body.video-lab-page.video-lab-workbench-rail-enabled {
    --video-lab-workbench-rail-width: 60px;
    --video-lab-workbench-rail-gap: 1rem;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-shell {
    position: relative;
    min-height: calc(100dvh - var(--images-navbar-height));
    padding-left: calc(var(--video-lab-workbench-rail-width) + var(--video-lab-workbench-rail-gap));
    box-sizing: border-box;
    background: transparent;
    background-image:
        linear-gradient(180deg, rgba(5, 9, 16, 0.22), rgba(5, 9, 16, 0.22)),
        radial-gradient(circle at 18% 2%, rgba(168, 129, 240, 0.17), transparent 32%),
        radial-gradient(circle at 82% 14%, rgba(163, 129, 240, 0.10), transparent 28%),
        linear-gradient(180deg, rgba(10, 12, 26, 0.14), rgba(8, 10, 20, 0)),
        url('/static/site/vl/img/bg-dark.png?v=20260228-4');
    background-size: auto, auto, auto, auto, 780px;
    background-repeat: no-repeat, no-repeat, no-repeat, no-repeat, repeat;
    background-position: center;
}

/* Light theme: B&W фон — белая база + бледная текстура bg.jpeg; тёмный neon-слой
   выключается. dark/neon без изменений. */
[data-theme="light"] body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-shell {
    background-color: var(--color-bg-page);
    background-image:
        linear-gradient(color-mix(in srgb, white 92%, transparent), color-mix(in srgb, white 92%, transparent)),
        url('/static/img/bg.jpeg');
    background-size: auto, 780px;
    background-repeat: no-repeat, repeat;
}

body.video-lab-page.video-lab-project-page.video-lab-workbench-rail-enabled .video-lab-workbench-shell {
    padding-left: calc(var(--video-lab-workbench-rail-width) + var(--video-lab-workbench-rail-gap));
}

body.video-lab-page.video-lab-project-page.video-lab-workbench-rail-enabled .video-lab-workbench-shell.is-sidebar-collapsed {
    padding-left: calc(var(--video-lab-workbench-rail-width) + var(--video-lab-workbench-rail-gap));
}

html.video-lab-prefers-collapsed body.video-lab-page.video-lab-project-page.video-lab-workbench-rail-enabled .video-lab-workbench-shell {
    padding-left: calc(var(--video-lab-workbench-rail-width) + var(--video-lab-workbench-rail-gap));
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail {
    position: absolute;
    left: var(--images-sidebar-gap);
    top: var(--images-sidebar-gap);
    bottom: var(--images-sidebar-gap);
    width: var(--video-lab-workbench-rail-width);
    display: grid;
    grid-template-rows: 63px minmax(0, 1fr) 65px;
    border: 1px solid var(--color-border);
    border-radius: var(--images-panel-radius);
    background: var(--color-bg-card);
    box-shadow: var(--images-panel-shadow);
    z-index: 30;
}

body.video-lab-page.video-lab-project-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail {
    opacity: 1;
    pointer-events: auto;
    transform: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

body.video-lab-page.video-lab-project-page.video-lab-workbench-rail-enabled .video-lab-workbench-shell.is-sidebar-collapsed .video-lab-workbench-rail {
    opacity: 1;
    pointer-events: auto;
    transform: none;
}

html.video-lab-prefers-collapsed body.video-lab-page.video-lab-project-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail {
    opacity: 1;
    pointer-events: auto;
    transform: none;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-section {
    position: relative;
    padding: 0.5rem 0.56rem;
    min-height: 0;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-section--header,
body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-section--footer {
    display: flex;
    align-items: center;
    justify-content: center;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-section--body {
    display: flex;
    flex-direction: column;
    gap: 0.58rem;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-section--header::after,
body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-section--footer::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-border);
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-section--header::after {
    bottom: 0;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-section--footer::before {
    top: 0;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn {
    --video-lab-rail-accent: var(--color-brand-primary);
    --video-lab-rail-accent-soft: var(--color-brand-primary-15);
    --video-lab-rail-accent-border: var(--color-brand-primary-30);
    --video-lab-rail-accent-shadow: var(--color-brand-primary-20);
    position: relative;
    width: 100%;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
    border-radius: 13px;
    background: transparent;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
    text-decoration: none;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.85;
    stroke-linecap: round;
    stroke-linejoin: round;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-step-icon {
    width: 16px;
    height: 16px;
    fill: currentColor;
    stroke: none;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-step-icon use {
    fill: currentColor;
    stroke: none;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-icon--folder-collapsed {
    display: none;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-shell.is-sidebar-collapsed .video-lab-workbench-rail-icon--folder-open {
    display: none;
}

html.video-lab-prefers-collapsed body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-icon--folder-open {
    display: none;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-shell.is-sidebar-collapsed .video-lab-workbench-rail-icon--folder-collapsed {
    display: block;
}

html.video-lab-prefers-collapsed body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-icon--folder-collapsed {
    display: block;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn--filled-icon svg {
    fill: currentColor;
    stroke: none;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn--step.video-lab-workbench-rail-btn--filled-icon {
    line-height: 0;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-light);
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn.is-disabled {
    opacity: 0.46;
    cursor: default;
    pointer-events: none;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn.is-disabled:hover {
    color: var(--color-text-secondary);
    background: transparent;
    border-color: transparent;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn.is-active {
    color: var(--video-lab-rail-accent);
    background: var(--video-lab-rail-accent-soft);
    border-color: var(--video-lab-rail-accent-border);
    box-shadow: inset 0 0 0 1px var(--video-lab-rail-accent-shadow);
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn.is-active::before {
    content: "";
    position: absolute;
    left: -0.58rem;
    top: 3px;
    bottom: 3px;
    width: 2px;
    border-radius: 999px;
    background: var(--video-lab-rail-accent);
    box-shadow: 0 0 0 1px var(--video-lab-rail-accent-shadow);
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn--categories.is-active::before {
    display: none;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn--ghost span {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.04em;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn--step span {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.04em;
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn--step.is-completed {
    --video-lab-rail-accent: var(--color-success);
    --video-lab-rail-accent-soft: color-mix(in srgb, var(--color-success) 15%, transparent);
    --video-lab-rail-accent-border: color-mix(in srgb, var(--color-success) 30%, transparent);
    --video-lab-rail-accent-shadow: color-mix(in srgb, var(--color-success) 20%, transparent);
    color: var(--color-success);
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn--step.is-running {
    --video-lab-rail-accent: var(--color-info);
    --video-lab-rail-accent-soft: color-mix(in srgb, var(--color-info) 15%, transparent);
    --video-lab-rail-accent-border: color-mix(in srgb, var(--color-info) 32%, transparent);
    --video-lab-rail-accent-shadow: color-mix(in srgb, var(--color-info) 20%, transparent);
    color: var(--color-info);
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn--step.is-awaiting_confirmation {
    --video-lab-rail-accent: var(--color-warning);
    --video-lab-rail-accent-soft: color-mix(in srgb, var(--color-warning) 15%, transparent);
    --video-lab-rail-accent-border: color-mix(in srgb, var(--color-warning) 32%, transparent);
    --video-lab-rail-accent-shadow: color-mix(in srgb, var(--color-warning) 20%, transparent);
    color: var(--color-warning);
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn--step.is-failed {
    --video-lab-rail-accent: var(--color-error);
    --video-lab-rail-accent-soft: color-mix(in srgb, var(--color-error) 15%, transparent);
    --video-lab-rail-accent-border: color-mix(in srgb, var(--color-error) 32%, transparent);
    --video-lab-rail-accent-shadow: color-mix(in srgb, var(--color-error) 20%, transparent);
    color: var(--color-error);
}

body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn--step.is-failed.is-active,
body.video-lab-page.video-lab-workbench-rail-enabled .video-lab-workbench-rail-btn--step.is-failed.is-active:hover {
    color: var(--color-error);
    background: var(--video-lab-rail-accent-soft);
    border-color: var(--video-lab-rail-accent-border);
    box-shadow: inset 0 0 0 1px var(--video-lab-rail-accent-shadow);
}