.story-canvas-app {
    min-height: calc(100svh - 72px);
    background: var(--platform-muted);
}

.story-canvas-header {
    grid-template-columns: minmax(92px, auto) minmax(260px, 1fr) auto;
}

.story-canvas-back {
    min-height: 40px;
    display: inline-flex;
    gap: 7px;
    align-items: center;
    width: fit-content;
    padding: 7px 10px;
    border: 1px solid var(--platform-line);
    border-radius: 6px;
    color: var(--platform-ink-soft);
    background: var(--platform-surface-strong);
    font-size: 0.78rem;
    font-weight: 900;
}

.story-canvas-back:hover {
    color: var(--platform-accent-deep);
    border-color: var(--platform-accent);
}

.story-canvas-session {
    display: flex;
    gap: 8px;
    align-items: center;
}

.story-canvas-session > span {
    min-width: 74px;
    display: grid;
    gap: 1px;
    padding: 5px 9px;
    border-left: 1px solid var(--platform-line);
}

.story-canvas-session small {
    color: var(--platform-ink-soft);
    font-size: 0.62rem;
    font-weight: 900;
    text-transform: uppercase;
}

.story-canvas-session time,
.story-canvas-session strong {
    color: var(--platform-ink);
    font-size: 0.78rem;
    font-variant-numeric: tabular-nums;
}

.story-canvas-layout {
    display: grid;
    grid-template-columns: minmax(230px, 270px) minmax(520px, 1fr) minmax(240px, 285px);
    min-height: calc(100svh - 146px);
}

.story-canvas-rail,
.story-canvas-inspector {
    min-width: 0;
    align-self: start;
    max-height: calc(100svh - 146px);
    overflow-y: auto;
    background: var(--platform-surface);
}

.story-canvas-rail {
    position: sticky;
    top: 146px;
    display: grid;
    align-content: start;
    gap: 18px;
    min-height: calc(100svh - 146px);
    padding: 18px;
    border-right: 1px solid var(--platform-line);
}

.story-canvas-rail-heading {
    display: grid;
    gap: 5px;
}

.story-canvas-rail-heading h1 {
    margin: 0;
    font-size: 1.18rem;
    line-height: 1.18;
}

.story-canvas-rail-heading > p:last-child {
    margin: 0;
    color: var(--platform-ink-soft);
    font-size: 0.8rem;
}

.story-canvas-quest-switcher {
    display: grid;
    gap: 5px;
    margin-top: 6px;
}

.story-canvas-quest-switcher span {
    color: var(--platform-ink-soft);
    font-size: 0.62rem;
    font-weight: 900;
    text-transform: uppercase;
}

.story-canvas-quest-switcher select {
    width: 100%;
    min-height: 38px;
    padding: 7px 30px 7px 9px;
    border: 1px solid var(--platform-line);
    border-radius: 5px;
    color: var(--platform-ink);
    background: var(--platform-surface-strong);
    font: inherit;
    font-size: 0.72rem;
    font-weight: 800;
}

.story-canvas-quest-switcher select:focus-visible {
    border-color: var(--platform-accent);
    outline: 2px solid color-mix(in srgb, var(--platform-accent) 22%, transparent);
}

.story-canvas-chapters {
    display: grid;
    gap: 5px;
}

.story-canvas-chapters button {
    position: relative;
    min-width: 0;
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 9px;
    align-items: center;
    padding: 7px;
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--platform-ink);
    background: transparent;
    text-align: left;
    cursor: pointer;
}

.story-canvas-chapters button:hover {
    background: var(--platform-muted);
}

.story-canvas-chapters button.is-active {
    border-color: var(--platform-accent);
    background: color-mix(in srgb, var(--platform-accent) 9%, var(--platform-surface-strong));
}

.story-canvas-chapters button.is-complete::after {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--platform-accent);
    content: '';
}

.story-canvas-chapters img {
    width: 48px;
    height: 48px;
    border-radius: 5px;
    object-fit: cover;
}

.story-canvas-chapters button > span {
    min-width: 0;
    display: grid;
    gap: 2px;
}

.story-canvas-chapters small,
.story-canvas-chapters i {
    color: var(--platform-ink-soft);
    font-size: 0.61rem;
    font-style: normal;
    font-weight: 800;
}

.story-canvas-chapters strong {
    overflow: hidden;
    font-size: 0.76rem;
    line-height: 1.25;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.story-canvas-chapters i {
    grid-column: 2;
    margin-top: -5px;
}

.story-canvas-notes {
    display: grid;
    gap: 8px;
    padding-top: 14px;
    border-top: 1px solid var(--platform-line);
}

.story-canvas-notes label {
    display: grid;
    gap: 6px;
    color: var(--platform-ink-soft);
    font-size: 0.72rem;
    font-weight: 900;
}

.story-canvas-notes textarea {
    width: 100%;
    min-height: 110px;
    resize: vertical;
    padding: 9px 10px;
    border: 1px solid var(--platform-line);
    border-radius: 6px;
    color: var(--platform-ink);
    background: var(--platform-surface-strong);
}

.story-canvas-notes textarea:focus {
    border-color: var(--platform-accent);
    outline: 2px solid color-mix(in srgb, var(--platform-accent) 22%, transparent);
}

.story-canvas-notes > div {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.story-canvas-notes .button {
    min-height: 34px;
    padding: 6px 8px;
    font-size: 0.68rem;
}

.story-canvas-main {
    min-width: 0;
    background: var(--platform-surface-strong);
}

.story-canvas-tabs {
    position: sticky;
    z-index: 7;
    top: 146px;
    display: grid;
    grid-template-columns: repeat(3, minmax(120px, auto)) minmax(130px, 1fr);
    min-height: 58px;
    border-bottom: 1px solid var(--platform-line);
    background: color-mix(in srgb, var(--platform-surface-strong) 96%, transparent);
    backdrop-filter: blur(12px);
}

.story-canvas-tabs > button {
    min-width: 0;
    display: grid;
    grid-template-columns: 20px minmax(0, 1fr);
    grid-template-rows: auto auto;
    column-gap: 7px;
    align-content: center;
    padding: 8px 13px;
    border: 0;
    border-right: 1px solid var(--platform-line);
    border-bottom: 3px solid transparent;
    color: var(--platform-ink-soft);
    background: transparent;
    text-align: left;
    cursor: pointer;
}

.story-canvas-tabs > button img {
    grid-row: 1 / span 2;
    align-self: center;
}

.story-canvas-tabs > button span {
    color: inherit;
    font-size: 0.78rem;
    font-weight: 900;
}

.story-canvas-tabs > button small {
    overflow: hidden;
    font-size: 0.62rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.story-canvas-tabs > button:hover,
.story-canvas-tabs > button.is-active {
    color: var(--platform-ink);
    background: var(--platform-muted);
}

.story-canvas-tabs > button.is-active {
    border-bottom-color: var(--platform-accent);
}

.story-canvas-status {
    min-width: 0;
    align-self: center;
    padding: 8px 14px;
    overflow: hidden;
    color: var(--platform-ink-soft);
    font-size: 0.68rem;
    font-weight: 800;
    text-align: right;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.story-canvas-panel[hidden] {
    display: none;
}

.story-canvas-scene-panel {
    min-height: calc(100svh - 204px);
    display: grid;
    grid-template-columns: minmax(310px, 0.9fr) minmax(350px, 1.1fr);
}

.story-canvas-scene-visual {
    position: relative;
    min-height: 620px;
    overflow: hidden;
    border-right: 1px solid var(--platform-line);
    background: #14271f;
}

.story-canvas-scene-visual > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.story-canvas-scene-marker {
    position: absolute;
    top: 18px;
    left: 18px;
    display: grid;
    gap: 2px;
    max-width: calc(100% - 36px);
    padding: 8px 11px;
    border: 1px solid rgba(255, 255, 255, 0.36);
    border-radius: 6px;
    color: #ffffff;
    background: rgba(18, 39, 30, 0.9);
}

.story-canvas-scene-marker span {
    color: #e4c678;
    font-size: 0.66rem;
    font-weight: 900;
    text-transform: uppercase;
}

.story-canvas-scene-marker strong {
    overflow: hidden;
    font-size: 0.78rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.story-canvas-scene-copy {
    display: grid;
    align-content: center;
    gap: 18px;
    padding: clamp(24px, 4vw, 54px);
    background: var(--platform-surface-strong);
}

.story-canvas-scene-copy > header {
    display: flex;
    gap: 18px;
    align-items: start;
    justify-content: space-between;
}

.story-canvas-scene-copy h2 {
    margin: 3px 0 0;
    font-size: clamp(1.55rem, 3vw, 2.45rem);
    line-height: 1.05;
}

.story-canvas-scene-state {
    flex: 0 0 auto;
    padding: 5px 8px;
    border: 1px solid var(--platform-line);
    border-radius: 5px;
    color: var(--platform-accent-deep);
    background: color-mix(in srgb, var(--platform-accent) 9%, var(--platform-surface));
    font-size: 0.64rem;
    font-weight: 900;
}

.story-canvas-scene-text {
    margin: 0;
    color: var(--platform-ink-soft);
    font-size: 0.98rem;
    line-height: 1.65;
}

.story-canvas-objective {
    display: grid;
    gap: 5px;
    padding: 13px 15px;
    border-left: 4px solid var(--platform-highlight);
    background: color-mix(in srgb, var(--platform-highlight) 9%, var(--platform-muted));
}

.story-canvas-objective span {
    color: var(--platform-ink-soft);
    font-size: 0.66rem;
    font-weight: 900;
    text-transform: uppercase;
}

.story-canvas-objective strong {
    font-size: 0.88rem;
    line-height: 1.45;
}

.story-canvas-choice-list {
    display: grid;
    gap: 7px;
}

.story-canvas-choice-list button {
    min-width: 0;
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 2px 10px;
    align-items: center;
    padding: 10px 12px;
    border: 1px solid var(--platform-line);
    border-radius: 6px;
    color: var(--platform-ink);
    background: var(--platform-surface);
    text-align: left;
    cursor: pointer;
}

.story-canvas-choice-list button:hover,
.story-canvas-choice-list button.is-selected {
    border-color: var(--platform-accent);
    background: color-mix(in srgb, var(--platform-accent) 7%, var(--platform-surface));
}

.story-canvas-choice-list button > span {
    grid-row: 1 / span 2;
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border: 1px solid var(--platform-line);
    border-radius: 50%;
    color: var(--platform-accent-deep);
    background: var(--platform-surface-strong);
    font-size: 0.72rem;
    font-weight: 900;
}

.story-canvas-choice-list strong {
    font-size: 0.78rem;
}

.story-canvas-choice-list small {
    overflow: hidden;
    color: var(--platform-ink-soft);
    font-size: 0.67rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.story-canvas-scene-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.story-canvas-scene-actions .button {
    min-height: 40px;
}

.story-canvas-board-panel {
    min-height: calc(100svh - 204px);
}

.story-canvas-board-shell {
    min-height: calc(100svh - 204px);
    height: calc(100svh - 204px);
}

.story-canvas-board-shell.is-focus-mode {
    height: auto;
}

.story-canvas-chronicle-panel {
    min-height: calc(100svh - 204px);
    padding: clamp(22px, 4vw, 48px);
    background: var(--platform-surface-strong);
}

.story-canvas-chronicle-header {
    display: flex;
    gap: 20px;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--platform-line);
}

.story-canvas-chronicle-header h2 {
    margin: 3px 0 0;
    font-size: 1.45rem;
}

.story-canvas-chronicle-header > div:last-child {
    display: flex;
    gap: 7px;
}

.story-canvas-chronicle-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin: 0;
    border-bottom: 1px solid var(--platform-line);
}

.story-canvas-chronicle-stats > div {
    display: grid;
    gap: 3px;
    padding: 18px 14px;
    border-right: 1px solid var(--platform-line);
}

.story-canvas-chronicle-stats > div:last-child {
    border-right: 0;
}

.story-canvas-chronicle-stats dt {
    color: var(--platform-accent-deep);
    font-size: 1.45rem;
    font-weight: 900;
}

.story-canvas-chronicle-stats dd {
    margin: 0;
    color: var(--platform-ink-soft);
    font-size: 0.7rem;
    font-weight: 800;
}

.story-canvas-timeline {
    position: relative;
    display: grid;
    gap: 0;
    max-width: 800px;
    margin: 26px auto 0;
    padding: 0;
    list-style: none;
}

.story-canvas-timeline li {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 14px;
    padding: 0 0 20px;
}

.story-canvas-timeline li > span {
    position: relative;
    padding-top: 3px;
    color: var(--platform-accent-deep);
    font-size: 0.7rem;
    font-weight: 900;
    text-align: right;
}

.story-canvas-timeline li > span::after {
    position: absolute;
    top: 5px;
    right: -22px;
    width: 10px;
    height: 10px;
    border: 2px solid var(--platform-surface-strong);
    border-radius: 50%;
    background: var(--platform-accent);
    box-shadow: 0 0 0 1px var(--platform-line);
    content: '';
}

.story-canvas-timeline li > div {
    display: grid;
    gap: 5px;
    padding: 0 0 20px 16px;
    border-left: 1px solid var(--platform-line);
}

.story-canvas-timeline p {
    margin: 0;
    color: var(--platform-ink-soft);
    font-size: 0.78rem;
    line-height: 1.5;
}

.story-canvas-timeline time {
    color: var(--platform-ink-soft);
    font-size: 0.62rem;
}

.story-canvas-timeline li.is-empty {
    display: block;
    padding: 30px 0;
    color: var(--platform-ink-soft);
    text-align: center;
}

.story-canvas-inspector {
    position: sticky;
    top: 146px;
    display: grid;
    align-content: start;
    border-left: 1px solid var(--platform-line);
}

.story-canvas-inspector > section {
    padding: 16px;
    border-bottom: 1px solid var(--platform-line);
}

.story-canvas-hero-presence {
    display: grid;
    gap: 12px;
}

.story-canvas-hero-presence > img {
    width: 100%;
    aspect-ratio: 16 / 10;
    border-radius: 6px;
    object-fit: cover;
    object-position: center 24%;
}

.story-canvas-hero-presence h2 {
    margin: 3px 0 5px;
    font-size: 1.08rem;
}

.story-canvas-hero-presence p:last-child {
    margin: 0;
    color: var(--platform-ink-soft);
    font-size: 0.76rem;
    line-height: 1.5;
}

.story-canvas-pulse {
    display: grid;
    gap: 10px;
}

.story-canvas-inspector-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.72rem;
    font-weight: 900;
}

.story-canvas-inspector-heading strong {
    color: var(--platform-accent-deep);
    font-variant-numeric: tabular-nums;
}

.story-canvas-momentum {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 4px;
}

.story-canvas-momentum span {
    height: 8px;
    border: 1px solid var(--platform-line);
    border-radius: 2px;
    background: var(--platform-muted);
}

.story-canvas-momentum span.is-active {
    border-color: var(--platform-accent);
    background: var(--platform-accent);
}

.story-canvas-die {
    min-width: 0;
    display: grid;
    grid-template-columns: 42px minmax(70px, 1fr);
    gap: 0 10px;
    align-items: center;
    padding: 9px 10px;
    border: 1px solid var(--platform-line);
    border-radius: 6px;
    color: var(--platform-ink);
    background: var(--platform-surface-strong);
    text-align: left;
    cursor: pointer;
}

.story-canvas-die:hover {
    border-color: var(--platform-accent);
}

.story-canvas-die img {
    grid-row: 1 / span 2;
}

.story-canvas-die span {
    display: grid;
}

.story-canvas-die small {
    color: var(--platform-ink-soft);
    font-size: 0.62rem;
    font-weight: 900;
    text-transform: uppercase;
}

.story-canvas-die strong {
    font-size: 1rem;
    font-variant-numeric: tabular-nums;
}

.story-canvas-die i {
    grid-column: 1 / -1;
    margin-top: 6px;
    color: var(--platform-ink-soft);
    font-size: 0.68rem;
    font-style: normal;
}

.story-canvas-scene-kit dl {
    display: grid;
    gap: 0;
    margin: 10px 0 0;
}

.story-canvas-scene-kit dl > div {
    display: grid;
    gap: 3px;
    padding: 10px 0;
    border-bottom: 1px solid var(--platform-line);
}

.story-canvas-scene-kit dl > div:last-child {
    border-bottom: 0;
}

.story-canvas-scene-kit dt {
    color: var(--platform-ink-soft);
    font-size: 0.62rem;
    font-weight: 900;
    text-transform: uppercase;
}

.story-canvas-scene-kit dd {
    margin: 0;
    font-size: 0.74rem;
    line-height: 1.45;
}

.story-canvas-safety {
    margin: 0;
    border: 0;
    border-left: 4px solid var(--platform-highlight);
    border-radius: 0;
    box-shadow: none;
}

.story-canvas-safety p {
    margin-bottom: 0;
    font-size: 0.72rem;
}

@media (max-width: 1180px) {
    .story-canvas-layout {
        grid-template-columns: 230px minmax(0, 1fr);
    }

    .story-canvas-inspector {
        position: static;
        grid-column: 1 / -1;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        max-height: none;
        border-top: 1px solid var(--platform-line);
        border-left: 0;
    }

    .story-canvas-inspector > section {
        border-right: 1px solid var(--platform-line);
        border-bottom: 0;
    }

    .story-canvas-inspector > section:last-child {
        border-right: 0;
    }

    .story-canvas-hero-presence > img {
        aspect-ratio: 16 / 9;
    }
}

@media (max-width: 900px) {
    .story-canvas-header {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .story-canvas-header .platform-chamber-hero {
        justify-self: start;
    }

    .story-canvas-session {
        grid-column: 1 / -1;
        justify-content: flex-end;
    }

    .story-canvas-layout {
        grid-template-columns: 1fr;
    }

    .story-canvas-rail {
        position: static;
        max-height: none;
        min-height: 0;
        border-right: 0;
        border-bottom: 1px solid var(--platform-line);
    }

    .story-canvas-chapters {
        grid-auto-columns: minmax(210px, 250px);
        grid-auto-flow: column;
        overflow-x: auto;
        overscroll-behavior-inline: contain;
        scrollbar-width: thin;
    }

    .story-canvas-notes {
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: end;
    }

    .story-canvas-notes > div {
        align-content: end;
        flex-direction: column;
    }

    .story-canvas-tabs {
        top: 72px;
    }

    .story-canvas-scene-panel {
        grid-template-columns: 1fr;
    }

    .story-canvas-scene-visual {
        min-height: 0;
        aspect-ratio: 16 / 8;
        border-right: 0;
        border-bottom: 1px solid var(--platform-line);
    }

    .story-canvas-board-panel,
    .story-canvas-board-shell,
    .story-canvas-chronicle-panel {
        min-height: 620px;
    }

    .story-canvas-board-shell {
        height: 680px;
    }

    .story-canvas-inspector {
        grid-column: auto;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 620px) {
    .story-canvas-header {
        gap: 10px;
        padding: 9px 12px;
    }

    .story-canvas-header .platform-chamber-hero img {
        width: 40px;
        height: 40px;
    }

    .story-canvas-header .platform-chamber-hero strong {
        display: block;
        max-width: 58vw;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .story-canvas-session {
        display: grid;
        grid-template-columns: auto auto minmax(120px, 1fr);
        width: 100%;
    }

    .story-canvas-session > span {
        min-width: 0;
    }

    .story-canvas-session .button {
        width: 100%;
    }

    .story-canvas-tabs {
        grid-template-columns: repeat(3, minmax(92px, 1fr));
    }

    .story-canvas-tabs > button {
        grid-template-columns: 18px minmax(0, 1fr);
        padding: 7px 8px;
    }

    .story-canvas-status {
        grid-column: 1 / -1;
        padding: 6px 10px;
        border-top: 1px solid var(--platform-line);
        text-align: left;
    }

    .story-canvas-scene-copy {
        align-content: start;
        padding: 22px 16px 30px;
    }

    .story-canvas-scene-copy > header {
        display: grid;
    }

    .story-canvas-scene-state {
        width: fit-content;
    }

    .story-canvas-choice-list small {
        white-space: normal;
    }

    .story-canvas-scene-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .story-canvas-scene-actions .button {
        width: 100%;
    }

    .story-canvas-chronicle-header {
        align-items: stretch;
        flex-direction: column;
    }

    .story-canvas-chronicle-header > div:last-child {
        display: grid;
        grid-template-columns: 1fr;
    }

    .story-canvas-chronicle-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .story-canvas-chronicle-stats > div:nth-child(2) {
        border-right: 0;
    }

    .story-canvas-chronicle-stats > div:nth-child(-n + 2) {
        border-bottom: 1px solid var(--platform-line);
    }

    .story-canvas-timeline li {
        grid-template-columns: 52px minmax(0, 1fr);
    }

    .story-canvas-inspector {
        grid-template-columns: 1fr;
    }

    .story-canvas-inspector > section {
        border-right: 0;
        border-bottom: 1px solid var(--platform-line);
    }
}

@media (max-width: 430px) {
    .story-canvas-back span:last-child,
    .story-canvas-session > span:first-child {
        display: none;
    }

    .story-canvas-session {
        grid-template-columns: auto minmax(130px, 1fr);
    }

    .story-canvas-rail {
        padding: 14px;
    }

    .story-canvas-notes {
        grid-template-columns: 1fr;
    }

    .story-canvas-notes > div {
        flex-direction: row;
    }

    .story-canvas-tabs > button img {
        display: none;
    }

    .story-canvas-tabs > button {
        grid-template-columns: 1fr;
    }

    .story-canvas-scene-visual {
        aspect-ratio: 4 / 3;
    }

    .story-canvas-chronicle-panel {
        padding: 20px 14px 34px;
    }
}