.sf-auth-shell {
    min-height: calc(100vh - var(--sf-navbar-height, 4rem));
    padding: 24px 16px 48px;
    background: #f3f5fa;
    display: flex;
    align-items: center;
    justify-content: center;
}
[data-bs-theme="dark"] .sf-auth-shell { background: #0f1729; }

.sf-auth-card {
    width: 100%;
    max-width: 520px;
    background: var(--phoenix-card-bg, #fff);
    border: 1px solid var(--phoenix-border-color, rgba(15, 23, 42, .10));
    border-radius: 14px;
    padding: 32px;
    box-shadow: 0 12px 36px rgba(15, 23, 42, .06);
}
[data-bs-theme="dark"] .sf-auth-card {
    box-shadow: 0 12px 36px rgba(0, 0, 0, .40);
}
.sf-auth-card-narrow {
    max-width: 440px;
    text-align: center;
}
.sf-auth-card a { color: #1d4ed8; }
[data-bs-theme="dark"] .sf-auth-card a { color: #93c5fd; }

.sf-auth-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 0 20px;
    text-decoration: none;
}
.sf-auth-brand img {
    max-height: 44px;
    max-width: min(240px, 100%);
    width: auto;
    display: block;
    object-fit: contain;
}

.sf-auth-h1 {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -.01em;
    margin: 0 0 6px;
    text-align: center;
    color: rgba(var(--phoenix-body-color-rgb), .96);
}
.sf-auth-sub {
    color: rgba(var(--phoenix-body-color-rgb), .62);
    font-size: .9rem;
    margin: 0 0 24px;
    text-align: center;
    line-height: 1.5;
}
.sf-auth-sub a { font-weight: 700; }

.sf-auth-alert {
    margin: 0 0 20px;
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid transparent;
    font-size: .9rem;
    line-height: 1.5;
}
.sf-auth-alert.is-success { background: rgba(22, 163, 74, .10); border-color: rgba(22, 163, 74, .30); color: #15803d; }
.sf-auth-alert.is-danger  { background: rgba(220, 38, 38, .10);  border-color: rgba(220, 38, 38, .30);  color: #b91c1c; }
.sf-auth-alert.is-warning { background: rgba(245, 158, 11, .12); border-color: rgba(245, 158, 11, .35); color: #b45309; }
.sf-auth-alert.is-info    { background: rgba(37, 99, 235, .10);  border-color: rgba(37, 99, 235, .30);  color: #1d4ed8; }
[data-bs-theme="dark"] .sf-auth-alert.is-success { color: #86efac; }
[data-bs-theme="dark"] .sf-auth-alert.is-danger  { color: #fca5a5; }

.sf-auth-field-err { display: block; margin-top: 4px; font-size: .82rem; font-weight: 600; color: #b91c1c; }
.sf-auth-field-err:empty { display: none; }
[data-bs-theme="dark"] .sf-auth-field-err { color: #fca5a5; }
.sf-auth-hint { display: block; margin-top: 4px; font-size: .8rem; color: #64748b; }
[data-bs-theme="dark"] .sf-auth-hint { color: #94a3b8; }
[data-bs-theme="dark"] .sf-auth-alert.is-warning { color: #fcd34d; }
[data-bs-theme="dark"] .sf-auth-alert.is-info    { color: #93c5fd; }

.sf-auth-form .form-label {
    font-weight: 700;
    font-size: .82rem;
    margin-bottom: 6px;
    color: rgba(var(--phoenix-body-color-rgb), .88);
}
.sf-auth-form .form-control,
.sf-auth-form .form-select {
    border-radius: 10px;
    padding: 10px 12px;
    border: 1px solid var(--phoenix-border-color, rgba(15, 23, 42, .14));
    background: var(--phoenix-card-bg);
    color: rgba(var(--phoenix-body-color-rgb), .92);
    font-size: .92rem;
}
.sf-auth-form .form-control:focus,
.sf-auth-form .form-select:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .14);
}
[data-bs-theme="dark"] .sf-auth-form .form-control:focus,
[data-bs-theme="dark"] .sf-auth-form .form-select:focus {
    border-color: #60a5fa;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, .18);
}
.sf-auth-form .form-control.is-invalid,
.sf-auth-form .form-select.is-invalid {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, .12);
}

.sf-auth-form-row { margin-bottom: 14px; }
.sf-auth-form-row:last-of-type { margin-bottom: 0; }

.sf-auth-code {
    text-transform: uppercase;
    letter-spacing: .18em;
    font-variant-numeric: tabular-nums;
}
.sf-auth-code::placeholder { letter-spacing: .12em; }

.sf-auth-row-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 4px 0 16px;
    font-size: .85rem;
}
.sf-auth-row-actions a { font-weight: 700; }

.sf-auth-inline-form {
    display: flex;
    align-items: stretch;
    gap: 8px;
    margin: 0 0 16px;
}
.sf-auth-inline-form .form-control { flex: 1 1 auto; }

.sf-auth-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 20px;
    border-radius: 10px;
    background: var(--sf-accent);
    color: var(--sf-on-accent);
    font-weight: 700;
    font-size: 1rem;
    border: 0;
    cursor: pointer;
    transition: background-color .12s ease;
    text-decoration: none;
    margin: 8px 0 0;
}
.sf-auth-submit:hover { background: color-mix(in srgb, var(--sf-accent) 85%, black); color: var(--sf-on-accent); }
.sf-auth-submit:disabled { opacity: .55; cursor: not-allowed; }
.sf-auth-card a.sf-auth-submit { color: var(--sf-on-accent); text-decoration: none; }
[data-bs-theme="dark"] .sf-auth-card a.sf-auth-submit { color: var(--sf-brand-ink, var(--sf-color-on-fill)); }
[data-bs-theme="dark"] .sf-auth-submit { background: var(--sf-brand, var(--sf-color-primary-fill)); color: var(--sf-brand-ink, var(--sf-color-on-fill)); }
[data-bs-theme="dark"] .sf-auth-submit:hover { background: color-mix(in srgb, var(--sf-brand, var(--sf-color-primary-fill)) 85%, black); color: var(--sf-brand-ink, var(--sf-color-on-fill)); }

.sf-auth-submit-compact {
    padding: 10px 18px;
    width: auto;
    flex: 0 0 auto;
    font-size: .92rem;
    margin: 0;
}

.sf-auth-links {
    margin: 18px 0 0;
    text-align: center;
    font-size: .85rem;
    color: rgba(var(--phoenix-body-color-rgb), .65);
}
.sf-auth-links a { font-weight: 700; }
.sf-auth-links .sf-auth-link-row { display: block; margin-top: 6px; }

.sf-auth-footnote {
    margin: 18px 0 0;
    text-align: center;
    color: rgba(var(--phoenix-body-color-rgb), .60);
    font-size: .82rem;
}
.sf-auth-footnote a { font-weight: 700; }

.sf-auth-terms {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 4px 0 16px;
    font-size: .85rem;
    color: rgba(var(--phoenix-body-color-rgb), .80);
    line-height: 1.45;
}
.sf-auth-terms input { margin-top: 3px; }
.sf-auth-terms a { font-weight: 700; }

.sf-auth-captcha {
    display: flex;
    justify-content: center;
    margin: 0 0 16px;
}

.sf-auth-paused-ico {
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    border-radius: 14px;
    background: rgba(245, 158, 11, .14);
    color: #b45309;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}
[data-bs-theme="dark"] .sf-auth-paused-ico {
    background: rgba(245, 158, 11, .22);
    color: #fcd34d;
}

.sf-auth-doc-list {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
    border: 1px solid var(--phoenix-border-color, rgba(15, 23, 42, .10));
    border-radius: 10px;
    overflow: hidden;
}
.sf-auth-doc-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 16px;
    border-top: 1px solid var(--phoenix-border-color, rgba(15, 23, 42, .06));
}
.sf-auth-doc-row:first-child { border-top: 0; }
.sf-auth-doc-main { min-width: 0; flex: 1 1 auto; }
.sf-auth-doc-title {
    font-weight: 700;
    color: rgba(var(--phoenix-body-color-rgb), .94);
    font-size: .95rem;
}
.sf-auth-doc-version {
    display: inline-block;
    margin-left: 6px;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: .7rem;
    font-weight: 700;
    background: rgba(37, 99, 235, .12);
    color: #1d4ed8;
    vertical-align: middle;
}
[data-bs-theme="dark"] .sf-auth-doc-version {
    background: rgba(96, 165, 250, .18);
    color: #93c5fd;
}
.sf-auth-doc-summary {
    color: rgba(var(--phoenix-body-color-rgb), .62);
    font-size: .85rem;
    margin-top: 4px;
}
.sf-auth-doc-link {
    font-size: .9rem;
    font-weight: 700;
    color: #1d4ed8;
    text-decoration: none;
    flex: 0 0 auto;
}
.sf-auth-doc-link:hover { text-decoration: underline; }

.sf-auth-brand .sf-auth-logo-dark { display: none; }
[data-bs-theme="dark"] .sf-auth-brand .sf-auth-logo-light { display: none; }
[data-bs-theme="dark"] .sf-auth-brand .sf-auth-logo-dark { display: block; }
[data-bs-theme="dark"] .sf-auth-brand [data-sf-dark-logo].is-plaque {
    background: var(--sf-navbar-brand-plaque);
    padding: 4px 10px;
    border-radius: 8px;
}

.sf-auth-provider { margin: 0; }
.sf-auth-or {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 18px 0;
    font-size: .8rem;
    color: var(--sf-color-text-muted);
}
.sf-auth-or::before,
.sf-auth-or::after {
    content: "";
    flex: 1;
    border-top: 1px solid var(--sf-color-border-strong);
}
.sf-auth-fallback > summary {
    display: flex;
    align-items: baseline;
    gap: 8px;
    cursor: pointer;
    list-style: none;
    margin: 0 0 12px;
    font-size: .85rem;
    font-weight: 700;
    color: var(--sf-color-text-secondary);
}
.sf-auth-fallback > summary::-webkit-details-marker { display: none; }
.sf-auth-fallback > summary i { flex: 0 0 auto; font-size: .7rem; transition: transform .12s ease; }
.sf-auth-fallback[open] > summary i { transform: rotate(90deg); }
.sf-auth-submit.is-secondary,
[data-bs-theme="dark"] .sf-auth-submit.is-secondary {
    background: transparent;
    color: var(--sf-color-text);
    border: 1px solid var(--sf-color-border-strong);
}
.sf-auth-submit.is-secondary:hover,
[data-bs-theme="dark"] .sf-auth-submit.is-secondary:hover {
    background: var(--sf-color-surface-2, var(--sf-color-surface));
    color: var(--sf-color-text);
}

.sf-auth-shell.is-top { align-items: flex-start; }

.sf-terms-card {
    max-width: 720px;
    padding: 40px;
    border-radius: 16px;
}
.sf-terms-card .sf-auth-h1,
.sf-terms-card .sf-auth-sub { text-align: left; }
.sf-terms-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 0 0 14px;
    padding: 5px 10px;
    border-radius: var(--sf-radius-pill, 999px);
    background: var(--sf-accent-soft);
    color: var(--sf-accent-ink);
    font-size: .78rem;
    font-weight: 600;
}
.sf-terms-h1 {
    font-size: 1.75rem;
    line-height: 1.2;
    letter-spacing: -.01em;
    margin-bottom: 8px;
}
.sf-terms-lead {
    font-size: .97rem;
    line-height: 1.55;
    margin-bottom: 0;
}
.sf-terms-h2 {
    margin: 0 0 12px;
    font-size: .875rem;
    font-weight: 700;
    color: var(--sf-color-text);
}

.sf-terms-changes {
    margin-top: 24px;
    padding: 18px 20px;
    border: 1px solid var(--sf-color-border);
    border-radius: 12px;
    background: var(--sf-color-canvas-soft);
}
.sf-terms-changes ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}
.sf-terms-changes li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: .875rem;
    line-height: 1.5;
    color: var(--sf-color-text-muted);
}
.sf-terms-changes li i {
    flex: 0 0 auto;
    margin-top: 3px;
    color: var(--sf-accent);
}
.sf-terms-changes strong {
    color: var(--sf-color-text);
    font-weight: 600;
}

.sf-terms-docs-label { margin-top: 26px; margin-bottom: 10px; }
.sf-terms-docs {
    list-style: none;
    margin: 0;
    padding: 0;
    border: 1px solid var(--sf-color-border);
    border-radius: 12px;
    overflow: hidden;
}
.sf-terms-doc + .sf-terms-doc { border-top: 1px solid var(--sf-color-border); }

.sf-terms-doc-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    list-style: none;
}
summary.sf-terms-doc-row { cursor: pointer; }
summary.sf-terms-doc-row::-webkit-details-marker { display: none; }
summary.sf-terms-doc-row::marker { content: ""; }
summary.sf-terms-doc-row:focus-visible {
    outline: 2px solid var(--sf-accent);
    outline-offset: -2px;
}
.sf-terms-doc-icon {
    flex: 0 0 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--sf-accent-soft);
    color: var(--sf-accent-ink);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
}
.sf-terms-doc-main {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.sf-terms-doc-title {
    font-size: .95rem;
    font-weight: 700;
    color: var(--sf-color-text);
}
.sf-terms-doc-meta {
    font-size: .8rem;
    color: var(--sf-color-text-muted);
}
.sf-terms-read,
.sf-auth-card .sf-terms-doc-row .sf-auth-doc-link {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 40px;
    padding: 0 14px;
    border: 1px solid var(--sf-color-border-strong);
    border-radius: 9px;
    background: var(--sf-color-surface);
    color: var(--sf-color-text);
    font-size: .84rem;
    font-weight: 600;
    text-decoration: none;
}
.sf-terms-doc-row:hover .sf-terms-read,
.sf-auth-card .sf-terms-doc-row .sf-auth-doc-link:hover { border-color: var(--sf-accent); }
.sf-terms-read i { font-size: .72rem; transition: transform var(--sf-dur-fast, .15s) ease; }
.sf-terms-read-close { display: none; }
.sf-terms-doc-details[open] .sf-terms-read-open { display: none; }
.sf-terms-doc-details[open] .sf-terms-read-close { display: inline; }
.sf-terms-doc-details[open] .sf-terms-read i { transform: rotate(180deg); }

.sf-terms-actions { margin-top: 24px; }
.sf-terms-assent {
    margin: 0 0 14px;
    font-size: .84rem;
    line-height: 1.55;
    color: var(--sf-color-text-muted);
}
.sf-terms-assent strong {
    color: var(--sf-color-text);
    font-weight: 600;
}
.sf-terms-foot {
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px solid var(--sf-color-border);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px 20px;
    font-size: .84rem;
    color: var(--sf-color-text-muted);
}
.sf-terms-foot form { margin: 0; }
.sf-terms-signout {
    padding: 0;
    border: 0;
    background: none;
    font: inherit;
    font-weight: 600;
    color: var(--sf-accent-ink);
    text-decoration: underline;
    cursor: pointer;
}
.sf-terms-note {
    margin: 10px 0 0;
    font-size: .78rem;
    line-height: 1.5;
    color: var(--sf-color-text-muted);
}

@media (prefers-reduced-motion: reduce) {
    .sf-terms-read i { transition: none; }
}

@media (max-width: 640px) {
    .sf-terms-card { padding: 20px; }
    .sf-terms-h1 { font-size: 1.4rem; }
    .sf-terms-changes { padding: 14px 16px; }
    .sf-terms-doc-row { padding: 14px; gap: 12px; }
    .sf-terms-actions {
        position: sticky;
        bottom: 0;
        z-index: 1;
        margin: 20px -20px 0;
        padding: 12px 20px 16px;
        background: var(--sf-color-surface);
        border-top: 1px solid var(--sf-color-border);
        box-shadow: var(--sf-shadow-md);
    }
}