auth-input-wrap input[type="password"],
.rustud-auth-input-wrap input[data-password-input] {
    padding-right: 92px;
}

.rustud-auth-field input:focus {
    border-color: #5578aa;
    box-shadow: 0 0 0 4px rgba(49, 87, 143, .12);
    outline: none;
}

.rustud-auth-password-toggle {
    position: absolute;
    top: 50%;
    right: 7px;
    min-width: 74px;
    min-height: 36px;
    padding: 0 10px;
    color: #3f5574;
    background: #f1f4f8;
    border: 0;
    border-radius: 9px;
    font: 700 12px/1 Inter, "Segoe UI", Arial, sans-serif;
    cursor: pointer;
    transform: translateY(-50%);
}

.rustud-auth-hint {
    margin: 0;
    color: #748196;
    font-size: 12px;
    line-height: 1.45;
}

.rustud-auth-row {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-top: -4px;
}

.rustud-auth-link {
    color: var(--auth-blue);
    font-size: 13px;
    font-weight: 750;
    text-decoration: none;
}

.rustud-auth-link:hover,
.rustud-auth-link:focus-visible {
    color: var(--auth-blue-dark);
    text-decoration: underline;
}

.rustud-auth-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 50px;
    margin: 2px 0 0;
    padding: 0 22px;
    color: #fff;
    background: var(--auth-blue);
    border: 1px solid var(--auth-blue);
    border-radius: 12px;
    box-shadow: 0 10px 24px rgba(49, 87, 143, .18);
    font: 800 15px/1 Inter, "Segoe UI", Arial, sans-serif;
    cursor: pointer;
    text-decoration: none;
    transition: background .18s ease, transform .18s ease, box-shadow .18s ease;
}

.rustud-auth-submit:hover,
.rustud-auth-submit:focus-visible {
    background: var(--auth-blue-dark);
    box-shadow: 0 13px 28px rgba(49, 87, 143, .24);
    transform: translateY(-1px);
}

.rustud-auth-submit[disabled] {
    cursor: wait;
    opacity: .72;
    transform: none;
}

.rustud-auth-message {
    margin: 0 0 20px;
    padding: 12px 14px;
    color: #7e2028;
    background: #fff2f3;
    border: 1px solid #f0c7cb;
    border-radius: 11px;
    font-size: 13px;
    line-height: 1.45;
}

.rustud-auth-client-error:empty {
    display: none;
}

.rustud-auth-client-error {
    color: var(--auth-error);
    font-size: 13px;
    line-height: 1.45;
}

.rustud-auth-legal,
.rustud-auth-switch {
    margin: 18px 0 0;
    color: #748196;
    font-size: 12px;
    line-height: 1.55;
    text-align: center;
}

.rustud-auth-switch {
    color: #56657b;
    font-size: 14px;
}

.rustud-auth-legal a,
.rustud-auth-switch a {
    color: var(--auth-blue);
    font-weight: 750;
}

.rustud-auth-role-grid {
    display: grid;
    gap: 14px;
    margin-top: 28px;
}

.rustud-auth-role {
    display: block;
    padding: 18px;
    color: var(--auth-ink);
    background: #f7f9fc;
    border: 1px solid #dce3ed;
    border-radius: 14px;
    text-decoration: none;
    transition: border-color .18s ease, background .18s ease, transform .18s ease;
}

.rustud-auth-role:hover,
.rustud-auth-role:focus-visible {
    background: #f1f5fa;
    border-color: #9eb1ca;
    transform: translateY(-1px);
}

.rustud-auth-role strong,
.rustud-auth-role span {
    display: block;
}

.rustud-auth-role strong {
    font-size: 16px;
}

.rustud-auth-role span {
    margin-top: 6px;
    color: var(--auth-muted);
    font-size: 13px;
    line-height: 1.45;
}

.rustud-auth-check {
    text-align: center;
}

.rustud-auth-check__mark {
    display: grid;
    width: 62px;
    height: 62px;
    margin: 0 auto 20px;
    color: #fff;
    background: var(--auth-blue);
    border-radius: 50%;
    place-items: center;
    font-size: 28px;
    font-weight: 900;
}

.rustud-auth-check__email {
    display: inline-block;
    max-width: 100%;
    margin-top: 18px;
    padding: 9px 13px;
    overflow-wrap: anywhere;
    color: #294f84;
    background: #eef4fc;
    border-radius: 999px;
    font-weight: 750;
}

.rustud-auth-check__hint {
    margin-top: 18px;
}

.rustud-auth-check__note {
    margin: 14px 0 0;
    color: #3d4c62;
    font-size: 14px;
    font-weight: 650;
    line-height: 1.5;
}

.rustud-auth-check__actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 26px;
}

.rustud-auth-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0 18px;
    color: var(--auth-blue);
    background: #f2f5f9;
    border: 1px solid #d5dee9;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 800;
    text-decoration: none;
}

.rustud-auth-secondary:hover,
.rustud-auth-secondary:focus-visible {
    color: var(--auth-blue-dark);
    background: #eaf0f7;
    border-color: #aebed2;
}

.rustud-auth-page :focus-visible {
    outline: 3px solid rgba(49, 87, 143, .32);
    outline-offset: 3px;
}

@media (max-width: 820px) {
    .rustud-auth-main {
        align-items: flex-start;
        min-height: calc(100vh - 64px);
        padding: 28px 16px 40px;
    }

    .rustud-auth-shell {
        grid-template-columns: 1fr;
        max-width: 570px;
        border-radius: 20px;
    }

    .rustud-auth-intro {
        padding: 28px 30px;
    }

    .rustud-auth-intro h2 {
        font-size: 27px;
    }

    .rustud-auth-intro p {
        margin-top: 12px;
    }

    .rustud-auth-benefits {
        display: none;
    }

    .rustud-auth-panel {
        padding: 34px 28px 38px;
    }
}

@media (max-width: 520px) {
    .rustud-auth-main {
        padding-right: 10px;
        padding-left: 10px;
    }

    .rustud-auth-shell {
        border-radius: 16px;
    }

    .rustud-auth-intro {
        padding: 24px 22px;
    }

    .rustud-auth-intro p {
        font-size: 14px;
    }

    .rustud-auth-panel {
        padding: 30px 20px 34px;
    }

    .rustud-auth-socials {
        grid-template-columns: 1fr;
    }

    .rustud-auth-check__actions {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    .rustud-auth-page *,
    .rustud-auth-page *::before,
    .rustud-auth-page *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
    }
}