.settings-page {
    --settings-accent: var(--hub-blue, #2563eb);
    --settings-accent-dark: var(--hub-blue-dark, #1d4ed8);
    --settings-accent-soft: var(--hub-blue-soft, #eff6ff);
    --settings-text: var(--hub-text, #101828);
    --settings-muted: var(--hub-muted, #667085);
    --settings-border: var(--hub-border, #e4e7ec);
    --settings-border-strong: var(--hub-border-strong, #cfd4dc);
    --settings-surface: var(--hub-surface, #fff);
    --settings-surface-soft: var(--hub-surface-soft, #f7f8fa);
    width: min(1120px, calc(100% - 32px));
    margin-inline: auto;
    padding: 64px 0 88px;
}

.settings-page-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 30px;
}

.settings-page-heading > div {
    min-width: 0;
}

.settings-page-heading h1 {
    max-width: 760px;
    margin: 9px 0 11px;
    color: var(--settings-text);
    font-size: clamp(2.45rem, 5vw, 3.7rem);
    font-weight: 760;
    line-height: 1.02;
    letter-spacing: -.05em;
}

.settings-page-heading p {
    max-width: 680px;
    margin: 0;
    color: var(--settings-muted);
    font-size: 1rem;
    line-height: 1.65;
}

.settings-heading-back {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    gap: 9px;
    padding: 10px 14px;
    color: var(--settings-text);
    font-size: .86rem;
    font-weight: 700;
    text-decoration: none;
    border: 1px solid var(--settings-border);
    border-radius: 12px;
    background: var(--settings-surface);
}

.settings-heading-back:hover {
    color: var(--settings-text);
    border-color: var(--settings-border-strong);
    transform: translateY(-1px);
}

.settings-success {
    min-height: 52px;
    display: flex;
    align-items: center;
    gap: 11px;
    margin-bottom: 20px;
    padding: 13px 16px;
    color: #067647;
    font-size: .9rem;
    font-weight: 650;
    border: 1px solid #abefc6;
    border-radius: 14px;
    background: #ecfdf3;
}

.settings-workspace {
    display: grid;
    grid-template-columns: 248px minmax(0, 1fr);
    align-items: start;
    gap: 20px;
}

.settings-sidebar,
.settings-panel {
    border: 1px solid var(--settings-border);
    background: var(--settings-surface);
    box-shadow: 0 14px 34px rgba(16, 24, 40, .055);
}

.settings-sidebar {
    position: sticky;
    top: 88px;
    display: flex;
    flex-direction: column;
    min-height: 540px;
    padding: 18px;
    border-radius: 18px;
}

.settings-sidebar-mark {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 2px 2px 20px;
    border-bottom: 1px solid var(--settings-border);
}

.settings-sidebar-mark > span {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    flex: 0 0 40px;
    color: #fff;
    border-radius: 12px;
    background: var(--settings-text);
}

.settings-sidebar-mark strong,
.settings-sidebar-mark small {
    display: block;
}

.settings-sidebar-mark strong {
    color: var(--settings-text);
    font-size: .94rem;
    line-height: 1.35;
}

.settings-sidebar-mark small {
    margin-top: 3px;
    color: var(--settings-muted);
    font-size: .72rem;
    line-height: 1.45;
}

.settings-nav {
    display: grid;
    gap: 7px;
    margin-top: 18px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
}

.settings-nav-item {
    appearance: none;
    width: 100%;
    min-height: 52px;
    display: grid;
    grid-template-columns: 32px minmax(0, 1fr) 16px;
    align-items: center;
    gap: 10px;
    padding: 8px 11px;
    color: var(--settings-muted);
    text-align: start;
    border: 1px solid transparent;
    border-radius: 12px;
    background: transparent;
}

.settings-nav-item > span:nth-child(2) {
    font-size: .84rem;
    font-weight: 680;
}

.settings-nav-icon {
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    color: var(--settings-muted);
    border-radius: 9px;
    background: var(--settings-surface-soft);
}

.settings-nav-arrow {
    color: var(--settings-muted);
    font-size: .72rem;
}

.settings-nav-item:hover {
    color: var(--settings-text);
    border-color: var(--settings-border);
    background: var(--settings-surface-soft);
}

.settings-page .settings-nav-item.active {
    color: var(--settings-accent-dark);
    border-color: #bfdbfe;
    background: var(--settings-accent-soft);
}

.settings-page .settings-nav-item.active .settings-nav-icon {
    color: #fff;
    background: var(--settings-accent);
}

.settings-page .settings-nav-item.active .settings-nav-arrow {
    color: var(--settings-accent);
}

.settings-sidebar-summary {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    margin-top: 20px;
    padding: 7px 12px;
    overflow: hidden;
    border: 1px solid var(--settings-border);
    border-radius: 12px;
    background: var(--settings-surface-soft);
}

.settings-sidebar-summary > div {
    width: 100%;
    min-height: 45px;
    min-width: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--settings-border);
}

.settings-sidebar-summary > div:last-child {
    border-bottom: 0;
}

.settings-sidebar-summary span {
    min-width: 0;
    color: var(--settings-muted);
    font-size: .68rem;
    font-weight: 600;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.settings-sidebar-summary output {
    min-width: 36px;
    padding: 4px 6px;
    color: var(--settings-text);
    font-size: .72rem;
    font-weight: 800;
    line-height: 1;
    text-align: center;
    border: 1px solid var(--settings-border);
    border-radius: 7px;
    background: var(--settings-surface);
}

.settings-help-link {
    min-height: 46px;
    display: grid;
    grid-template-columns: 20px minmax(0, 1fr) 16px;
    align-items: center;
    gap: 9px;
    margin-top: auto;
    padding: 10px 8px 2px;
    color: var(--settings-muted);
    font-size: .8rem;
    font-weight: 650;
    text-decoration: none;
}

.settings-help-link:hover {
    color: var(--settings-text);
}

.settings-panel {
    min-width: 0;
    overflow: clip;
    border-radius: 20px;
}

.settings-tab-panel[hidden] {
    display: none !important;
}

.settings-panel-heading {
    min-height: 126px;
    display: flex;
    align-items: center;
    gap: 17px;
    padding: 28px 32px;
    border-bottom: 1px solid var(--settings-border);
    background:
        radial-gradient(circle at 92% 8%, rgba(37, 99, 235, .09), transparent 34%),
        linear-gradient(135deg, var(--settings-surface-soft), var(--settings-surface));
}

.settings-panel-icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    flex: 0 0 48px;
    color: var(--settings-accent);
    font-size: 1.15rem;
    border: 1px solid #bfdbfe;
    border-radius: 14px;
    background: var(--settings-accent-soft);
}

.settings-panel-heading > div > span {
    display: block;
    margin-bottom: 2px;
    color: var(--settings-accent);
    font-size: .66rem;
    font-weight: 800;
    letter-spacing: .12em;
}

.settings-panel-heading h2 {
    margin: 0;
    color: var(--settings-text);
    font-size: 1.45rem;
    font-weight: 760;
    letter-spacing: -.025em;
}

.settings-panel-heading p {
    max-width: 600px;
    margin: 5px 0 0;
    color: var(--settings-muted);
    font-size: .84rem;
    line-height: 1.5;
}

.settings-section {
    display: grid;
    grid-template-columns: minmax(190px, .7fr) minmax(0, 1.3fr);
    gap: 30px;
    margin: 0;
    padding: 32px;
    border: 0;
    border-bottom: 1px solid var(--settings-border);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.settings-section-copy {
    min-width: 0;
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr);
    align-items: start;
    gap: 10px;
}

.settings-section-copy > span {
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    color: var(--settings-accent);
    font-size: .62rem;
    font-weight: 800;
    border: 1px solid #bfdbfe;
    border-radius: 8px;
    background: var(--settings-accent-soft);
}

.settings-section-copy h3 {
    margin: 2px 0 6px;
    color: var(--settings-text);
    font-size: .96rem;
    font-weight: 720;
    letter-spacing: -.01em;
}

.settings-section-copy p {
    display: -webkit-box;
    margin: 0;
    overflow: hidden;
    color: var(--settings-muted);
    font-size: .75rem;
    line-height: 1.55;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 5;
}

.settings-section-control {
    min-width: 0;
}

.format-options {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.format-card {
    appearance: none;
    position: relative;
    min-width: 0;
    min-height: 104px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-direction: column;
    gap: 12px;
    padding: 15px;
    color: var(--settings-text);
    text-align: start;
    border: 1px solid var(--settings-border);
    border-radius: 14px;
    background: var(--settings-surface);
    box-shadow: none;
}

.format-card:hover {
    border-color: var(--settings-border-strong);
    transform: translateY(-1px);
}

.settings-page .format-card.active {
    color: var(--settings-accent-dark) !important;
    border-color: var(--settings-accent) !important;
    background: var(--settings-accent-soft) !important;
    box-shadow: 0 0 0 1px var(--settings-accent);
}

.format-card-icon {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    color: var(--settings-accent);
    border-radius: 10px;
    background: var(--settings-accent-soft);
}

.format-card.active .format-card-icon {
    color: #fff;
    background: var(--settings-accent);
}

.format-card strong {
    font-size: .82rem;
    letter-spacing: .035em;
}

.format-card-check,
.theme-card-check {
    position: absolute;
    top: 12px;
    inset-inline-end: 12px;
    color: var(--settings-accent);
    visibility: hidden;
    opacity: 0;
}

.format-card.active .format-card-check,
.theme-card.active .theme-card-check {
    visibility: visible;
    opacity: 1;
}

.settings-page .format-card.active .format-card-check {
    color: var(--settings-accent) !important;
}

.quality-options {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    overflow: hidden;
    border: 1px solid var(--settings-border);
    border-radius: 12px;
}

.quality-btn {
    appearance: none;
    min-width: 0;
    min-height: 46px;
    padding: 8px 5px;
    color: var(--settings-muted);
    font-size: .76rem;
    font-weight: 760;
    border: 0;
    border-inline-end: 1px solid var(--settings-border);
    border-radius: 0;
    background: var(--settings-surface);
}

.quality-btn:last-child {
    border-inline-end: 0;
}

.quality-btn:hover {
    color: var(--settings-text);
    background: var(--settings-surface-soft);
}

.settings-page .quality-btn.active {
    color: #fff !important;
    border-color: var(--settings-accent) !important;
    background: var(--settings-accent) !important;
}

.settings-field-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.settings-field {
    min-width: 0;
    display: grid;
    gap: 8px;
    color: var(--settings-text);
}

.settings-field > span:first-child {
    font-size: .76rem;
    font-weight: 670;
}

.settings-field--full {
    width: 100%;
}

.settings-panel .form-select {
    min-height: 48px;
    padding-inline: 13px 36px;
    color: var(--settings-text);
    font-size: .86rem;
    border: 1px solid var(--settings-border);
    border-radius: 11px;
    background-color: var(--settings-surface-soft);
    box-shadow: none;
}

.settings-panel .form-select:hover {
    border-color: var(--settings-border-strong);
}

.settings-panel .form-select:focus {
    border-color: var(--settings-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}

.settings-toggle-row {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 15px 17px;
    cursor: pointer;
    border: 1px solid #bfdbfe;
    border-radius: 14px;
    background: var(--settings-accent-soft);
}

.settings-toggle-copy {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.settings-toggle-copy > i {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    flex: 0 0 38px;
    color: var(--settings-accent);
    border-radius: 11px;
    background: var(--settings-surface);
}

.settings-toggle-copy strong,
.settings-toggle-copy small {
    display: block;
}

.settings-toggle-copy strong {
    color: var(--settings-text);
    font-size: .82rem;
    line-height: 1.4;
}

.settings-toggle-copy small {
    margin-top: 3px;
    color: var(--settings-muted);
    font-size: .7rem;
}

.settings-toggle-row .form-check {
    flex: 0 0 auto;
    margin: 0;
    padding: 0;
}

.settings-toggle-row .form-check-input {
    width: 2.65rem;
    height: 1.4rem;
    float: none;
    margin: 0;
    cursor: pointer;
    border-color: var(--settings-border-strong);
    box-shadow: none;
}

.settings-toggle-row .form-check-input:checked {
    border-color: var(--settings-accent);
    background-color: var(--settings-accent);
}

.theme-options {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.theme-card {
    appearance: none;
    position: relative;
    min-width: 0;
    min-height: 112px;
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    color: var(--settings-muted);
    text-align: start;
    border: 1px solid var(--settings-border);
    border-radius: 14px;
    background: var(--settings-surface);
}

.theme-card > i:first-child {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    color: var(--settings-text);
    border-radius: 10px;
    background: var(--settings-surface-soft);
}

.theme-card span {
    overflow: hidden;
    font-size: .72rem;
    font-weight: 650;
    line-height: 1.42;
}

.theme-card:hover {
    border-color: var(--settings-border-strong);
}

.settings-page .theme-card.active {
    color: var(--settings-accent-dark);
    border-color: var(--settings-accent);
    background: var(--settings-accent-soft);
    box-shadow: 0 0 0 1px var(--settings-accent);
}

.theme-card.active > i:first-child {
    color: #fff;
    background: var(--settings-accent);
}

.settings-actions {
    position: static;
    z-index: 5;
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 15px 32px;
    border-top: 1px solid var(--settings-border);
    background: color-mix(in srgb, var(--settings-surface) 92%, transparent);
    backdrop-filter: blur(14px);
}

.settings-action-secondary,
.settings-save {
    min-height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 10px 17px;
    font-size: .82rem;
    font-weight: 720;
    text-decoration: none;
    border-radius: 11px;
}

.settings-action-secondary {
    color: var(--settings-text);
    border: 1px solid var(--settings-border);
    background: var(--settings-surface);
}

.settings-action-secondary:hover {
    color: var(--settings-text);
    border-color: var(--settings-border-strong);
}

.settings-save {
    color: #fff;
    border: 1px solid var(--settings-accent);
    background: var(--settings-accent);
    box-shadow: 0 8px 18px rgba(37, 99, 235, .2);
}

.settings-save:hover {
    color: #fff;
    border-color: var(--settings-accent-dark);
    background: var(--settings-accent-dark);
    transform: translateY(-1px);
}

.settings-heading-back,
.settings-nav-item,
.format-card,
.quality-btn,
.theme-card,
.settings-action-secondary,
.settings-save {
    transition:
        color .16s ease,
        background-color .16s ease,
        border-color .16s ease,
        box-shadow .16s ease,
        transform .16s ease;
}

.settings-page button:focus-visible,
.settings-page a:focus-visible,
.settings-page select:focus-visible,
.settings-page input:focus-visible {
    outline: 3px solid rgba(37, 99, 235, .25);
    outline-offset: 2px;
}

[data-bs-theme="dark"] .settings-page {
    --settings-accent-soft: #17233a;
    --settings-border: #303743;
    --settings-border-strong: #4b5565;
    --settings-surface: #15181d;
    --settings-surface-soft: #111318;
}

[data-bs-theme="dark"] .settings-success {
    color: #6ce9a6;
    border-color: #085d3a;
    background: #053321;
}

[data-bs-theme="dark"] .settings-panel-heading {
    background:
        radial-gradient(circle at 92% 8%, rgba(59, 130, 246, .15), transparent 34%),
        linear-gradient(135deg, #111318, #15181d);
}

[data-bs-theme="dark"] .settings-nav-item.active,
[data-bs-theme="dark"] .format-card.active,
[data-bs-theme="dark"] .theme-card.active,
[data-bs-theme="dark"] .settings-toggle-row {
    border-color: #315b9d;
}

[data-bs-theme="dark"] .settings-actions {
    background: rgba(21, 24, 29, .92);
}

@media (max-width: 991.98px) {
    .settings-page {
        padding-top: 48px;
    }

    .settings-workspace {
        grid-template-columns: 1fr;
    }

    .settings-sidebar {
        position: static;
        min-height: 0;
        padding: 12px;
    }

    .settings-sidebar-mark,
    .settings-sidebar-summary,
    .settings-help-link {
        display: none;
    }

    .settings-nav {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        margin: 0;
    }

    .settings-nav-item {
        grid-template-columns: 32px minmax(0, 1fr);
    }

    .settings-nav-arrow {
        display: none;
    }
}

@media (max-width: 767.98px) {
    .settings-page {
        width: min(100% - 20px, 1120px);
        padding: 36px 0 64px;
    }

    .settings-page-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 18px;
        margin-bottom: 24px;
    }

    .settings-page-heading h1 {
        font-size: 2.35rem;
    }

    .settings-panel-heading {
        min-height: 112px;
        padding: 24px 20px;
    }

    .settings-panel-icon {
        width: 44px;
        height: 44px;
        flex-basis: 44px;
    }

    .settings-section {
        grid-template-columns: 1fr;
        gap: 18px;
        padding: 26px 20px;
    }

    .settings-section-copy p {
        -webkit-line-clamp: 3;
    }

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

    .quality-options {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .quality-btn:nth-child(3) {
        border-inline-end: 0;
    }

    .quality-btn:nth-child(-n + 3) {
        border-bottom: 1px solid var(--settings-border);
    }

    .settings-field-grid {
        grid-template-columns: 1fr;
    }

    .settings-actions {
        padding: 13px 20px;
    }
}

@media (max-width: 575.98px) {
    .settings-nav-item {
        display: flex;
        justify-content: center;
        gap: 8px;
        padding-inline: 8px;
    }

    .settings-nav-item > span:nth-child(2) {
        font-size: .74rem;
    }

    .settings-nav-icon {
        width: 28px;
        height: 28px;
        flex: 0 0 28px;
    }

    .theme-options {
        grid-template-columns: 1fr;
    }

    .theme-card {
        min-height: 68px;
        display: grid;
        grid-template-columns: 34px minmax(0, 1fr);
        align-items: center;
    }

    .settings-toggle-row {
        align-items: flex-start;
    }

    .settings-action-secondary {
        width: 46px;
        padding-inline: 0;
        font-size: 0;
    }

    .settings-action-secondary i {
        font-size: .9rem;
    }

    .settings-save {
        flex: 1;
    }
}

@media (prefers-reduced-motion: reduce) {
    .settings-heading-back,
    .settings-nav-item,
    .format-card,
    .quality-btn,
    .theme-card,
    .settings-action-secondary,
    .settings-save {
        transition: none !important;
    }
}