html {
    color-scheme: dark;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #1d2230;
    color: #f5f7ff;
}

.site-header {
    border-bottom: 1px solid #2d3446;
    background: #252b3b;
}

.shell {
    width: min(1232px, calc(100% - 32px));
    margin: 0 auto;
}

.header-content {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand,
.nav-link {
    text-decoration: none;
}

.brand {
    color: #f8fbff;
    font-size: 1.65rem;
    font-weight: 800;
    line-height: 1;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 48px;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    min-height: 68px;
    border-bottom: 2px solid transparent;
    color: #26b8f2;
    font-size: 1rem;
    font-weight: 500;
    transition: border-color 160ms ease, color 160ms ease;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.is-active {
    border-bottom-color: #31b9f4;
    color: #f8fbff;
}

.nav-link:focus-visible {
    outline: 3px solid #7dd8ff;
    outline-offset: 3px;
}

.login-page {
    padding: 40px 0 96px;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #b8c3d8;
    font-size: 1rem;
}

.breadcrumbs a {
    color: #129ef3;
    text-decoration: none;
}

.breadcrumbs a:hover,
.breadcrumbs a:focus-visible {
    color: #f8fbff;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.page-rule {
    margin: 36px 0 36px;
    border-top: 1px solid #3275a2;
}

.login-intro {
    margin-bottom: 28px;
}

.login-intro h1 {
    margin: 0 0 18px;
    color: #f3f6ff;
    font-size: 1.7rem;
    line-height: 1.2;
}

.login-intro p {
    margin: 0;
    color: #aeb9d3;
    font-size: 1rem;
}

.login-form {
    padding: 42px 36px 32px;
    border: 1px solid #2b3448;
    border-radius: 8px;
    background: #222838;
}

.form-row {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 36px;
    align-items: start;
}

.form-row + .form-row {
    margin-top: 32px;
}

.field-label {
    display: grid;
    gap: 6px;
    padding-top: 2px;
    color: #f1f5ff;
    font-size: 1.05rem;
    font-weight: 750;
}

.field-label small {
    color: #9aa6bc;
    font-size: 0.72rem;
    font-weight: 650;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.field-control input {
    width: 100%;
    min-height: 42px;
    padding: 8px 12px;
    border: 1px solid #07101f;
    border-radius: 6px;
    background: #030817;
    color: #f7faff;
    font: inherit;
}

.field-control input:focus {
    border-color: #2f7ff0;
    outline: 2px solid #2f7ff0;
    outline-offset: 0;
}

.form-errors {
    margin: 0 0 28px;
    padding: 14px 16px;
    border: 1px solid #8f4c5a;
    border-radius: 6px;
    background: #392333;
    color: #ffdce3;
}

.form-errors p,
.field-error {
    margin: 0;
}

.field-error {
    margin-top: 8px;
    color: #ffb3c1;
    font-size: 0.9rem;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 34px;
}

.form-actions button {
    min-height: 42px;
    min-width: 112px;
    padding: 0 22px;
    border: 1px solid #2aaee7;
    border-radius: 6px;
    background: #31b9f4;
    color: #07111d;
    cursor: pointer;
    font: inherit;
    font-weight: 600;
}

.form-actions button:hover,
.form-actions button:focus-visible {
    background: #67cdf8;
    border-color: #67cdf8;
}

.form-actions button:focus-visible {
    outline: 3px solid #7dd8ff;
    outline-offset: 3px;
}

@media (max-width: 560px) {
    .header-content {
        min-height: 64px;
    }

    .brand {
        font-size: 1.35rem;
    }

    .nav-link {
        min-height: 64px;
    }

    .login-page {
        padding: 28px 0 64px;
    }

    .page-rule {
        margin: 28px 0;
    }

    .login-form {
        padding: 28px 20px 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .form-actions {
        justify-content: stretch;
    }

    .form-actions button {
        width: 100%;
    }
}