* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--c-background);
    color: var(--c-font);
    min-height: 100dvh;
    -webkit-font-smoothing: antialiased;
}

.page-header {
    background: var(--c-block);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--c-border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.back-btn {
    background: transparent;
    border: none;
    color: var(--c-primary);
    font-size: 24px;
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    flex-shrink: 0;
}

.back-btn:hover {
    background: var(--c-border);
}

.page-header h1 {
    font-size: 17px;
    font-weight: 600;
    flex: 1;
}

.page-content {
    max-width: 600px;
    margin: 0 auto;
    padding: 16px;
}

.config-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.config-group-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--c-font-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 16px 16px 8px;
}

.config-item {
    background: var(--c-block);
    border: 1px solid var(--c-border);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.config-item-info {
    flex: 1;
    min-width: 0;
}

.config-item-label {
    font-size: 15px;
    font-weight: 500;
    color: var(--c-font);
    margin-bottom: 4px;
}

.config-item-desc {
    font-size: 13px;
    color: var(--c-font-secondary);
    line-height: 1.5;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 28px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--c-border);
    border-radius: 28px;
    transition: background 0.2s;
}

.toggle-slider::before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: transform 0.2s;
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--c-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: color-mix(in srgb, var(--c-background) 85%, transparent);
    color: white;
    padding: 12px 24px;
    border-radius: 24px;
    font-size: 14px;
    z-index: 1000;
    display: none;
}

.toast.show {
    display: block;
}