.tool-tutorial {
    --tutorial-accent: var(--accent-primary, #168cf0);
    --tutorial-accent-2: var(--accent-secondary, #00d4aa);
    position: relative;
    isolation: isolate;
    margin: 54px 0 10px;
    padding: 34px;
    overflow: hidden;
    scroll-margin-top: 96px;
    border: 1px solid color-mix(in srgb, var(--tutorial-accent) 22%, transparent);
    border-radius: 28px;
    background:
        radial-gradient(circle at 52% 0%, color-mix(in srgb, var(--tutorial-accent) 18%, transparent), transparent 34%),
        linear-gradient(145deg, color-mix(in srgb, var(--bg-card, #fff) 95%, transparent), color-mix(in srgb, var(--tutorial-accent-2) 5%, var(--bg-card, #fff)));
    box-shadow: 0 24px 70px color-mix(in srgb, var(--tutorial-accent) 12%, transparent);
}

.tool-tutorial::before {
    content: '';
    position: absolute;
    z-index: -1;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(115deg, color-mix(in srgb, var(--tutorial-accent) 8%, transparent), transparent 42%, color-mix(in srgb, var(--tutorial-accent-2) 7%, transparent));
}

.tool-tutorial[data-tool="hapkit"] {
    --tutorial-accent: #168cf0;
    --tutorial-accent-2: #00bfa5;
}

.tool-tutorial-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 28px;
    margin-bottom: 22px;
}

.tool-tutorial-heading-copy {
    min-width: 0;
}

.tool-tutorial-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 13px;
    padding: 7px 13px;
    border: 1px solid color-mix(in srgb, var(--tutorial-accent) 30%, transparent);
    border-radius: 999px;
    color: var(--tutorial-accent);
    background: color-mix(in srgb, var(--tutorial-accent) 9%, transparent);
    font-size: 13px;
    font-weight: 800;
}

.tool-tutorial-heading h2 {
    margin: 0 0 10px;
    color: var(--text-primary, #172033);
    font-size: clamp(26px, 4vw, 40px);
    line-height: 1.18;
    letter-spacing: -0.025em;
}

.tool-tutorial-heading p {
    max-width: 720px;
    margin: 0;
    color: var(--text-secondary, #667085);
    font-size: 15px;
    line-height: 1.8;
}

.tool-tutorial-heading-actions {
    display: flex;
    flex: 0 0 auto;
    gap: 12px;
}

.tool-tutorial-action {
    min-height: 48px;
    padding: 0 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    border: 1px solid color-mix(in srgb, var(--tutorial-accent) 28%, transparent);
    border-radius: 12px;
    color: var(--tutorial-accent);
    background: color-mix(in srgb, var(--tutorial-accent) 7%, var(--bg-card, #fff));
    font-size: 14px;
    font-weight: 800;
    text-decoration: none;
    white-space: nowrap;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.tool-tutorial-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 26px color-mix(in srgb, var(--tutorial-accent) 16%, transparent);
}

.tool-tutorial-action.primary {
    border-color: transparent;
    color: #fff;
    background: linear-gradient(135deg, #ffad00, #ff8700);
    box-shadow: 0 10px 28px rgba(255, 143, 0, .24);
}

.tool-tutorial-prerequisite {
    margin-bottom: 20px;
    padding: 16px 18px;
    display: grid;
    grid-template-columns: 40px minmax(0, 1fr) auto;
    align-items: center;
    gap: 13px;
    border: 1px solid rgba(255, 170, 0, .32);
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(255, 170, 0, .1), color-mix(in srgb, var(--tutorial-accent) 5%, transparent));
}

.tool-tutorial-prerequisite > i {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    color: #ff9700;
    background: rgba(255, 170, 0, .16);
}

.tool-tutorial-prerequisite strong,
.tool-tutorial-prerequisite span {
    display: block;
}

.tool-tutorial-prerequisite strong {
    margin-bottom: 3px;
    color: var(--text-primary, #172033);
    font-size: 14px;
}

.tool-tutorial-prerequisite span {
    color: var(--text-secondary, #667085);
    font-size: 13px;
    line-height: 1.55;
}

.tool-tutorial-prerequisite-badge {
    padding: 7px 11px;
    border-radius: 999px;
    color: var(--tutorial-accent) !important;
    background: color-mix(in srgb, var(--tutorial-accent) 10%, transparent);
    font-size: 12px !important;
    font-weight: 800;
    white-space: nowrap;
}

.tool-tutorial-shell {
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--tutorial-accent) 17%, transparent);
    border-radius: 22px;
    background: var(--bg-card, #fff);
    box-shadow: 0 20px 60px rgba(26, 42, 68, .08);
}

.tool-tutorial-tabs {
    display: grid;
    grid-template-columns: repeat(var(--tutorial-tab-count, 2), minmax(0, 1fr));
    gap: 8px;
    padding: 10px;
    border-bottom: 1px solid color-mix(in srgb, var(--tutorial-accent) 15%, transparent);
    background: color-mix(in srgb, var(--tutorial-accent) 3%, var(--bg-card, #fff));
}

.tool-tutorial-tab {
    min-width: 0;
    min-height: 58px;
    padding: 9px 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 11px;
    border: 1px solid transparent;
    border-radius: 14px;
    color: var(--text-secondary, #667085);
    background: transparent;
    cursor: pointer;
    font: inherit;
    transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.tool-tutorial-tab > i {
    color: currentColor;
    font-size: 18px;
}

.tool-tutorial-tab strong,
.tool-tutorial-tab small {
    display: block;
    text-align: left;
}

.tool-tutorial-tab strong {
    color: var(--text-primary, #172033);
    font-size: 14px;
}

.tool-tutorial-tab small {
    margin-top: 2px;
    color: var(--text-muted, #8b97a8);
    font-size: 11px;
}

.tool-tutorial-tab.is-active {
    border-color: color-mix(in srgb, var(--tutorial-accent) 45%, transparent);
    color: var(--tutorial-accent);
    background: linear-gradient(135deg, color-mix(in srgb, var(--tutorial-accent) 15%, transparent), color-mix(in srgb, var(--tutorial-accent-2) 11%, transparent));
}

.tool-tutorial-panel[hidden],
.tool-tutorial-slide[hidden] {
    display: none !important;
}

.tool-tutorial-stepper-wrap {
    overflow-x: auto;
    scrollbar-width: thin;
    border-bottom: 1px solid color-mix(in srgb, var(--tutorial-accent) 12%, transparent);
}

.tool-tutorial-stepper {
    min-width: max(660px, 100%);
    margin: 0;
    padding: 18px 20px;
    display: grid;
    grid-template-columns: repeat(var(--step-count), minmax(72px, 1fr));
    gap: 7px;
    list-style: none;
}

.tool-tutorial-step-button {
    width: 100%;
    min-width: 0;
    padding: 0;
    display: grid;
    justify-items: center;
    gap: 7px;
    border: 0;
    color: var(--text-muted, #8b97a8);
    background: transparent;
    cursor: pointer;
    font: inherit;
}

.tool-tutorial-step-number {
    width: 26px;
    height: 26px;
    display: grid;
    place-items: center;
    border: 1px solid color-mix(in srgb, var(--tutorial-accent) 28%, transparent);
    border-radius: 50%;
    color: var(--text-secondary, #667085);
    background: var(--bg-card, #fff);
    font-size: 12px;
    font-weight: 900;
}

.tool-tutorial-step-label {
    max-width: 92px;
    overflow: hidden;
    color: currentColor;
    font-size: 11px;
    font-weight: 700;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tool-tutorial-step-button.is-active {
    color: var(--tutorial-accent);
}

.tool-tutorial-step-button.is-active .tool-tutorial-step-number {
    border-color: var(--tutorial-accent);
    color: #fff;
    background: linear-gradient(135deg, var(--tutorial-accent), #2b6cff);
    box-shadow: 0 7px 18px color-mix(in srgb, var(--tutorial-accent) 28%, transparent);
}

.tool-tutorial-slide {
    padding: 24px;
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, .75fr);
    gap: 26px;
    align-items: center;
}

.tool-tutorial-stage {
    position: relative;
    min-height: 340px;
    padding: 52px 28px 28px;
    display: grid;
    place-items: center;
    overflow: hidden;
    border-radius: 20px;
    background:
        radial-gradient(circle at 75% 80%, rgba(0, 212, 170, .18), transparent 35%),
        linear-gradient(145deg, #061a31, #07131f 58%, #06222a);
    box-shadow: inset 0 0 0 1px rgba(122, 193, 255, .12);
}

.tool-tutorial-stage::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
    background-size: 24px 24px;
    mask-image: linear-gradient(to bottom, #000, transparent 92%);
}

.tool-tutorial-stage-label {
    position: absolute;
    z-index: 2;
    top: 14px;
    left: 16px;
    padding: 6px 10px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 999px;
    color: #9fb3ca;
    background: rgba(4, 14, 27, .62);
    font-size: 10px;
}

.tool-tutorial-window {
    position: relative;
    z-index: 1;
    width: min(100%, 560px);
    overflow: hidden;
    border: 1px solid rgba(154, 201, 255, .2);
    border-radius: 16px;
    background: #f4f8ff;
    box-shadow: 0 25px 50px rgba(0, 0, 0, .28);
}

.tool-tutorial-window-bar {
    height: 38px;
    padding: 0 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #91a3bb;
    background: #243143;
    font-size: 10px;
}

.tool-tutorial-window-dots {
    display: flex;
    gap: 5px;
}

.tool-tutorial-window-dots i {
    width: 7px;
    height: 7px;
    display: block;
    border-radius: 50%;
    background: #ff6a67;
}

.tool-tutorial-window-dots i:nth-child(2) { background: #ffc258; }
.tool-tutorial-window-dots i:nth-child(3) { background: #4bd78c; }

.tool-tutorial-window-address {
    min-width: 0;
    padding: 5px 10px;
    overflow: hidden;
    border-radius: 8px;
    color: #aebdd0;
    background: rgba(255,255,255,.07);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tool-tutorial-window-body {
    min-height: 236px;
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
}

.tool-tutorial-sidebar {
    padding: 16px 10px;
    color: #8191a5;
    background: #e8f0fb;
}

.tool-tutorial-brand {
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 7px;
    color: #172033;
    font-size: 10px;
    font-weight: 900;
}

.tool-tutorial-brand i {
    width: 24px;
    height: 24px;
    display: grid;
    place-items: center;
    border-radius: 7px;
    color: #fff;
    background: linear-gradient(135deg, var(--tutorial-accent), var(--tutorial-accent-2));
    font-style: normal;
}

.tool-tutorial-menu-item {
    margin-bottom: 7px;
    padding: 7px 8px;
    display: flex;
    align-items: center;
    gap: 6px;
    border-radius: 8px;
    font-size: 8px;
}

.tool-tutorial-menu-item.is-active {
    color: var(--tutorial-accent);
    background: rgba(22, 140, 240, .12);
    font-weight: 800;
}

.tool-tutorial-window-main {
    min-width: 0;
    padding: 18px;
    color: #172033;
    background: #f8fbff;
}

.tool-tutorial-window-title {
    margin-bottom: 13px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-size: 11px;
    font-weight: 900;
}

.tool-tutorial-status {
    padding: 4px 7px;
    border-radius: 999px;
    color: #0f8c75;
    background: rgba(0, 191, 165, .12);
    font-size: 7px;
    white-space: nowrap;
}

.tool-tutorial-window[data-tone="warning"] .tool-tutorial-status {
    color: #b06b00;
    background: rgba(255, 170, 0, .15);
}

.tool-tutorial-scene-card {
    margin-bottom: 11px;
    padding: 13px;
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 10px;
    border: 1px solid rgba(22, 140, 240, .18);
    border-radius: 12px;
    background: #fff;
}

.tool-tutorial-scene-icon {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    color: var(--tutorial-accent);
    background: rgba(22, 140, 240, .1);
    font-size: 14px;
}

.tool-tutorial-scene-card > div > strong,
.tool-tutorial-scene-card > div > span {
    display: block;
}

.tool-tutorial-scene-card > div > strong {
    margin: 1px 0 3px;
    font-size: 9px;
}

.tool-tutorial-scene-card > div > span {
    color: #75859a;
    font-size: 7px;
    line-height: 1.45;
}

.tool-tutorial-checks {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 7px;
}

.tool-tutorial-check {
    min-width: 0;
    padding: 7px 8px;
    overflow: hidden;
    border-radius: 8px;
    color: #5f7086;
    background: #edf3fa;
    font-size: 7px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tool-tutorial-check i {
    margin-right: 4px;
    color: #13ae8e;
}

.tool-tutorial-window[data-tone="warning"] .tool-tutorial-check.is-current i {
    color: #ff9700;
}

.tool-tutorial-mock-action {
    margin-top: 11px;
    padding: 8px 11px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 8px;
    color: #fff;
    background: linear-gradient(135deg, var(--tutorial-accent), #2f6cff);
    font-size: 8px;
    font-weight: 900;
    box-shadow: 0 6px 16px rgba(22, 140, 240, .2);
}

/* HapKit's real entry point is a conversation workspace. Keep the preview
 * compact, but use the same navigation, timeline and user-action vocabulary
 * as the desktop client. */
.tool-tutorial[data-tool="hapkit"] .tool-tutorial-window-body {
    grid-template-columns: 126px minmax(0, 1fr);
}

.tool-tutorial[data-tool="hapkit"] .tool-tutorial-menu-item {
    font-size: 7.5px;
}

.tool-tutorial[data-tool="hapkit"] .tool-tutorial-menu-item.is-section {
    margin-top: 4px;
    color: #7f8fa3;
    background: transparent;
    font-weight: 700;
}

.tool-tutorial-chat-preview {
    min-width: 0;
    display: grid;
    gap: 6px;
    color: #34455b;
    font-size: 8px;
}

.tool-tutorial-chat-empty {
    min-height: 82px;
    padding: 8px 7px 6px;
    display: grid;
    justify-items: center;
    align-content: center;
    gap: 4px;
    text-align: center;
}

.tool-tutorial-chat-logo {
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    color: #fff;
    background: linear-gradient(135deg, var(--tutorial-accent), var(--tutorial-accent-2));
    font-size: 8px;
    font-weight: 900;
}

.tool-tutorial-chat-empty strong {
    color: #172033;
    font-size: 10px;
}

.tool-tutorial-chat-empty small {
    max-width: 260px;
    color: #75859a;
    font-size: 7px;
    line-height: 1.45;
}

.tool-tutorial-chat-head {
    display: flex;
    align-items: baseline;
    gap: 6px;
    padding: 1px 2px 2px;
}

.tool-tutorial-chat-head strong {
    color: #172033;
    font-size: 8px;
}

.tool-tutorial-chat-head span {
    color: #8392a5;
    font-size: 6.5px;
}

.tool-tutorial-chat-bubble {
    max-width: 92%;
    padding: 6px 7px;
    border-radius: 8px;
    font-size: 7.5px;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.tool-tutorial-chat-bubble.is-user {
    justify-self: end;
    color: #12385d;
    background: #dcecff;
}

.tool-tutorial-chat-bubble.is-assistant {
    justify-self: start;
    color: #34455b;
    background: #eef3f8;
}

.tool-tutorial-chat-activity,
.tool-tutorial-chat-tool {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 2px 4px;
    color: #6f8095;
    line-height: 1.35;
}

.tool-tutorial-chat-activity i {
    color: #12a884;
    font-size: 7px;
}

.tool-tutorial-chat-tool {
    margin-left: 8px;
    border-left: 2px solid #d8e1ec;
}

.tool-tutorial-chat-tool i {
    color: #70849a;
    font-size: 7px;
}

.tool-tutorial-chat-tool code {
    min-width: 0;
    overflow-wrap: anywhere;
    color: #52667d;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 6.8px;
}

.tool-tutorial-user-action {
    padding: 7px;
    display: grid;
    gap: 5px;
    border: 1px solid #e0b662;
    border-radius: 7px;
    color: #6b4b14;
    background: #fff8e8;
    line-height: 1.4;
}

.tool-tutorial-user-action-title {
    display: flex;
    align-items: center;
    gap: 5px;
    color: #7a520d;
    font-size: 8px;
}

.tool-tutorial-user-action-title i {
    font-size: 8px;
}

.tool-tutorial-action-input {
    padding: 5px 6px;
    border: 1px solid #d7c79d;
    border-radius: 5px;
    color: #9a8b67;
    background: #fff;
    font-size: 7px;
}

.tool-tutorial-user-action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.tool-tutorial-user-action-buttons em {
    padding: 4px 6px;
    border-radius: 5px;
    color: #fff;
    background: #168cf0;
    font-size: 6.8px;
    font-style: normal;
    font-weight: 800;
}

.tool-tutorial-user-action-buttons em + em {
    color: #48709a;
    background: #e9f2fb;
}

.tool-tutorial-chat-composer {
    margin-top: 2px;
    padding: 5px;
    display: grid;
    gap: 4px;
    border: 1px solid #d9e3ef;
    border-radius: 7px;
    background: #fff;
}

.tool-tutorial-chat-chip,
.tool-tutorial-chat-suggestion {
    max-width: 100%;
    padding: 3px 5px;
    overflow-wrap: anywhere;
    border-radius: 5px;
    color: #55718d;
    background: #edf4fb;
    font-size: 6.8px;
}

.tool-tutorial-chat-chip i {
    margin-right: 3px;
}

.tool-tutorial-chat-suggestion {
    color: #2477b8;
    background: #eff8ff;
}

.tool-tutorial-chat-input {
    min-width: 0;
    min-height: 20px;
    display: flex;
    align-items: center;
    gap: 5px;
    color: #8595a9;
    font-size: 7px;
}

.tool-tutorial-chat-input > span {
    min-width: 0;
    flex: 1;
    overflow-wrap: anywhere;
}

.tool-tutorial-chat-input > i:first-child {
    color: #57718d;
}

.tool-tutorial-chat-input > i:last-child {
    width: 18px;
    height: 18px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: #168cf0;
    font-size: 7px;
}

.tool-tutorial-chat-input b,
.tool-tutorial-chat-input small {
    max-width: 54px;
    overflow: hidden;
    color: #70849a;
    font-size: 6px;
    font-weight: 700;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tool-tutorial-management-preview {
    display: grid;
    gap: 5px;
    color: #52667d;
    font-size: 7px;
}

.tool-tutorial-management-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    color: #172033;
    font-size: 9px;
}

.tool-tutorial-management-heading span {
    padding: 3px 5px;
    border-radius: 5px;
    color: #2477b8;
    background: #edf5ff;
    font-size: 6.5px;
}

.tool-tutorial-management-subtitle {
    color: #7b8da1;
    line-height: 1.4;
}

.tool-tutorial-management-grid {
    display: grid;
    gap: 5px;
}

.tool-tutorial-management-grid > div {
    min-width: 0;
    padding: 6px;
    display: grid;
    grid-template-columns: 15px minmax(0, 1fr);
    column-gap: 5px;
    row-gap: 2px;
    border: 1px solid #dbe5f0;
    border-radius: 6px;
    background: #fff;
}

.tool-tutorial-management-grid i {
    grid-row: span 2;
    color: #168cf0;
    font-size: 9px;
}

.tool-tutorial-management-grid strong {
    color: #34455b;
    font-size: 7px;
}

.tool-tutorial-management-grid span,
.tool-tutorial-management-grid em {
    min-width: 0;
    overflow-wrap: anywhere;
    color: #8191a5;
    font-size: 6.3px;
    font-style: normal;
}

.tool-tutorial-management-grid em {
    grid-column: 2;
    color: #2477b8;
}

.tool-tutorial-window[data-tone="success"] .tool-tutorial-mock-action {
    background: linear-gradient(135deg, #12b893, #00a37e);
}

.tool-tutorial-copy {
    min-width: 0;
    padding: 8px 2px;
}

.tool-tutorial-copy-step {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 13px;
    padding: 6px 10px;
    border-radius: 999px;
    color: var(--tutorial-accent);
    background: color-mix(in srgb, var(--tutorial-accent) 9%, transparent);
    font-size: 12px;
    font-weight: 800;
}

.tool-tutorial-copy h3 {
    margin: 0 0 12px;
    color: var(--text-primary, #172033);
    font-size: clamp(22px, 3vw, 30px);
    line-height: 1.25;
}

.tool-tutorial-copy > p {
    margin: 0 0 14px;
    color: var(--text-secondary, #667085);
    font-size: 14px;
    line-height: 1.8;
}

.tool-tutorial-copy ul {
    margin: 0;
    padding: 0;
    display: grid;
    gap: 8px;
    list-style: none;
}

.tool-tutorial-copy li {
    position: relative;
    padding-left: 21px;
    color: var(--text-secondary, #667085);
    font-size: 13px;
    line-height: 1.55;
}

.tool-tutorial-copy li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--tutorial-accent);
    font-weight: 900;
}

.tool-tutorial-tip {
    margin-top: 15px;
    padding: 11px 12px;
    display: flex;
    align-items: flex-start;
    gap: 9px;
    border-radius: 11px;
    color: var(--text-secondary, #667085);
    background: color-mix(in srgb, var(--tutorial-accent-2) 8%, transparent);
    font-size: 12px;
    line-height: 1.55;
}

.tool-tutorial-tip i {
    margin-top: 2px;
    color: var(--tutorial-accent-2);
}

.tool-tutorial-controls {
    padding: 16px 20px 20px;
    display: grid;
    grid-template-columns: auto minmax(160px, 1fr) auto;
    align-items: center;
    gap: 18px;
    border-top: 1px solid color-mix(in srgb, var(--tutorial-accent) 12%, transparent);
}

.tool-tutorial-control {
    min-height: 42px;
    padding: 0 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border: 1px solid color-mix(in srgb, var(--tutorial-accent) 24%, transparent);
    border-radius: 10px;
    color: var(--text-primary, #172033);
    background: var(--bg-card, #fff);
    cursor: pointer;
    font: inherit;
    font-size: 13px;
    font-weight: 800;
}

.tool-tutorial-control.next {
    border-color: transparent;
    color: #fff;
    background: linear-gradient(135deg, var(--tutorial-accent), #2f6cff);
}

.tool-tutorial-control:disabled {
    opacity: .38;
    cursor: not-allowed;
}

.tool-tutorial-progress {
    min-width: 0;
    display: grid;
    gap: 7px;
}

.tool-tutorial-progress-text {
    color: var(--text-muted, #8b97a8);
    font-size: 11px;
    font-weight: 800;
    text-align: center;
}

.tool-tutorial-progress-track {
    height: 6px;
    overflow: hidden;
    border-radius: 999px;
    background: color-mix(in srgb, var(--tutorial-accent) 10%, transparent);
}

.tool-tutorial-progress-value {
    width: var(--progress, 10%);
    height: 100%;
    display: block;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--tutorial-accent), var(--tutorial-accent-2));
    transition: width .25s ease;
}

.tool-tutorial-help-title {
    margin: 28px 0 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary, #172033);
    font-size: 18px;
}

.tool-tutorial-help-title i {
    color: var(--tutorial-accent);
}

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

.tool-tutorial-help-grid details {
    border: 1px solid color-mix(in srgb, var(--tutorial-accent) 14%, transparent);
    border-radius: 13px;
    background: color-mix(in srgb, var(--bg-card, #fff) 92%, transparent);
}

.tool-tutorial-help-grid summary {
    padding: 14px 42px 14px 15px;
    position: relative;
    color: var(--text-primary, #172033);
    cursor: pointer;
    font-size: 13px;
    font-weight: 800;
    list-style: none;
}

.tool-tutorial-help-grid summary::-webkit-details-marker { display: none; }

.tool-tutorial-help-grid summary::after {
    content: '+';
    position: absolute;
    right: 15px;
    top: 50%;
    color: var(--tutorial-accent);
    font-size: 20px;
    transform: translateY(-50%);
}

.tool-tutorial-help-grid details[open] summary::after { content: '−'; }

.tool-tutorial-help-content {
    padding: 0 15px 14px;
    color: var(--text-secondary, #667085);
    font-size: 12px;
    line-height: 1.7;
}

.tool-tutorial-help-content ol {
    margin: 0;
    padding-left: 19px;
}

.tool-tutorial-safety-note {
    margin-top: 14px;
    padding: 13px 15px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    border: 1px solid rgba(255, 170, 0, .25);
    border-radius: 12px;
    color: var(--text-secondary, #667085);
    background: rgba(255, 170, 0, .07);
    font-size: 12px;
    line-height: 1.65;
}

.tool-tutorial-safety-note i {
    margin-top: 2px;
    color: #ff9700;
}

@media (max-width: 900px) {
    .tool-tutorial {
        padding: 26px;
    }

    .tool-tutorial-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .tool-tutorial-slide {
        grid-template-columns: 1fr;
    }

    .tool-tutorial-stage {
        min-height: 330px;
    }
}

@media (max-width: 640px) {
    .tool-tutorial {
        margin-top: 38px;
        padding: 18px;
        border-radius: 20px;
    }

    .tool-tutorial-heading-actions {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr;
    }

    .tool-tutorial-action {
        width: 100%;
    }

    .tool-tutorial-prerequisite {
        grid-template-columns: 40px minmax(0, 1fr);
    }

    .tool-tutorial-prerequisite-badge {
        grid-column: 1 / -1;
        justify-self: start;
    }

    .tool-tutorial-tabs {
        grid-template-columns: 1fr;
    }

    .tool-tutorial-tab {
        justify-content: flex-start;
    }

    .tool-tutorial-slide {
        padding: 16px;
        gap: 19px;
    }

    .tool-tutorial-stage {
        min-height: 300px;
        padding: 46px 12px 18px;
    }

    .tool-tutorial-window-body {
        grid-template-columns: 62px minmax(0, 1fr);
    }

    .tool-tutorial[data-tool="hapkit"] .tool-tutorial-window-body {
        grid-template-columns: 62px minmax(0, 1fr);
    }

    .tool-tutorial-sidebar {
        padding: 13px 6px;
    }

    .tool-tutorial-brand span,
    .tool-tutorial-menu-item span {
        display: none;
    }

    .tool-tutorial-brand,
    .tool-tutorial-menu-item {
        justify-content: center;
    }

    .tool-tutorial-window-main {
        padding: 13px;
    }

    .tool-tutorial-checks {
        grid-template-columns: 1fr;
    }

    .tool-tutorial-controls {
        padding: 14px;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .tool-tutorial-progress {
        grid-column: 1 / -1;
        grid-row: 1;
    }

    .tool-tutorial-help-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 390px) {
    .tool-tutorial {
        padding: 14px;
    }

    .tool-tutorial-heading h2 {
        font-size: 25px;
    }

    .tool-tutorial-window-title {
        align-items: flex-start;
        flex-direction: column;
    }

    .tool-tutorial-scene-card {
        grid-template-columns: 28px minmax(0, 1fr);
        padding: 10px;
    }

    .tool-tutorial-scene-icon {
        width: 28px;
        height: 28px;
    }

    .tool-tutorial-control {
        padding: 0 10px;
        font-size: 12px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .tool-tutorial *,
    .tool-tutorial *::before,
    .tool-tutorial *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
    }
}