/* =======================================
   SETTINGS PAGE
   ======================================= */
.settings-page {
    max-width: 720px;
    margin: 0 auto;
}

.settings-page__header {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.settings-back-btn {
    align-self: flex-start;
}

.settings-page__title {
    font-size: var(--text-2xl);
    font-weight: 700;
}

/* ---- Tabs ---- */
.settings-tabs {
    display: flex;
    gap: var(--space-xs);
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: var(--space-xl);
}

.settings-tab {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    margin-bottom: -1px;
    cursor: pointer;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
}

.settings-tab:hover {
    color: var(--text-primary);
}

.settings-tab--active {
    color: var(--brand-purple);
    border-bottom-color: var(--brand-purple);
}

/* ---- Sections ---- */
.settings-section {
    margin-bottom: var(--space-xl);
}

.settings-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.settings-section__title {
    font-size: var(--text-lg);
    font-weight: 600;
}

.settings-section__desc {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

/* ---- Settings Rows ---- */
.settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border-subtle);
}

.settings-row:last-child {
    border-bottom: none;
}

.settings-row__info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 0;
}

.settings-row__label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.settings-row__desc {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

.settings-row__control {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

/* ---- Toggle Switch ---- */
.toggle {
    position: relative;
    width: 44px;
    height: 24px;
    cursor: pointer;
}

.toggle__input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle__slider {
    position: absolute;
    inset: 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.toggle__slider::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    background: var(--text-secondary);
    transition: all var(--transition-fast);
}

.toggle__input:checked + .toggle__slider {
    background: var(--brand-purple);
    border-color: var(--brand-purple);
}

.toggle__input:checked + .toggle__slider::before {
    transform: translateX(20px);
    background: white;
}

.toggle__input:focus-visible + .toggle__slider {
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

/* ---- Settings List Items ---- */
.settings-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--border-subtle);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.settings-list__item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md);
    background: var(--bg-secondary);
    gap: var(--space-md);
}

.settings-list__item-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
    flex: 1;
}

.settings-list__item-name {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.settings-list__item-detail {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.settings-list__item-actions {
    display: flex;
    gap: var(--space-xs);
    flex-shrink: 0;
}

/* ---- Settings Empty State ---- */
.settings-empty {
    padding: var(--space-xl);
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--text-sm);
    background: var(--bg-secondary);
    border: 1px dashed var(--border-subtle);
    border-radius: var(--radius-md);
}

/* ---- Export/Render Settings ---- */
.render-presets {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-md);
}

.render-preset {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.render-preset:hover {
    border-color: var(--border-default);
}

.render-preset--active {
    border-color: var(--brand-purple);
    background: rgba(139, 92, 246, 0.05);
}

.render-preset__name {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.render-preset__specs {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    font-family: var(--font-mono);
}

.render-preset__desc {
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

/* ---- Storage Usage ---- */
.storage-usage {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.storage-usage__bar {
    width: 100%;
    height: 10px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    display: flex;
}

.storage-usage__segment {
    height: 100%;
    transition: width var(--transition-base);
}

.storage-usage__segment--video {
    background: var(--brand-purple);
}

.storage-usage__segment--audio {
    background: var(--brand-cyan);
}

.storage-usage__segment--images {
    background: var(--brand-magenta);
}

.storage-usage__segment--other {
    background: var(--text-tertiary);
}

.storage-usage__legend {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.storage-usage__legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

.storage-usage__legend-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.storage-usage__total {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--text-sm);
}

.storage-usage__used {
    font-weight: 600;
    color: var(--text-primary);
}

.storage-usage__limit {
    color: var(--text-tertiary);
}

/* ---- Responsive ---- */
@media (max-width: 640px) {
    .settings-row {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }

    .settings-row__control {
        align-self: flex-end;
    }

    .render-presets {
        grid-template-columns: 1fr;
    }
}