/*
 * File Purpose: All styling for the Atlas shell (editor-atlas.html). Defines a
 *               2D infinite-canvas geometry — top deck, left dock, central
 *               viewport with pan/zoom tiles, right-side lightbox inspector,
 *               floating spotlight palette — and re-skins every class the
 *               shared Studio brain emits into the five canonical mount nodes.
 *
 * No --studio-* variable carryover. Atlas ships its own token set under
 * `body.atlas` with a paper-on-graphite light variant.
 *
 * Aesthetic: mission-control HUD. Graphite background, luminous cyan and amber
 * accents, magenta error, hairline rules, scan-line gradient on hover,
 * geometric sans (Space Grotesk + Inter) + mono (JetBrains Mono) only.
 */

/* === Z-INDEX LEGEND (storyblocks editor shells) ===
 *   0–9     background, dot-grid, decorative
 *   10–19   chrome (masthead, binder, dock)
 *   20–49   floating UI (inspectors, panels, lightboxes)
 *   50–79   dialogs (modal overlays, lightbox modals)
 *   80–99   toasts
 *   100+    skip-links, debug overlays
 * Shells stay inside these bands. Update docs/technical/editor-shell-contract.md
 * before inventing a new band.
 */

/* =====================================================================
   Tokens
   ===================================================================== */
body.atlas {
    --graphite-0:   #050709;
    --graphite-1:   #0a0d12;
    --graphite-2:   #11151c;
    --graphite-3:   #1a212b;
    --graphite-4:   #232c39;
    --graphite-5:   #2e3a4a;
    --glass-1:      rgba(255, 255, 255, 0.02);
    --glass-2:      rgba(255, 255, 255, 0.04);
    --glass-3:      rgba(255, 255, 255, 0.06);
    --hair:         rgba(110, 138, 168, 0.18);
    --hair-strong:  rgba(110, 138, 168, 0.36);
    --hair-bright:  rgba(110, 138, 168, 0.56);

    --ink-0:        #f4f7fb;
    --ink-1:        #c9d2dd;
    --ink-2:        #8c9aaa;
    --ink-3:        #5d6c7d;
    --ink-4:        #45525f;

    --cyan:         #5af2e8;
    --cyan-soft:    rgba(90, 242, 232, 0.16);
    --cyan-edge:    rgba(90, 242, 232, 0.42);
    --cyan-glow:    rgba(90, 242, 232, 0.32);
    --amber:        #ffb547;
    --amber-soft:   rgba(255, 181, 71, 0.14);
    --amber-edge:   rgba(255, 181, 71, 0.42);
    --magenta:      #ff5c8a;
    --magenta-soft: rgba(255, 92, 138, 0.14);
    --magenta-edge: rgba(255, 92, 138, 0.42);
    --teal:         #2adabc;
    --violet:       #a48bf2;
    --violet-soft:  rgba(164, 139, 242, 0.14);

    --sans-display: "Space Grotesk", "Inter", system-ui, -apple-system,
                    "Segoe UI", sans-serif;
    --sans-body:    "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
    --mono:         "JetBrains Mono", ui-monospace, "SF Mono", Menlo,
                    "Cascadia Code", Consolas, monospace;

    --deck-height:    132px;
    --dock-width:     236px;
    --lightbox-width: min(580px, 50vw);
    --tile-radius:    0px;
    --shadow-tile:    0 0 0 1px var(--hair),
                      0 18px 36px -20px rgba(0, 0, 0, 0.6);
    --shadow-tile-hot:0 0 0 1px var(--cyan-edge),
                      0 0 0 4px var(--cyan-soft),
                      0 18px 40px -16px rgba(0, 0, 0, 0.7);
    --shadow-deck:    0 1px 0 var(--hair), 0 18px 30px -22px rgba(0, 0, 0, 0.7);
    --shadow-light:   -1px 0 0 var(--hair),
                      -16px 0 40px -16px rgba(0, 0, 0, 0.5);
    --bg-canvas:      radial-gradient(circle at top left,
                          rgba(50, 80, 110, 0.18) 0%,
                          rgba(20, 28, 38, 0.32) 35%,
                          rgba(10, 13, 18, 0.0) 70%),
                      linear-gradient(180deg,
                          var(--graphite-1) 0%,
                          var(--graphite-0) 100%);
    --dot-grid:       radial-gradient(circle, rgba(110, 138, 168, 0.18) 1px,
                          transparent 1.5px);
}

body.atlas[data-theme="light"] {
    --graphite-0:   #f7f8fa;
    --graphite-1:   #ebeef3;
    --graphite-2:   #e1e6ee;
    --graphite-3:   #d3dae5;
    --graphite-4:   #c0c8d6;
    --graphite-5:   #a9b3c4;
    --glass-1:      rgba(0, 0, 0, 0.02);
    --glass-2:      rgba(0, 0, 0, 0.04);
    --glass-3:      rgba(0, 0, 0, 0.06);
    /* E4 (2026-05-16): Atlas light-mode contrast pass for WCAG AA 4.5:1.
     * Old cyan #007a8a ≈ 4.2:1 on #ebeef3 (fails). New #005a68 ≈ 5.1:1.
     * Old magenta #c03366 ≈ 4.5:1 (right at the line). New #a02550 ≈ 5.5:1.
     * Tile-border hair opacity bumped 0.22 → 0.40 so the tile shapes
     * read as something more than a suggestion on light backgrounds. */
    --hair:         rgba(30, 50, 78, 0.40);
    --hair-strong:  rgba(30, 50, 78, 0.55);
    --hair-bright:  rgba(30, 50, 78, 0.72);
    --ink-0:        #0a121d;
    --ink-1:        #243140;
    --ink-2:        #4a5969;
    --ink-3:        #687a8d;
    --ink-4:        #8a99ad;
    --cyan:         #005a68;
    --cyan-soft:    rgba(0, 90, 104, 0.1);
    --cyan-edge:    rgba(0, 90, 104, 0.4);
    --cyan-glow:    rgba(0, 90, 104, 0.16);
    --amber:        #8f5200;
    --amber-soft:   rgba(143, 82, 0, 0.1);
    --amber-edge:   rgba(143, 82, 0, 0.4);
    --magenta:      #a02550;
    --magenta-soft: rgba(160, 37, 80, 0.1);
    --magenta-edge: rgba(160, 37, 80, 0.4);
    --teal:         #008b76;
    --violet:       #6841d6;
    --violet-soft:  rgba(104, 65, 214, 0.1);
    --shadow-tile:    0 0 0 1px var(--hair),
                      0 14px 24px -16px rgba(20, 32, 48, 0.16);
    --bg-canvas:      radial-gradient(circle at top left,
                          rgba(165, 190, 230, 0.32) 0%,
                          rgba(212, 220, 235, 0.4) 40%,
                          rgba(247, 248, 250, 0.0) 80%),
                      linear-gradient(180deg, var(--graphite-1) 0%, var(--graphite-0) 100%);
    --dot-grid:       radial-gradient(circle, rgba(30, 50, 78, 0.18) 1px,
                          transparent 1.5px);
}

/* =====================================================================
   Reset + globals
   ===================================================================== */
html, body { min-height: 100%; }

body.atlas {
    margin: 0;
    padding: 0;
    background: var(--graphite-1);
    color: var(--ink-1);
    font-family: var(--sans-body);
    font-size: 15px;
    line-height: 1.5;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
}

body.atlas *, body.atlas *::before, body.atlas *::after {
    box-sizing: border-box;
}

body.atlas button, body.atlas input, body.atlas select, body.atlas textarea {
    font: inherit;
    color: inherit;
}

body.atlas a { color: var(--cyan); text-decoration: none; }
body.atlas a:hover { color: var(--amber); }

body.atlas .visually-hidden, body.atlas .sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap; border: 0;
}

body.atlas :focus { outline: none; }
body.atlas :focus-visible {
    outline: 1px solid var(--cyan);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px var(--cyan-soft);
}

.atlas-skip-link {
    position: fixed;
    top: -100px; left: 16px;
    z-index: 1000;
    padding: 10px 14px;
    background: var(--cyan);
    color: var(--graphite-0);
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    border-radius: 0;
}
.atlas-skip-link:focus { top: 12px; }

/* =====================================================================
   Frame layout
   ===================================================================== */
.atlas-frame {
    display: grid;
    grid-template-rows: auto 1fr;
    height: 100vh;
    background: var(--graphite-1);
    color: var(--ink-1);
    position: relative;
}

/* =====================================================================
   Deck (top)
   ===================================================================== */
.atlas-deck {
    background: linear-gradient(180deg, var(--graphite-2) 0%, var(--graphite-1) 100%);
    border-bottom: 1px solid var(--hair);
    box-shadow: var(--shadow-deck);
    padding: 8px clamp(14px, 2vw, 24px) 6px;
    z-index: 10;
    position: relative;
}

.atlas-deck::before {
    content: "";
    position: absolute;
    left: 0; right: 0; top: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    opacity: 0.4;
}

.deck-band {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--hair);
    margin-bottom: 8px;
}

.deck-mark {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--sans-display);
    text-decoration: none;
    color: var(--ink-0);
}
.deck-mark-glyph {
    color: var(--cyan);
    font-size: 1.2rem;
    text-shadow: 0 0 16px var(--cyan-glow);
}
.deck-mark-word {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.32em;
}
.deck-mark-tail {
    font-family: var(--mono);
    font-size: 0.66rem;
    color: var(--ink-3);
    letter-spacing: 0.2em;
}

.deck-shelf {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}
.deck-shelf-link {
    color: var(--ink-3);
    padding: 4px 10px;
    border: 1px solid var(--hair);
    border-radius: 0;
}
.deck-shelf-link:hover {
    color: var(--cyan);
    border-color: var(--cyan-edge);
    box-shadow: 0 0 14px var(--cyan-soft);
}
.deck-shelf-current {
    color: var(--graphite-0);
    background: var(--cyan);
    padding: 4px 10px;
    text-shadow: none;
}

.deck-row {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}

.deck-title-input {
    width: clamp(180px, 22vw, 340px);
    border: 0;
    border-bottom: 1px solid var(--hair-strong);
    background: transparent;
    padding: 6px 0;
    font-family: var(--sans-display);
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--ink-0);
}
.deck-title-input::placeholder {
    color: var(--ink-3);
    letter-spacing: 0.16em;
}
.deck-title-input:focus { border-bottom-color: var(--cyan); }

.deck-counters {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 4px 10px;
    border: 1px solid var(--hair);
    background: var(--glass-1);
    font-family: var(--mono);
}

.deck-counter {
    display: inline-flex;
    align-items: baseline;
    gap: 4px;
    font-size: 0.78rem;
    color: var(--ink-2);
}
.counter-key { color: var(--ink-3); letter-spacing: 0.14em; }
.counter-val {
    color: var(--cyan);
    text-shadow: 0 0 12px var(--cyan-glow);
    min-width: 1.6em;
    text-align: right;
    font-weight: 600;
}

/* Version pill mirror slot (atlas-shell.js stamps data-overview-version
 * into [data-atlas-version-slot]). Visually upgrades the pill to a
 * counter-class peer so it doesn't fade into the deck row's ink-2
 * fallback. Empty when no version is mirrored yet — :empty hides it
 * so the row collapses gracefully on cold boot. */
.deck-counter--version {
    color: var(--cyan);
    text-shadow: 0 0 12px var(--cyan-glow);
    font-weight: 600;
    letter-spacing: 0.08em;
    font-variant-numeric: tabular-nums;
}
.deck-counter--version:empty {
    display: none;
}

.deck-cluster {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.deck-cluster[data-cluster="stage"] { margin-left: auto; }

.deck-select-wrap { display: inline-flex; }

.atlas-select {
    appearance: none;
    border: 1px solid var(--hair);
    background: var(--graphite-2);
    color: var(--ink-1);
    padding: 5px 26px 5px 10px;
    font-family: var(--mono);
    font-size: 0.74rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: 0;
    background-image:
        linear-gradient(45deg, transparent 50%, var(--ink-3) 50%),
        linear-gradient(135deg, var(--ink-3) 50%, transparent 50%);
    background-position: calc(100% - 12px) 50%, calc(100% - 8px) 50%;
    background-size: 4px 4px;
    background-repeat: no-repeat;
}
.atlas-select:focus { border-color: var(--cyan); outline: none; }

.deck-toolbar {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 4px 0 2px;
}

/* 2026-05-27: on desktop, float the canvas-controls toolbar (zoom / fit /
 * layout / minimap) OUT of the deck onto the canvas bottom-center — where
 * canvas controls belong — instead of a third static deck row. Removes it
 * from the deck's flow so the header drops from ~221px to ~135px (the
 * "header too big" fix), without hiding any control. Below the spotlight
 * (z-80) + lightbox (z-85); above the canvas tiles. Mobile (≤768px) keeps
 * the in-flow layout. */
@media (min-width: 769px) {
    .deck-toolbar {
        position: fixed;
        /* Bottom-left of the canvas (past the dock), the conventional home
         * for canvas controls — and clear of the right-side lightbox
         * inspector, which a viewport-centered bar would have overlapped. */
        left: calc(var(--dock-width, 236px) + 16px);
        bottom: 14px;
        z-index: 12;
        gap: 12px;
        padding: 6px 12px;
        background: var(--graphite-2, rgba(20, 22, 28, 0.94));
        border: 1px solid var(--hair, rgba(255, 255, 255, 0.1));
        border-radius: 10px;
        box-shadow: var(--shadow-deck, 0 8px 24px rgba(0, 0, 0, 0.45));
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        max-width: calc(100vw - var(--dock-width, 236px) - var(--lightbox-width, 580px) - 40px);
    }
}

.deck-toolbar-group {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 3px 4px;
    border: 1px solid var(--hair);
    background: var(--glass-1);
}

.deck-zoom-readout {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--ink-2);
    min-width: 3.4em;
    text-align: center;
}

.deck-minimap-wrap {
    margin-left: auto;
    position: relative;
    border: 1px solid var(--hair);
    background: var(--graphite-3);
}

.deck-minimap {
    display: block;
    image-rendering: crisp-edges;
}

.deck-minimap-frame {
    position: absolute;
    border: 1px solid var(--cyan);
    box-shadow: 0 0 8px var(--cyan-glow);
    pointer-events: none;
}

/* =====================================================================
   Stage layout (dock | canvas | lightbox)
   ===================================================================== */
/* Canvas is the highlight at every width: it fills the whole stage and the
   dock + inspector float above it as slide-over drawers. */
.atlas-stage {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
    position: relative;
}

/* =====================================================================
   Dock (left) — overlay drawer at all widths
   ===================================================================== */
.atlas-dock {
    position: fixed;
    top: var(--deck-height, 0);
    left: 0;
    bottom: 0;
    width: var(--dock-width);
    max-width: 88vw;
    z-index: 50;
    background: linear-gradient(180deg, var(--graphite-2) 0%, var(--graphite-1) 100%);
    border-right: 1px solid var(--cyan-edge);
    box-shadow: var(--shadow-light);
    overflow-y: auto;
    overflow-x: hidden;
    padding: 14px 12px calc(18px + env(safe-area-inset-bottom, 0px));
    display: grid;
    gap: 14px;
    align-content: start;
    transform: translateX(-100%);
    pointer-events: none;
    transition: transform 240ms cubic-bezier(0.22, 0.61, 0.36, 1);
}
/* Open only when explicitly un-collapsed (default closed → canvas unobstructed
   on load, no flash-of-open-drawer before the shell script runs). */
body.atlas[data-dock-collapsed="false"] .atlas-dock {
    transform: translateX(0);
    pointer-events: auto;
}

/* Tap/click scrim behind the open dock — dismisses on tap outside. Subtle so
   the canvas stays visible underneath. */
.atlas-dock-scrim {
    position: fixed;
    inset: var(--deck-height, 0) 0 0 0;
    z-index: 49;
    background: rgba(5, 7, 9, 0.34);
    opacity: 0;
    pointer-events: none;
    transition: opacity 220ms ease;
}
body.atlas[data-dock-collapsed="false"] .atlas-dock-scrim {
    opacity: 1;
    pointer-events: auto;
}

.dock-section {
    border: 1px solid var(--hair);
    background: var(--glass-1);
    padding: 10px 12px;
    display: grid;
    gap: 8px;
}

.dock-section-head,
.dock-section > summary {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
    list-style: none;
    cursor: pointer;
    padding: 0;
}
.dock-section > summary::-webkit-details-marker { display: none; }

.dock-section-eyebrow {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--ink-2);
}
.dock-section-count {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--cyan);
    text-shadow: 0 0 10px var(--cyan-glow);
}
.dock-section-disclosure-tag {
    color: var(--ink-3);
    transition: transform 160ms ease;
}
.dock-section[open] > summary .dock-section-disclosure-tag {
    transform: rotate(90deg);
    color: var(--cyan);
}

.dock-section-body,
.dock-section-briefing-body,
.dock-section-navigator-body {
    display: grid;
    gap: 6px;
}

.dock-card {
    display: grid;
    grid-template-columns: 32px 1fr;
    gap: 8px;
    align-items: center;
    padding: 6px 8px;
    border: 1px solid var(--hair);
    background: var(--graphite-2);
    color: var(--ink-1);
    cursor: pointer;
    text-align: left;
}
.dock-card:hover {
    border-color: var(--cyan-edge);
    background: var(--graphite-3);
    box-shadow: inset 0 0 12px var(--cyan-soft);
}
.dock-card.is-selected {
    border-color: var(--cyan);
    background: var(--cyan-soft);
    color: var(--cyan);
}

.dock-card-avatar {
    width: 32px; height: 32px;
    display: grid;
    place-items: center;
    background: var(--graphite-4);
    border: 1px solid var(--hair);
    font-family: var(--sans-display);
    font-weight: 700;
    font-size: 0.86rem;
    color: var(--cyan);
    text-shadow: 0 0 10px var(--cyan-glow);
}
.dock-card.is-place .dock-card-avatar { color: var(--amber); text-shadow: 0 0 10px var(--amber-edge); }
.dock-card.is-var   .dock-card-avatar { color: var(--violet); text-shadow: 0 0 10px var(--violet-soft); }

.dock-card-body {
    display: grid;
    gap: 2px;
    min-width: 0;
}
.dock-card-body strong {
    display: block;
    font-family: var(--sans-display);
    font-weight: 600;
    font-size: 0.86rem;
    color: var(--ink-0);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.dock-card-body span {
    font-family: var(--mono);
    font-size: 0.66rem;
    color: var(--ink-3);
    letter-spacing: 0.06em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dock-empty {
    padding: 8px 10px;
    border: 1px dashed var(--hair);
    color: var(--ink-3);
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-align: center;
}

/* Re-skin Studio's navigator + overview inside the dock */
.dock-section-navigator-body .navigator-section,
.dock-section-briefing-body .section-shell,
.dock-section-briefing-body .overview-shell {
    padding: 0;
    background: transparent;
    border: 0;
}

.dock-section-navigator-body .studio-disclosure,
.dock-section-briefing-body .studio-disclosure {
    border: 0;
    background: transparent;
    margin: 0;
}
.dock-section-navigator-body .studio-disclosure-summary,
.dock-section-briefing-body .studio-disclosure-summary {
    list-style: none;
    cursor: pointer;
    padding: 6px 4px;
    display: flex;
    align-items: baseline;
    gap: 8px;
    border-top: 1px solid var(--hair);
}
.dock-section-navigator-body .studio-disclosure-summary::-webkit-details-marker,
.dock-section-briefing-body .studio-disclosure-summary::-webkit-details-marker { display: none; }
.dock-section-navigator-body .studio-disclosure-summary::before,
.dock-section-briefing-body .studio-disclosure-summary::before {
    content: "›";
    color: var(--cyan);
    font-family: var(--mono);
}
.dock-section-navigator-body .studio-disclosure[open] > .studio-disclosure-summary::before,
.dock-section-briefing-body .studio-disclosure[open] > .studio-disclosure-summary::before {
    content: "⌄";
}
.dock-section-navigator-body .studio-disclosure-heading strong,
.dock-section-briefing-body .studio-disclosure-heading strong {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-1);
}
.dock-section-navigator-body .navigator-list,
.dock-section-navigator-body .navigator-scene-list {
    display: grid;
    gap: 4px;
    padding: 4px 0;
}
.dock-section-navigator-body .navigator-item {
    display: grid;
    gap: 0;
    text-align: left;
    border: 1px solid transparent;
    background: transparent;
    padding: 6px 8px;
    cursor: pointer;
    color: var(--ink-1);
    font-family: var(--sans-body);
}
.dock-section-navigator-body .navigator-item:hover { border-color: var(--cyan-edge); background: var(--graphite-2); }
.dock-section-navigator-body .navigator-item.is-selected { border-color: var(--cyan); background: var(--cyan-soft); color: var(--cyan); }
.dock-section-navigator-body .navigator-item strong {
    display: block;
    font-family: var(--sans-display);
    font-weight: 600;
    font-size: 0.86rem;
}
.dock-section-navigator-body .navigator-item span {
    font-family: var(--mono);
    font-size: 0.66rem;
    color: var(--ink-3);
    letter-spacing: 0.04em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.dock-section-briefing-body .overview-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    padding: 6px 0;
}
.dock-section-briefing-body .overview-stat {
    padding: 8px 10px;
    border: 1px solid var(--hair);
    background: var(--graphite-2);
}
.dock-section-briefing-body .overview-stat strong {
    display: block;
    font-family: var(--mono);
    color: var(--cyan);
    font-size: 1.05rem;
    text-shadow: 0 0 12px var(--cyan-glow);
}
.dock-section-briefing-body .overview-stat span {
    font-family: var(--mono);
    font-size: 0.62rem;
    color: var(--ink-3);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.dock-section-briefing-body .overview-workflow {
    display: grid;
    gap: 6px;
}
.dock-section-briefing-body .workflow-card {
    padding: 8px 10px;
    border: 1px solid var(--hair);
    background: var(--graphite-2);
    display: grid;
    gap: 2px;
}
.dock-section-briefing-body .workflow-card strong {
    font-family: var(--sans-display);
    font-weight: 600;
    color: var(--ink-0);
    font-size: 0.86rem;
}
.dock-section-briefing-body .workflow-card span,
.dock-section-briefing-body .workflow-card small {
    font-family: var(--mono);
    font-size: 0.66rem;
    color: var(--ink-3);
    letter-spacing: 0.04em;
}
.dock-section-briefing-body .workflow-card.is-complete {
    border-color: var(--cyan);
    background: var(--cyan-soft);
}
.dock-section-briefing-body .workflow-card.is-complete strong { color: var(--cyan); }

.dock-section-briefing-body .overview-callout {
    padding: 8px 10px;
    border-left: 2px solid var(--amber);
    background: var(--amber-soft);
}
.dock-section-briefing-body .overview-callout strong {
    font-family: var(--mono);
    color: var(--amber);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.dock-section-briefing-body .overview-callout span {
    color: var(--ink-1);
    font-size: 0.84rem;
    font-family: var(--sans-body);
}

/* =====================================================================
   Canvas
   ===================================================================== */
.atlas-canvas {
    position: relative;
    overflow: hidden;
    background: var(--bg-canvas);
}

.canvas-viewport {
    position: absolute;
    inset: 0;
    overflow: hidden;
    cursor: grab;
    /* Claim all touch gestures for the pan/zoom handler — without this the
       browser eats two-finger pinch as native page-zoom and drags as scroll. */
    touch-action: none;
    overscroll-behavior: none;
    -webkit-user-select: none;
    user-select: none;
    background-image: var(--dot-grid);
    background-size: 24px 24px;
    background-position: 0 0;
    background-repeat: repeat;
}
.canvas-viewport.is-panning { cursor: grabbing; }

.canvas-world {
    position: absolute;
    left: 0; top: 0;
    width: 1px; height: 1px;
    transform-origin: 0 0;
}

.canvas-edges {
    position: absolute;
    left: 0; top: 0;
    overflow: visible;
    pointer-events: none;
    width: 1px; height: 1px;
}

.canvas-edge {
    fill: none;
    stroke: var(--hair-bright);
    stroke-width: 1.2;
    opacity: 0.7;
    transition: stroke 200ms ease, opacity 200ms ease, stroke-width 200ms ease;
}
.canvas-edge.is-conditional {
    stroke: var(--amber);
    stroke-dasharray: 6 4;
    animation: atlas-dash 1.6s linear infinite;
}
.canvas-edge.is-highlight {
    stroke: var(--cyan);
    stroke-width: 1.8;
    opacity: 1;
    filter: drop-shadow(0 0 6px var(--cyan-glow));
}
.canvas-edge.is-orphan {
    stroke: var(--magenta);
    stroke-dasharray: 2 4;
}

@keyframes atlas-dash {
    to { stroke-dashoffset: -10; }
}

.canvas-tiles {
    position: absolute;
    left: 0; top: 0;
    width: 1px; height: 1px;
}

.canvas-tile {
    position: absolute;
    width: 220px;
    min-height: 96px;
    padding: 12px 14px;
    background: var(--graphite-2);
    border: 1px solid var(--hair);
    border-radius: var(--tile-radius);
    box-shadow: var(--shadow-tile);
    cursor: pointer;
    display: grid;
    gap: 4px;
    align-content: start;
    transition: transform 140ms ease, box-shadow 200ms ease, border-color 200ms ease;
    user-select: none;
    touch-action: none; /* tiles own their drag gesture on touch */
    color: var(--ink-1);
    text-align: left;
    font-family: var(--sans-body);
    overflow: hidden;
}

.canvas-tile::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
        rgba(255, 255, 255, 0.03) 0%,
        transparent 30%);
    pointer-events: none;
}

.canvas-tile::after {
    content: "";
    position: absolute;
    left: 0; right: 0; top: 0;
    height: 2px;
    background: var(--ink-3);
    opacity: 0.42;
}
.canvas-tile[data-act-band="1"]::after { background: var(--cyan); }
.canvas-tile[data-act-band="2"]::after { background: var(--amber); }
.canvas-tile[data-act-band="3"]::after { background: var(--magenta); }
.canvas-tile[data-act-band="4"]::after { background: var(--violet); }
.canvas-tile[data-act-band="5"]::after { background: var(--teal); }

.canvas-tile:hover {
    border-color: var(--cyan-edge);
    box-shadow: var(--shadow-tile-hot);
    transform: translateY(-1px);
}

.canvas-tile.is-selected {
    border-color: var(--cyan);
    box-shadow: var(--shadow-tile-hot);
}

.canvas-tile.is-dragging {
    transition: none;
    box-shadow: var(--shadow-tile-hot);
    z-index: 5;
    transform: scale(1.02);
}

.canvas-tile-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 6px;
}

.canvas-tile-id {
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.14em;
    color: var(--ink-3);
    text-transform: uppercase;
}

.canvas-tile-act {
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.14em;
    color: var(--cyan);
    text-transform: uppercase;
    text-shadow: 0 0 8px var(--cyan-glow);
}

.canvas-tile-title {
    font-family: var(--sans-display);
    font-weight: 600;
    font-size: 1rem;
    color: var(--ink-0);
    line-height: 1.25;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.canvas-tile-summary {
    font-family: var(--sans-body);
    font-size: 0.82rem;
    color: var(--ink-2);
    line-height: 1.4;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.canvas-tile-foot {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 2px;
}

.canvas-tile-pill {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 2px 6px;
    border: 1px solid var(--hair-strong);
    color: var(--ink-2);
}
.canvas-tile-pill[data-tone="cyan"]    { color: var(--cyan); border-color: var(--cyan-edge); }
.canvas-tile-pill[data-tone="amber"]   { color: var(--amber); border-color: var(--amber-edge); }
.canvas-tile-pill[data-tone="magenta"] { color: var(--magenta); border-color: var(--magenta-edge); }

.canvas-tile-handle {
    position: absolute;
    right: 4px; top: 4px;
    width: 18px; height: 18px;
    display: grid;
    place-items: center;
    color: var(--ink-3);
    font-family: var(--mono);
    font-size: 0.7rem;
    cursor: grab;
    opacity: 0.6;
}
.canvas-tile-handle:hover { color: var(--cyan); opacity: 1; }
.canvas-tile.is-dragging .canvas-tile-handle { cursor: grabbing; }

.canvas-empty {
    position: absolute;
    inset: 0;
    display: grid;
    place-content: center;
    text-align: center;
    color: var(--ink-2);
    font-family: var(--mono);
    pointer-events: none;
}
/* HTML5 [hidden] is display:none in the UA stylesheet, but the explicit
 * display:grid above wins on specificity → atlas-shell.js's
 * `emptyEl.hidden = true` was being silently ignored, so the empty card
 * stayed visible even when scenes existed. Restore the toggle. (Same
 * pattern .atlas-overlay-preview / .atlas-overlay-spotlight already use.) */
.canvas-empty[hidden] {
    display: none;
}
.canvas-empty strong {
    display: block;
    font-family: var(--sans-display);
    font-weight: 700;
    color: var(--ink-0);
    font-size: 1.4rem;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}
.canvas-empty p { max-width: 32ch; line-height: 1.5; font-size: 0.86rem; }
.canvas-empty kbd {
    font-family: var(--mono);
    color: var(--cyan);
    border: 1px solid var(--cyan-edge);
    padding: 1px 6px;
    background: var(--cyan-soft);
}

.canvas-status {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--ink-3);
    background: var(--glass-2);
    padding: 4px 10px;
    border: 1px solid var(--hair);
    letter-spacing: 0.08em;
    pointer-events: none;
}

/* =====================================================================
   Buttons (atlas-button + restyle of studio-button)
   ===================================================================== */
.atlas-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    border: 1px solid var(--hair-strong);
    background: var(--glass-2);
    color: var(--ink-0);
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 140ms ease, color 140ms ease, border-color 140ms ease, box-shadow 200ms ease;
    border-radius: 0;
    text-decoration: none;
}
.atlas-button:hover {
    color: var(--graphite-0);
    background: var(--cyan);
    border-color: var(--cyan);
    box-shadow: 0 0 16px var(--cyan-glow);
}
.atlas-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}
.atlas-button-primary {
    background: var(--cyan);
    color: var(--graphite-0);
    border-color: var(--cyan);
}
.atlas-button-primary:hover {
    background: var(--amber);
    border-color: var(--amber);
    box-shadow: 0 0 16px var(--amber-edge);
}
.atlas-button-ghost {
    background: transparent;
    border-color: var(--hair);
    color: var(--ink-2);
}
.atlas-button-ghost:hover {
    color: var(--graphite-0);
    background: var(--cyan);
    border-color: var(--cyan);
}

.atlas-icon-button {
    display: inline-grid;
    place-items: center;
    width: 26px; height: 26px;
    border: 1px solid var(--hair);
    background: var(--glass-2);
    color: var(--ink-1);
    font-family: var(--mono);
    font-size: 0.86rem;
    line-height: 1;
    border-radius: 0;
    cursor: pointer;
    transition: background 140ms ease, color 140ms ease, border-color 140ms ease, box-shadow 200ms ease;
}
.atlas-icon-button:hover {
    color: var(--graphite-0);
    background: var(--cyan);
    border-color: var(--cyan);
    box-shadow: 0 0 14px var(--cyan-glow);
}
.atlas-icon-button[aria-pressed="true"] {
    background: var(--cyan-soft);
    color: var(--cyan);
    border-color: var(--cyan-edge);
}

/* Studio's .studio-button classes restyled as Atlas buttons */
.studio-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    border: 1px solid var(--hair-strong);
    background: var(--glass-2);
    color: var(--ink-0);
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 140ms ease, color 140ms ease, border-color 140ms ease, box-shadow 200ms ease;
    border-radius: 0;
    min-height: 0;
    box-shadow: none;
}
.studio-button:hover {
    color: var(--graphite-0);
    background: var(--cyan);
    border-color: var(--cyan);
    transform: none;
}
.studio-button:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

.studio-button-primary {
    background: var(--cyan);
    color: var(--graphite-0);
    border-color: var(--cyan);
}
.studio-button-primary:hover {
    background: var(--amber);
    border-color: var(--amber);
    color: var(--graphite-0);
    box-shadow: 0 0 14px var(--amber-edge);
}

.studio-button-secondary {
    background: var(--glass-2);
    border-color: var(--hair-strong);
    color: var(--ink-0);
}

.studio-button-subtle {
    background: transparent;
    border-color: var(--cyan-edge);
    color: var(--cyan);
}
.studio-button-subtle:hover {
    background: var(--cyan-soft);
    color: var(--cyan);
    border-color: var(--cyan);
}

.studio-button-ghost {
    background: transparent;
    border-color: var(--hair);
    color: var(--ink-3);
    border-style: dashed;
}

.studio-button-danger {
    background: transparent;
    border-color: var(--magenta);
    color: var(--magenta);
}
.studio-button-danger:hover {
    background: var(--magenta);
    color: var(--graphite-0);
    box-shadow: 0 0 14px var(--magenta-edge);
}

/* =====================================================================
   Lightbox (right-side inspector)
   ===================================================================== */
.atlas-lightbox {
    position: fixed;
    top: var(--deck-height, 0);
    right: 0;
    bottom: 0;
    width: var(--lightbox-width);
    z-index: 50;
    pointer-events: none;
    transform: translateX(100%);
    transition: transform 240ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

body.atlas[data-lightbox-open="true"] .atlas-lightbox {
    transform: translateX(0);
    pointer-events: auto;
}

.lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg,
        rgba(5, 7, 9, 0) 0%,
        rgba(5, 7, 9, 0.4) 18%,
        rgba(5, 7, 9, 0) 100%);
    pointer-events: none;
}

.lightbox-panel {
    position: absolute;
    right: 0; top: 0; bottom: 0;
    width: 100%;
    background: linear-gradient(180deg, var(--graphite-2) 0%, var(--graphite-1) 100%);
    border-left: 1px solid var(--cyan-edge);
    box-shadow: var(--shadow-light);
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
}

.lightbox-panel::before {
    content: "";
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, transparent, var(--cyan), transparent);
    opacity: 0.5;
}

.lightbox-head {
    padding: 14px 18px 12px;
    border-bottom: 1px solid var(--hair);
    background: var(--graphite-2);
    display: grid;
    grid-template-columns: 1fr auto;
    column-gap: 10px;
    align-items: baseline;
}
.lightbox-eyebrow {
    grid-column: 1 / -1;
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--cyan);
}
.lightbox-title {
    margin: 4px 0 0;
    font-family: var(--sans-display);
    font-weight: 600;
    font-size: 1.4rem;
    color: var(--ink-0);
    letter-spacing: -0.01em;
    overflow: hidden;
    text-overflow: ellipsis;
}
.lightbox-close {
    align-self: center;
    justify-self: end;
}

.lightbox-body {
    overflow-y: auto;
    padding: 14px 18px 20px;
}

.lightbox-foot {
    padding: 8px 18px;
    border-top: 1px solid var(--hair);
    background: var(--glass-1);
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-family: var(--mono);
    font-size: 0.66rem;
    color: var(--ink-3);
    letter-spacing: 0.08em;
}
.lightbox-foot-id { color: var(--cyan); text-shadow: 0 0 8px var(--cyan-glow); }

/* Re-skin Studio inspector inside the lightbox */
.lightbox-body .inspector-shell { display: contents; }
.lightbox-body .inspector-header {
    margin: 0 0 14px;
    padding: 0;
    border: 0;
}
.lightbox-body .inspector-header .section-title-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
    flex-wrap: wrap;
}
.lightbox-body .inspector-header h2 {
    margin: 0;
    font-family: var(--sans-display);
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--ink-0);
    letter-spacing: 0.02em;
}
.lightbox-body .inspector-header .section-meta {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.14em;
    color: var(--ink-3);
}
.lightbox-body .inspector-body { padding: 0; }

.lightbox-body .field-help,
.lightbox-body .muted-copy {
    font-family: var(--sans-body);
    color: var(--ink-2);
    font-size: 0.86rem;
    line-height: 1.5;
}

.lightbox-body .studio-form-grid {
    display: grid;
    gap: 12px;
}
.lightbox-body .studio-form-grid.two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.lightbox-body .form-block label,
.lightbox-body .form-block legend {
    display: block;
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 4px;
}
.lightbox-body .studio-field,
.lightbox-body .studio-select,
.lightbox-body .studio-textarea {
    width: 100%;
    border: 1px solid var(--hair);
    background: var(--graphite-2);
    color: var(--ink-0);
    padding: 6px 8px;
    font-family: var(--sans-body);
    font-size: 0.92rem;
    border-radius: 0;
}
.lightbox-body .studio-textarea {
    min-height: 120px;
    line-height: 1.55;
    resize: vertical;
}
.lightbox-body .studio-field:focus,
.lightbox-body .studio-select:focus,
.lightbox-body .studio-textarea:focus { border-color: var(--cyan); outline: none; }

.lightbox-body .studio-disclosure {
    border: 1px solid var(--hair);
    background: var(--graphite-2);
    margin: 12px 0 0;
}
.lightbox-body .studio-disclosure-summary {
    list-style: none;
    cursor: pointer;
    padding: 8px 12px;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
}
.lightbox-body .studio-disclosure-summary::-webkit-details-marker { display: none; }
.lightbox-body .studio-disclosure-summary::before {
    content: "›";
    color: var(--cyan);
    font-family: var(--mono);
    margin-right: 8px;
}
.lightbox-body .studio-disclosure[open] > .studio-disclosure-summary::before {
    content: "⌄";
}
.lightbox-body .studio-disclosure-heading strong {
    font-family: var(--sans-display);
    font-weight: 600;
    color: var(--ink-0);
    font-size: 0.94rem;
}
.lightbox-body .studio-disclosure-body {
    padding: 8px 12px 12px;
    display: grid;
    gap: 10px;
    border-top: 1px solid var(--hair);
}

.lightbox-body .scene-pill,
.lightbox-body .choice-card,
.lightbox-body .timeline-card {
    border: 1px solid var(--hair);
    background: var(--graphite-3);
    padding: 10px 12px;
    border-radius: 0;
    display: grid;
    gap: 4px;
}
.lightbox-body .scene-pill:hover,
.lightbox-body .choice-card:hover { border-color: var(--cyan-edge); }
.lightbox-body .scene-pill.is-selected,
.lightbox-body .choice-card.is-selected {
    border-color: var(--cyan);
    background: var(--cyan-soft);
}
.lightbox-body .scene-pill strong,
.lightbox-body .choice-card strong,
.lightbox-body .timeline-card strong {
    font-family: var(--sans-display);
    font-weight: 600;
    font-size: 0.94rem;
    color: var(--ink-0);
}
.lightbox-body .scene-pill span,
.lightbox-body .choice-card span,
.lightbox-body .timeline-card span {
    font-family: var(--sans-body);
    color: var(--ink-2);
    font-size: 0.84rem;
}

.lightbox-body .pill,
.lightbox-body .tag,
.lightbox-body .stamp,
.lightbox-body .preview-variable {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border: 1px solid var(--hair-strong);
    background: transparent;
    font-family: var(--mono);
    font-size: 0.64rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-2);
}
.lightbox-body .pill { color: var(--cyan); border-color: var(--cyan-edge); }
.lightbox-body .preview-variable { color: var(--amber); border-color: var(--amber-edge); }

.lightbox-body .empty-panel,
.lightbox-body .preview-blocked {
    padding: 10px 12px;
    border: 1px dashed var(--hair);
    color: var(--ink-3);
    font-family: var(--mono);
    font-size: 0.74rem;
    letter-spacing: 0.06em;
}
.lightbox-body .preview-blocked {
    border-color: var(--magenta-edge);
    color: var(--magenta);
    background: var(--magenta-soft);
}

/* Inline refine inside the lightbox */
.lightbox-body .refine-launcher {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed var(--hair);
}
.lightbox-body .refine-details > summary {
    list-style: none;
    cursor: pointer;
    padding: 6px 8px;
    display: flex;
    align-items: baseline;
    gap: 10px;
    background: var(--cyan-soft);
    color: var(--cyan);
    font-family: var(--mono);
    font-size: 0.74rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.lightbox-body .refine-details > summary::-webkit-details-marker { display: none; }
.lightbox-body .refine-summary-hint {
    font-family: var(--sans-body);
    color: var(--ink-2);
    font-size: 0.78rem;
    letter-spacing: 0;
    text-transform: none;
}
.lightbox-body .refine-prompt {
    border: 1px solid var(--hair);
    background: var(--graphite-2);
    padding: 8px 10px;
    font-family: var(--sans-body);
    color: var(--ink-0);
    border-radius: 0;
    min-height: 80px;
}
.lightbox-body .refine-error {
    padding: 8px 10px;
    border-left: 2px solid var(--magenta);
    background: var(--magenta-soft);
    color: var(--magenta);
    font-family: var(--mono);
    font-size: 0.78rem;
}
.lightbox-body .refine-panel {
    margin-top: 12px;
    border: 1px solid var(--cyan-edge);
    background: var(--graphite-2);
    overflow: hidden;
}
.lightbox-body .refine-toolbar {
    padding: 6px 10px;
    border-bottom: 1px solid var(--hair);
    background: var(--graphite-3);
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-wrap: wrap;
}
.lightbox-body .refine-toolbar strong {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--cyan);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.lightbox-body .refine-meta {
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--ink-3);
    margin-right: auto;
}
.lightbox-body .refine-segments {
    padding: 10px;
    display: grid;
    gap: 8px;
    max-height: 50vh;
    overflow-y: auto;
}
.lightbox-body .refine-segment {
    padding: 8px 10px;
    border: 1px solid var(--hair);
    background: var(--graphite-3);
}
.lightbox-body .refine-segment.refine-kind-equal { opacity: 0.55; border-style: dashed; }
.lightbox-body .refine-segment.refine-kind-changed { border-color: var(--cyan-edge); }
.lightbox-body .refine-segment.refine-kind-added { border-color: var(--teal); }
.lightbox-body .refine-segment.refine-kind-removed { border-color: var(--magenta); }
.lightbox-body .refine-segment.refine-decision-reject { opacity: 0.4; }
.lightbox-body .refine-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
}
.lightbox-body .refine-kind {
    font-family: var(--mono);
    font-size: 0.64rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-3);
}
.lightbox-body .refine-old {
    font-family: var(--sans-body);
    color: var(--ink-2);
    text-decoration: line-through wavy var(--magenta);
    text-decoration-skip-ink: none;
    white-space: pre-wrap;
    font-size: 0.86rem;
    line-height: 1.5;
}
.lightbox-body .refine-new {
    font-family: var(--sans-body);
    color: var(--teal);
    white-space: pre-wrap;
    font-size: 0.86rem;
    line-height: 1.5;
}

.lightbox-body .inspector-actions,
.lightbox-body .navigator-inline-actions,
.lightbox-body .disclosure-actions,
.lightbox-body .preview-toolbar,
.lightbox-body .preview-choice-bar,
.lightbox-body .choice-inline-actions,
.lightbox-body .proposal-actions,
.lightbox-body .stack-row,
.lightbox-body .refine-form-actions,
.lightbox-body .refine-toolbar-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 6px;
}

/* =====================================================================
   Spotlight palette (chat overlay)
   ===================================================================== */
.atlas-overlay-spotlight,
.atlas-overlay-preview {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: grid;
    place-items: center;
    padding: 60px 40px;
}
.atlas-overlay-spotlight[hidden],
.atlas-overlay-preview[hidden] { display: none; }

.overlay-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(5, 7, 9, 0.72);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.overlay-panel {
    position: relative;
    width: min(820px, 100%);
    max-height: 78vh;
    background: linear-gradient(180deg, var(--graphite-2) 0%, var(--graphite-1) 100%);
    border: 1px solid var(--cyan-edge);
    box-shadow: 0 0 0 1px var(--cyan-edge),
                0 24px 60px -16px rgba(0, 0, 0, 0.8),
                0 0 40px var(--cyan-glow);
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
}
.spotlight-panel { width: min(720px, 100%); max-height: 70vh; }

.overlay-head {
    display: grid;
    grid-template-columns: 1fr auto;
    column-gap: 12px;
    align-items: baseline;
    padding: 12px 18px;
    border-bottom: 1px solid var(--hair);
    background: var(--graphite-2);
}
.overlay-eyebrow {
    grid-column: 1 / -1;
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--cyan);
    text-shadow: 0 0 10px var(--cyan-glow);
}
.overlay-title {
    margin: 4px 0 0;
    font-family: var(--sans-display);
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--ink-0);
    letter-spacing: 0.02em;
}

.overlay-body {
    overflow-y: auto;
    padding: 12px 18px 18px;
    min-height: 0;
}

/* Studio chat-shell inside spotlight */
.spotlight-body .chat-shell {
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr) auto;
    height: 100%;
    min-height: 0;
    gap: 0;
}

.spotlight-body .chat-header {
    padding: 6px 0 10px;
    border-bottom: 1px solid var(--hair);
}
.spotlight-body .chat-header .section-title-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
}
.spotlight-body .chat-title {
    margin: 0;
    font-family: var(--sans-display);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--ink-0);
    letter-spacing: 0.02em;
}
.spotlight-body .chat-subtitle {
    margin: 4px 0 0;
    font-family: var(--sans-body);
    color: var(--ink-2);
    font-size: 0.86rem;
    max-width: 60ch;
}

.spotlight-body .chat-history {
    overflow-y: auto;
    padding: 10px 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 36vh;
}

.spotlight-body .chat-empty {
    display: grid;
    gap: 8px;
}
.spotlight-body .chat-empty-card {
    border: 1px solid var(--hair);
    background: var(--graphite-2);
    padding: 10px 12px;
}
.spotlight-body .chat-empty-card h3 {
    margin: 0 0 4px;
    font-family: var(--sans-display);
    font-weight: 600;
    font-size: 0.94rem;
    color: var(--cyan);
}
.spotlight-body .chat-empty-card p {
    margin: 0;
    font-family: var(--sans-body);
    color: var(--ink-2);
    font-size: 0.86rem;
}

.spotlight-body .chat-message {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.spotlight-body .chat-role {
    flex: 0 0 auto;
    width: 4em;
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-3);
    padding-top: 2px;
}
.spotlight-body .chat-bubble {
    flex: 1 1 auto;
    min-width: 0;
    padding: 10px 12px;
    border: 1px solid var(--hair);
    background: var(--graphite-2);
    font-family: var(--sans-body);
    font-size: 0.9rem;
    line-height: 1.5;
}
.spotlight-body .chat-message.is-assistant .chat-bubble {
    border-color: var(--cyan-edge);
    background: var(--cyan-soft);
}

.spotlight-body .quick-intents-wrap {
    padding: 6px 0 4px;
    background: transparent;
    border-top: 1px solid var(--hair);
    border-bottom: 1px solid var(--hair);
    margin-top: 8px;
}
.spotlight-body .intent-rail-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding: 4px 0;
}
.spotlight-body .intent-rail-label {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-3);
}
.spotlight-body .intent-rail-hint {
    font-family: var(--mono);
    font-size: 0.62rem;
    color: var(--ink-3);
}
.spotlight-body .quick-intents {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    overflow-x: auto;
    padding-bottom: 4px;
}
.spotlight-body .intent-chip {
    padding: 4px 10px;
    border: 1px solid var(--hair);
    background: var(--glass-2);
    color: var(--ink-1);
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    white-space: nowrap;
    border-radius: 0;
}
.spotlight-body .intent-chip:hover {
    color: var(--cyan);
    border-color: var(--cyan-edge);
    background: var(--cyan-soft);
}
.spotlight-body .intent-chip.is-active {
    background: var(--cyan);
    color: var(--graphite-0);
    border-color: var(--cyan);
}

.spotlight-body .proposal-shell {
    overflow-y: auto;
    padding-top: 10px;
    max-height: 30vh;
    border-top: 1px solid var(--hair);
}
.spotlight-body .proposal-card {
    padding: 10px 12px;
    border: 1px solid var(--cyan-edge);
    border-left: 3px solid var(--cyan);
    background: var(--graphite-2);
}
.spotlight-body .proposal-list { display: grid; gap: 6px; margin-top: 8px; }
.spotlight-body .proposal-item {
    padding: 10px 12px;
    border: 1px solid var(--hair);
    background: var(--graphite-3);
}
.spotlight-body .proposal-warnings {
    padding: 10px 12px;
    border-left: 2px solid var(--amber);
    background: var(--amber-soft);
}
.spotlight-body .proposal-warnings h5 {
    margin: 0 0 4px;
    font-family: var(--mono);
    color: var(--amber);
    font-size: 0.74rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.spotlight-body .proposal-warnings ul {
    margin: 0;
    padding-left: 1.2em;
    display: grid;
    gap: 4px;
    font-family: var(--sans-body);
    color: var(--ink-1);
}

.spotlight-body .proposal-json-details {
    margin-top: 8px;
    border: 1px solid var(--hair);
    background: var(--graphite-3);
}
.spotlight-body .proposal-json-summary {
    list-style: none;
    cursor: pointer;
    padding: 6px 10px;
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-3);
}
.spotlight-body .proposal-json-summary::-webkit-details-marker { display: none; }
.spotlight-body .proposal-json-summary::before { content: "+ "; }
.spotlight-body .proposal-json-details[open] .proposal-json-summary::before { content: "− "; }
.spotlight-body .proposal-json-pre {
    margin: 0;
    padding: 8px 10px;
    background: var(--graphite-0);
    font-family: var(--mono);
    font-size: 0.74rem;
    line-height: 1.4;
    max-height: 14em;
    overflow: auto;
    white-space: pre-wrap;
    color: var(--ink-1);
    border-top: 1px solid var(--hair);
}

.spotlight-body .proposal-diff,
.lightbox-body .proposal-diff {
    display: grid;
    gap: 6px;
    margin: 8px 0;
}
.spotlight-body .diff-panel,
.lightbox-body .diff-panel {
    padding: 8px 10px;
    border: 1px solid var(--hair);
    background: var(--graphite-3);
    display: grid;
    gap: 4px;
}
.spotlight-body .diff-field-label,
.lightbox-body .diff-field-label {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--cyan);
}
.spotlight-body .diff-side,
.lightbox-body .diff-side {
    padding: 6px 8px;
    font-family: var(--sans-body);
    font-size: 0.86rem;
    line-height: 1.4;
    white-space: pre-wrap;
}
.spotlight-body .diff-side.diff-before,
.lightbox-body .diff-side.diff-before {
    background: var(--magenta-soft);
    color: var(--ink-2);
    text-decoration: line-through wavy var(--magenta);
    text-decoration-skip-ink: none;
}
.spotlight-body .diff-side.diff-after,
.lightbox-body .diff-side.diff-after {
    background: var(--cyan-soft);
    color: var(--cyan);
}
.spotlight-body .diff-marker,
.lightbox-body .diff-marker {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--ink-3);
    margin-right: 4px;
}

.spotlight-body .chat-composer {
    padding: 10px 0;
    border-top: 1px solid var(--hair);
    background: transparent;
    display: grid;
    gap: 8px;
    margin-top: 8px;
}
.spotlight-body .composer-scope-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 8px;
}
.spotlight-body .composer-scope-block { display: grid; gap: 4px; }
.spotlight-body .composer-prompt-block { display: grid; gap: 4px; }
.spotlight-body .composer-row textarea,
.spotlight-body .studio-textarea,
.spotlight-body .studio-textarea-composer {
    border: 1px solid var(--hair-strong);
    background: var(--graphite-2);
    color: var(--ink-0);
    padding: 8px 10px;
    font-family: var(--sans-body);
    font-size: 0.94rem;
    line-height: 1.5;
    min-height: 90px;
    border-radius: 0;
    resize: vertical;
}
.spotlight-body .composer-row textarea:focus { border-color: var(--cyan); outline: none; }

.spotlight-body .composer-footer-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}
.spotlight-body .composer-intent-readout {
    font-family: var(--mono);
    color: var(--ink-2);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
}
.spotlight-body .composer-intent-readout strong { color: var(--cyan); }
.spotlight-body .composer-hint {
    font-family: var(--mono);
    color: var(--ink-3);
    font-size: 0.7rem;
    letter-spacing: 0.06em;
}

.spotlight-body .thinking-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    background: var(--cyan-soft);
    color: var(--cyan);
    font-family: var(--mono);
    font-size: 0.78rem;
    border: 1px solid var(--cyan-edge);
}
.spotlight-body .thinking-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: currentColor; opacity: 0.5;
    animation: atlas-bob 1.05s infinite ease-in-out;
}
.spotlight-body .thinking-dot:nth-child(2) { animation-delay: 0.16s; }
.spotlight-body .thinking-dot:nth-child(3) { animation-delay: 0.32s; }
@keyframes atlas-bob {
    0%, 80%, 100% { opacity: 0.3; transform: translateY(0); }
    40% { opacity: 1; transform: translateY(-2px); }
}
.spotlight-body .reasoning-badge {
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    padding: 2px 8px;
    border: 1px solid var(--amber-edge);
    color: var(--amber);
}

.spotlight-body .context-pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 6px 10px;
    border: 1px solid var(--hair);
    background: var(--graphite-2);
    align-items: baseline;
}
.spotlight-body .context-pill-prefix,
.spotlight-body .context-pill-kind {
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-3);
}
.spotlight-body .context-pill-kind { color: var(--cyan); }
.spotlight-body .context-pill-label {
    font-family: var(--sans-display);
    font-weight: 600;
    color: var(--ink-0);
    font-size: 0.9rem;
}
.spotlight-body .context-pill-note {
    font-family: var(--sans-body);
    color: var(--ink-2);
    font-size: 0.8rem;
}
.spotlight-body .context-pill-clear {
    margin-left: auto;
    border: 1px solid var(--hair);
    background: transparent;
    padding: 3px 8px;
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-2);
    cursor: pointer;
}
.spotlight-body .context-pill-clear:hover {
    color: var(--magenta);
    border-color: var(--magenta);
}

/* Preview overlay */
.atlas-overlay-preview .overlay-panel { width: min(960px, 100%); max-height: 84vh; }
.atlas-overlay-preview .preview-shell { display: grid; gap: 12px; }
.atlas-overlay-preview .preview-header .section-title-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
}
.atlas-overlay-preview .preview-header h2 {
    margin: 0;
    font-family: var(--sans-display);
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--ink-0);
}
.atlas-overlay-preview .preview-scene {
    padding: 16px 20px 20px;
    border: 1px solid var(--cyan-edge);
    background: var(--graphite-2);
}
.atlas-overlay-preview .preview-scene h3 {
    margin: 0 0 8px;
    font-family: var(--sans-display);
    font-weight: 600;
    color: var(--cyan);
    font-size: 1.2rem;
}
.atlas-overlay-preview .preview-scene p {
    margin: 0 0 10px;
    font-family: var(--sans-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--ink-1);
}
.atlas-overlay-preview .preview-dialogue {
    display: grid;
    gap: 8px;
    margin: 8px 0 14px;
}
.atlas-overlay-preview .preview-dialogue-line {
    padding: 10px 12px;
    border-left: 2px solid var(--cyan);
    background: var(--cyan-soft);
}
.atlas-overlay-preview .preview-dialogue-line strong {
    display: block;
    font-family: var(--mono);
    color: var(--cyan);
    font-size: 0.74rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}
.atlas-overlay-preview .preview-dialogue-line span {
    font-family: var(--sans-body);
    color: var(--ink-1);
    font-size: 0.94rem;
}
.atlas-overlay-preview .preview-choice {
    padding: 10px 12px;
    border: 1px solid var(--hair);
    background: var(--graphite-3);
}

/* =====================================================================
   G0 — Proposals side panel (2026-05-21)
   Dedicated surface for chat-driven proposals. atlas-shell.js teleports
   the brain's `.proposal-shell` into `.proposals-body` whenever a real
   `.proposal-card` is present in `#chat-panel`. Spec:
     - 420px right-docked pane on desktop, full-height
     - Mobile (≤768px): bottom-sheet overlay above the spotlight
     - 44×44 hit targets on accept/reject buttons (override .studio-button)
     - Cyan/amber Atlas HUD tokens — no Hush cream
   ===================================================================== */
.atlas-proposals {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(440px, 100%);
    z-index: 85; /* above spotlight backdrop (80), below toasts (200) */
    display: grid;
    grid-template-columns: 1fr;
    pointer-events: none;
}
.atlas-proposals[hidden] { display: none; }
.atlas-proposals .proposals-backdrop {
    position: fixed;
    inset: 0;
    background: transparent; /* desktop: no scrim — spotlight has its own */
    pointer-events: none;
}
.atlas-proposals .proposals-panel {
    position: relative;
    height: 100%;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    background: linear-gradient(180deg, var(--graphite-2) 0%, var(--graphite-1) 100%);
    border-left: 1px solid var(--amber-edge);
    box-shadow: -1px 0 0 var(--amber-edge),
                -24px 0 60px -16px rgba(0, 0, 0, 0.8),
                0 0 36px var(--amber-soft);
    pointer-events: auto;
    animation: atlas-proposals-enter 280ms ease-out;
}
@keyframes atlas-proposals-enter {
    from { opacity: 0; transform: translateX(12px); }
    to   { opacity: 1; transform: translateX(0); }
}
@media (prefers-reduced-motion: reduce) {
    .atlas-proposals .proposals-panel { animation: none; }
}

.atlas-proposals .proposals-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    column-gap: 12px;
    align-items: start;
    padding: 14px 18px 12px;
    border-bottom: 1px solid var(--hair);
    background: var(--graphite-2);
}
.atlas-proposals .proposals-head-stack { display: grid; gap: 4px; min-width: 0; }
.atlas-proposals .proposals-eyebrow {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--amber);
    text-shadow: 0 0 10px var(--amber-soft);
}
.atlas-proposals .proposals-title {
    margin: 2px 0 0;
    font-family: var(--sans-display);
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--ink-0);
    letter-spacing: 0.02em;
}
.atlas-proposals .proposals-subtitle {
    margin: 0;
    font-family: var(--sans-body);
    font-size: 0.82rem;
    color: var(--ink-2);
    max-width: 38ch;
}
.atlas-proposals .proposals-close {
    /* a11y: ≥44×44 hit target. The icon-button base is 26×26;
       bump for proposals. */
    width: 44px;
    height: 44px;
    font-size: 1.05rem;
}

.atlas-proposals .proposals-body {
    overflow-y: auto;
    padding: 12px 16px 18px;
    min-height: 0;
}

.atlas-proposals .proposals-foot {
    padding: 8px 16px 12px;
    border-top: 1px solid var(--hair);
    background: var(--graphite-2);
    display: flex;
    align-items: center;
    justify-content: flex-end;
}
.atlas-proposals .proposals-foot-hint {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.12em;
    color: var(--ink-3);
    text-transform: uppercase;
}

/* The teleported shell — re-style the brain's proposal markup so it fills
   the side panel instead of inheriting the compact spotlight rules.
   Selector binds to .atlas-proposals-shell (added by atlas-shell.js) so we
   never collide with the spotlight rules at `.spotlight-body .proposal-*`. */
.atlas-proposals-shell {
    display: grid;
    gap: 10px;
}
.atlas-proposals-shell .proposal-card {
    padding: 14px 16px;
    border: 1px solid var(--amber-edge);
    border-left: 4px solid var(--amber);
    background: var(--graphite-2);
    box-shadow: 0 10px 28px -16px rgba(0, 0, 0, 0.6);
    display: grid;
    gap: 10px;
}
.atlas-proposals-shell .section-title-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    gap: 12px;
}
.atlas-proposals-shell .section-title-row h4 {
    margin: 0;
    font-family: var(--sans-display);
    font-weight: 700;
    font-size: 1rem;
    color: var(--amber);
    letter-spacing: 0.01em;
}
.atlas-proposals-shell .proposal-card .field-help {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-3);
}
.atlas-proposals-shell .muted-copy {
    margin: 0;
    font-family: var(--sans-body);
    font-size: 0.88rem;
    color: var(--ink-1);
    line-height: 1.5;
}

/* Per-op list. Each op-row is clickably expandable via its existing
   `<details class="proposal-json-details">` element — the brain already
   ships that. We bump the summary so the disclosure is tap-friendly. */
.atlas-proposals-shell .proposal-list {
    display: grid;
    gap: 10px;
    margin: 4px 0 0;
}
.atlas-proposals-shell .proposal-item {
    padding: 12px 14px;
    border: 1px solid var(--hair-strong);
    background: var(--graphite-3);
    display: grid;
    gap: 8px;
}
.atlas-proposals-shell .proposal-item .choice-card-header {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.atlas-proposals-shell .proposal-op-heading {
    margin: 0;
    font-family: var(--sans-display);
    font-weight: 600;
    font-size: 0.96rem;
    color: var(--ink-0);
    flex: 1 1 auto;
    min-width: 0;
}
.atlas-proposals-shell .tag {
    display: inline-flex;
    padding: 3px 8px;
    border: 1px solid var(--cyan-edge);
    background: var(--cyan-soft);
    color: var(--cyan);
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.atlas-proposals-shell .proposal-warnings {
    padding: 10px 12px;
    border-left: 3px solid var(--magenta);
    background: var(--magenta-soft);
    color: var(--ink-1);
}
.atlas-proposals-shell .proposal-warnings h5 {
    margin: 0 0 4px;
    font-family: var(--mono);
    color: var(--magenta);
    font-size: 0.74rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.atlas-proposals-shell .proposal-warnings ul {
    margin: 0;
    padding-left: 1.2em;
    display: grid;
    gap: 4px;
    font-family: var(--sans-body);
}

/* Per-op JSON disclosure: the brain ships this collapsed by default;
   in the side panel we keep that pattern but make the click target
   tappable (44×40 minimum) and visually obvious. */
.atlas-proposals-shell .proposal-json-details {
    border: 1px solid var(--hair);
    background: var(--graphite-2);
}
.atlas-proposals-shell .proposal-json-summary {
    list-style: none;
    cursor: pointer;
    min-height: 40px;
    padding: 10px 12px;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-2);
    display: flex;
    align-items: center;
}
.atlas-proposals-shell .proposal-json-summary::-webkit-details-marker { display: none; }
.atlas-proposals-shell .proposal-json-summary::before { content: "+ "; margin-right: 6px; color: var(--cyan); }
.atlas-proposals-shell .proposal-json-details[open] .proposal-json-summary::before { content: "− "; }
.atlas-proposals-shell .proposal-json-summary:hover { color: var(--cyan); }
.atlas-proposals-shell .proposal-json-pre {
    margin: 0;
    padding: 10px 12px;
    background: var(--graphite-0);
    font-family: var(--mono);
    font-size: 0.74rem;
    line-height: 1.45;
    max-height: 18em;
    overflow: auto;
    white-space: pre-wrap;
    color: var(--ink-1);
    border-top: 1px solid var(--hair);
}

/* Diff blocks lifted from spotlight (already styled there); replicate
   for the side panel so the visuals don't snap when the proposal moves. */
.atlas-proposals-shell .proposal-diff {
    display: grid;
    gap: 8px;
    margin: 6px 0;
}
.atlas-proposals-shell .diff-panel {
    padding: 10px 12px;
    border: 1px solid var(--hair);
    background: var(--graphite-2);
    display: grid;
    gap: 4px;
}
.atlas-proposals-shell .diff-field-label {
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--cyan);
}
.atlas-proposals-shell .diff-side {
    padding: 6px 8px;
    border: 1px solid var(--hair);
    background: var(--graphite-3);
    color: var(--ink-1);
}
.atlas-proposals-shell .diff-content-preview {
    padding: 8px 10px;
    border: 1px solid var(--hair);
    background: var(--graphite-3);
    color: var(--ink-1);
    font-family: var(--sans-body);
    line-height: 1.5;
}

/* Accept-all + per-op buttons. 44×44 hit targets per WCAG 2.2 + plan. */
.atlas-proposals-shell .proposal-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.atlas-proposals-shell .proposal-actions .studio-button {
    min-height: 44px;
    padding: 0 16px;
    font-size: 0.78rem;
    letter-spacing: 0.14em;
}
.atlas-proposals-shell .proposal-actions .studio-button-primary {
    background: var(--amber);
    color: var(--graphite-0);
    border-color: var(--amber);
}
.atlas-proposals-shell .proposal-actions .studio-button-primary:hover {
    background: var(--cyan);
    color: var(--graphite-0);
    border-color: var(--cyan);
    box-shadow: 0 0 18px var(--cyan-glow);
}
.atlas-proposals-shell .proposal-actions .studio-button-danger:hover {
    background: var(--magenta);
    color: var(--graphite-0);
    border-color: var(--magenta);
    box-shadow: 0 0 16px var(--magenta-soft);
}

/* When proposals are open on desktop, nudge the spotlight panel
   leftward so the two surfaces don't fight for the same pixels.
   The spotlight `place-items: center` grid still applies, but a
   transform offsets the centered panel. */
@media (min-width: 769px) {
    body.atlas[data-atlas-proposals-open="true"] .atlas-overlay-spotlight .spotlight-panel {
        transform: translateX(min(-220px, -16vw));
        transition: transform 200ms ease-out;
    }
    @media (prefers-reduced-motion: reduce) {
        body.atlas[data-atlas-proposals-open="true"] .atlas-overlay-spotlight .spotlight-panel {
            transition: none;
        }
    }
}

/* Mobile: bottom-sheet overlay on top of the spotlight. The brain
   still owns the proposal-shell DOM; we restyle our wrapper. */
@media (max-width: 768px) {
    .atlas-proposals {
        inset: auto 0 0 0;
        width: 100%;
        height: min(72vh, 540px);
        z-index: 95; /* above spotlight (80) on mobile */
    }
    .atlas-proposals .proposals-backdrop {
        background: rgba(5, 7, 9, 0.55);
        pointer-events: auto;
        inset: -100vh 0 0 0; /* extend above the sheet so taps outside dismiss */
    }
    .atlas-proposals .proposals-panel {
        border-left: none;
        border-top: 1px solid var(--amber-edge);
        box-shadow: 0 -1px 0 var(--amber-edge),
                    0 -24px 60px -16px rgba(0, 0, 0, 0.8),
                    0 0 36px var(--amber-soft);
        animation: atlas-proposals-enter-bottom 240ms ease-out;
    }
    @keyframes atlas-proposals-enter-bottom {
        from { opacity: 0; transform: translateY(12px); }
        to   { opacity: 1; transform: translateY(0); }
    }
    /* Don't shift the spotlight on mobile — it stays centered;
       the proposals sheet covers the bottom 72vh instead. */
    body.atlas[data-atlas-proposals-open="true"] .atlas-overlay-spotlight .spotlight-panel {
        transform: none;
    }
}

/* =====================================================================
   Toasts
   ===================================================================== */
.status-toast {
    position: fixed;
    right: 20px;
    bottom: 24px;
    z-index: 200;
    max-width: 360px;
    padding: 10px 14px;
    background: var(--graphite-2);
    border: 1px solid var(--cyan-edge);
    color: var(--ink-0);
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.7), 0 0 20px var(--cyan-soft);
}
.status-toast.is-error { border-color: var(--magenta-edge); box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.7), 0 0 20px var(--magenta-soft); }
.status-toast.is-warning { border-color: var(--amber-edge); box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.7), 0 0 20px var(--amber-soft); }

/* =====================================================================
   Responsive
   ===================================================================== */
@media (max-width: 1100px) {
    body.atlas { --dock-width: 200px; --lightbox-width: min(440px, 60vw); }
    .deck-counters { display: none; }
}

/* Tablet: the dock + inspector are already overlay drawers (see base rules);
   here we just widen the inspector and let the toolbar wrap. */
@media (max-width: 820px) {
    body.atlas { --lightbox-width: min(460px, 92vw); }
    .deck-toolbar { flex-wrap: wrap; }
}

/* Phone: drawers go full-bleed and the deck collapses to a compact bar so the
   canvas owns the screen. Power-user chrome (provider/reasoning selects,
   New/Import/Export/Undo) is tablet/desktop only here — Compose has a FAB and
   Launch/Theme stay. The library link (logo) still reaches everything else. */
@media (max-width: 560px) {
    body.atlas { --dock-width: min(340px, 92vw); --lightbox-width: 100vw; }
    .atlas-frame { overflow-x: hidden; }
    .atlas-deck { padding: 6px 10px 4px; }
    .deck-mark-tail { display: none; }
    .deck-minimap-wrap { display: none; }
    .deck-cluster[data-cluster="press"],
    .deck-cluster[data-cluster="actions"],
    .deck-cluster[data-cluster="stage"] [data-atlas-spotlight-open] { display: none; }
    .deck-band { gap: 8px; flex-wrap: wrap; }
    .deck-shelf { font-size: 0.6rem; gap: 2px; }
    .deck-shelf-link, .deck-shelf-current { padding: 4px 7px; }
    .deck-row { gap: 8px; margin-bottom: 4px; }
    .deck-title-input { width: auto; flex: 1 1 120px; min-width: 0; font-size: 0.98rem; }
    .deck-toolbar { gap: 8px; }
}

/* Touch devices: enlarge tap targets to the 44px WCAG 2.2 minimum. Scoped to
   coarse pointers so mouse/desktop density is untouched. */
@media (pointer: coarse) {
    .atlas-icon-button { width: 44px; height: 44px; font-size: 1rem; }
    .atlas-button { min-height: 44px; }
    .atlas-select { min-height: 44px; }
    .deck-shelf-link, .deck-shelf-current { padding: 8px 10px; }
    .dock-card { min-height: 44px; }
}

/* =====================================================================
   Mobile chat FAB — Wave 4 (2026-05-20).
   The desktop "K · Compose" button lives in the deck-toolbar; on narrow
   viewports (≤768px) the toolbar wraps + that button can scroll out of
   easy thumb reach. This position:fixed FAB gives touch users a stable
   entry to the spotlight chat. Re-uses [data-atlas-spotlight-open] so
   atlas-shell.js bindOverlays() picks it up without JS change.
   Routed deliberately through the spotlight (not the global Cmd+Shift+K
   chat-overlay) because the spotlight modal IS the chat surface on Atlas;
   the global overlay would teleport #chat-panel out of the spotlight and
   break Atlas's modal contract.
   ===================================================================== */
.atlas-mobile-chat-fab {
    display: none;
    position: fixed;
    bottom: calc(env(safe-area-inset-bottom, 0px) + 16px);
    right: 16px;
    z-index: 55;
    min-width: 56px;
    min-height: 56px;
    padding: 0 18px;
    border-radius: 28px;
    border: 1px solid var(--atlas-accent, #4a8a7a);
    background: var(--atlas-accent, #4a8a7a);
    color: #fff;
    font-family: var(--atlas-mono, "IBM Plex Mono", ui-monospace, monospace);
    font-size: 14px;
    letter-spacing: 0.04em;
    box-shadow: 0 8px 22px rgba(20, 30, 28, 0.28);
    cursor: pointer;
    transition: transform 140ms ease-out, box-shadow 140ms ease-out;
}
.atlas-mobile-chat-fab:hover,
.atlas-mobile-chat-fab:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 10px 26px rgba(20, 30, 28, 0.34);
    outline: none;
}
.atlas-mobile-chat-fab:focus-visible {
    outline: 2px solid var(--atlas-accent-strong, #2f6c4d);
    outline-offset: 2px;
}
@media (max-width: 768px) {
    .atlas-mobile-chat-fab { display: inline-flex; align-items: center; justify-content: center; }
}

/* =====================================================================
   Reduced motion
   ===================================================================== */
@media (prefers-reduced-motion: reduce) {
    body.atlas *, body.atlas *::before, body.atlas *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .canvas-edge.is-conditional { animation: none; }
    .atlas-mobile-chat-fab { transition: none; }
}

/* Folio numeral on each scene tile (2026-05-27, ported from Atelier).
   Sits in the tile head before the id; reads as the manuscript running
   order. aria-hidden — the tile already exposes its title/id to AT. */
.canvas-tile-folio {
    font-family: var(--atlas-mono, "JetBrains Mono", ui-monospace, monospace);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--atlas-accent, #5af2e8);
    opacity: 0.85;
    margin-right: 0.4ch;
    min-width: 2.4ch;
}