/* Shared studio shell, controls, and responsive workspace layouts. */
[hidden] { display: none !important; }
.js-only { display: none !important; }
.shell-ready .js-only { display: inline-flex !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--font-highlight); outline-offset: 3px; }
.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 2000; padding: .8rem; background: var(--darker); }
.skip-link:focus { top: .5rem; }
.studio-shell { background: var(--darkest); color: var(--font-base); }
.studio-navigation { position: fixed; inset: 0 auto 0 0; width: var(--sidebar-w); padding: 1.25rem .85rem; background: var(--darker); border-right: 1px solid var(--border-color-subtle); overflow-y: auto; z-index: 1100; display: flex; flex-direction: column; }
.navigation-brand { display: flex; align-items: center; justify-content: space-between; margin: .3rem .3rem 1.5rem; }
.brand { display: flex; align-items: center; gap: .7rem; font-family: 'Beleren', Georgia, serif; color: var(--font-base); font-size: 1.55rem; }
.brand small { display: block; font: .65rem/1.7 system-ui, sans-serif; color: var(--font-base-trans); letter-spacing: .16em; text-transform: uppercase; }
.brand-mark { width: 38px; height: 42px; display: grid; place-items: center; border: 1px solid var(--font-highlight); color: var(--font-highlight); border-radius: 12px 3px; }
.nav-caption { margin: 1.1rem .7rem .35rem; font-size: .63rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; color: var(--font-base-trans); }
.nav-item { display: flex; align-items: center; gap: .75rem; min-height: 44px; padding: .6rem .7rem; border-radius: 6px; color: var(--font-base-trans); font-size: .85rem; border: 1px solid transparent; }
.nav-glyph { display: inline-flex; justify-content: center; width: 20px; flex-shrink: 0; color: var(--font-accent); font-size: 1rem; }
.nav-item:hover, .recent-rooms a:hover { background: var(--surface-hover); color: #fff; }
.nav-item[aria-current], .recent-rooms a[aria-current] { background: var(--accent-surface); border-color: var(--accent-border); color: var(--font-highlight); }
.recent-rooms { border-top: 1px solid var(--border-color-subtle); margin-top: 1rem; }
.recent-rooms a { display: block; min-height: 44px; padding: .65rem .7rem; font-size: .78rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; border-radius: 5px; }
.navigation-utilities { margin-top: auto; padding-top: 1.5rem; }
.navigation-utilities p { margin: .8rem .7rem 0; color: var(--font-base-trans); font-size: .65rem; }
.studio-stage { margin-left: var(--sidebar-w); min-width: 0; }
.nav-collapsed .studio-stage { margin-left: 0; }
.topbar { position: sticky; top: 0; z-index: 100; display: flex; align-items: center; gap: 1rem; min-height: var(--topbar-h); padding: .5rem 1.5rem; background: var(--darkest); border-bottom: 1px solid var(--border-color-subtle); }
.workspace-label { color: var(--font-base-trans); font-size: .8rem; }
.topbar-reference { margin-left: auto; color: var(--font-accent); font-size: .8rem; padding: .75rem 0; }
.shell-button { align-items: center; justify-content: center; gap: .5rem; min-width: 44px; min-height: 44px; padding: .45rem .75rem; background: transparent; border: 1px solid var(--border-color); color: var(--font-base); border-radius: 6px; cursor: pointer; font: inherit; font-size: .8rem; }
.shell-button:hover { background: var(--surface-hover); border-color: var(--font-accent); }
.navigation-brand .drawer-close { display: none !important; }
.content { position: relative; max-width: 1600px; min-width: 0; margin: 0 auto; padding: 32px clamp(20px, 3vw, 48px) 48px; }
.output-body, .candidate-content, .field-body, .chunk-text { max-width: 78ch; }
.footer { padding: 1.1rem 1.5rem; color: var(--font-base-trans); font-size: .68rem; border-top: 1px solid var(--border-color-subtle); }
.drawer-backdrop { position: fixed; inset: 0; z-index: 1000; background: #0009; }
.drawer-open { overflow: hidden; }
.section-tabs { display: flex; gap: .4rem; align-items: center; border-bottom: 1px solid var(--border-color); margin-bottom: 1.5rem; overflow-x: auto; }
.section-tabs a, .section-tabs button { display: inline-flex; flex-shrink: 0; align-items: center; gap: .5rem; min-height: 44px; padding: .6rem .9rem; background: transparent; border: 0; border-bottom: 2px solid transparent; font: inherit; font-size: .82rem; color: var(--font-base-trans); cursor: pointer; }
.section-tabs [aria-current], .section-tabs [aria-selected=true] { color: var(--font-highlight); border-bottom-color: var(--font-highlight); }
.world-tabs { margin-top: -.7rem; }
.workspace-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: .8rem; padding: .6rem 0; font-size: .76rem; }
.workspace-toolbar .authority-note { margin-right: auto; color: var(--font-base-trans); }
.workspace-toolbar a { color: var(--font-accent); }

/* Shared controls and reading surfaces. */
.btn, .btn-small { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 44px; padding: .6rem 1rem; background: var(--control-surface); color: var(--font-base); border: 1px solid var(--control-border); border-radius: var(--radius-sm); font: 600 .88rem/1.4 system-ui, sans-serif; cursor: pointer; text-decoration: none; box-shadow: none; }
.btn:hover, .btn-small:hover { background: var(--control-hover); border-color: var(--font-highlight); color: #fff; }
.btn-small { padding: .45rem .7rem; font-size: .78rem; background: var(--surface-hover); color: var(--font-base); border-color: var(--border-color); }
.btn:disabled, .btn-small:disabled, .btn.disabled { opacity: .5; cursor: not-allowed; }
.btn-ghost { display: inline-flex; align-items: center; min-height: 44px; padding: .5rem .7rem; color: var(--font-accent); }
.btn-ghost:hover { color: #fff; }
.btn-accept { color: var(--font-base); border-color: var(--green); background: var(--green-trans); }
.btn-danger { color: var(--font-base); border-color: var(--red); background: var(--red-trans); }
.btn-revise { color: var(--font-highlight); }
.content h1 { color: var(--font-base); text-transform: none; letter-spacing: .015em; font-size: clamp(1.6rem, 2.5vw, 2.25rem); line-height: 1.25; overflow-wrap: anywhere; }
.content h2, .content h3 { color: var(--font-base); letter-spacing: .01em; }
.content :is(input:not([type=checkbox]):not([type=radio]):not([type=hidden]), select, textarea) { max-width: 100%; min-width: 0; border-radius: 6px; background: var(--darkest); color: var(--font-base); border: 1px solid var(--border-color); padding: .65rem .75rem; font-family: inherit; }
.content :is(input:not([type=checkbox]):not([type=radio]):not([type=hidden]), select) { min-height: 44px; }
.content textarea { line-height: 1.65; }
.content input::placeholder, .content textarea::placeholder { color: var(--font-base-trans); opacity: 1; }
.content :is(input, select, textarea):focus-visible { outline: 2px solid var(--font-highlight); outline-offset: 2px; box-shadow: none; }
.content :is(button, summary) { min-height: 44px; }
.content summary { cursor: pointer; padding-block: .65rem; }
.content :is(.panel, .mcard, .pcard, .type-card, .package-card, .proposal-block, .login-panel, .stat, .region-card) { background: var(--darker); box-shadow: none; }
.content :is(.mcard, .pcard, .type-card, .package-card, .stat):hover { transform: none; box-shadow: none; }
.content .page-head { margin-bottom: 1.2rem; }
.content .lede { color: var(--font-base-trans); line-height: 1.7; font-size: .98rem; }
.content .markdown-body, .content .candidate-content, .content .field-body { line-height: 1.75; overflow-wrap: anywhere; }
.content :is(pre, .packet-body) { max-width: 100%; overflow: auto; }
.content :is(.form-actions, .run-actions) { flex-wrap: wrap; }

/* A conversation uses the viewport; only its transcript and inspector scroll. */
.content--room { max-width: none; height: calc(100dvh - var(--topbar-h)); padding: 1rem 1.5rem; display: flex; flex-direction: column; }
.content--room .flashes { flex: 0 0 auto; margin-bottom: .5rem; }
.chat-room { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.chat-room > .crumb { font-size: .7rem; margin-bottom: .4rem; }
.chat-room > .page-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; margin-bottom: 0; gap: .4rem .7rem; }
.chat-room #token-estimate { grid-row: 2; font-size: .7rem; }
.chat-room .chat-rename { grid-column: 2; grid-row: 1 / 3; }
.chat-room h1 { font-size: 1.5rem; margin: 0; }
body:has(.content--room) .footer { display: none; }
.chat-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 1.25rem; min-height: 0; flex: 1; }
.chat-grid.inspector-collapsed { grid-template-columns: minmax(0, 1fr); }
.chat-main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.chat-inspector { min-width: 0; overflow-y: auto; background: var(--darker); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 1rem; }
.inspector-heading { display: flex; justify-content: space-between; align-items: center; gap: .5rem; }
.shell-ready .inspector-tabs { display: flex !important; }
.participant-settings { margin: .7rem 0; }
.participant-settings summary { display: flex; flex-wrap: wrap; gap: .35rem; justify-content: space-between; align-items: center; color: var(--font-accent); font-size: .78rem; }
.participant-settings summary::before { content: '+ '; }
.participant-settings[open] summary::before { content: '− '; }
.chat-main > .chronicle, .chat-main > .chronicle-banner { flex-shrink: 0; max-height: 30vh; overflow: auto; }
.chat-transcript { flex: 1; min-height: 12rem; overflow-y: auto; overscroll-behavior: contain; padding: 1.5rem clamp(.75rem, 2vw, 2rem); border: 1px solid var(--border-color-subtle); border-radius: var(--radius-md); background: var(--darker); }
.chat-input { flex-shrink: 0; background: var(--darker); padding: .8rem; border: 1px solid var(--border-color); border-radius: var(--radius-md); }
.chat-input textarea { min-height: 64px; }
.chat-input-row { gap: .4rem .8rem; }
.chat-input-row label { flex: 1 1 9rem; }
.turn-strip { background: none; border: 0; padding: 0; }
.turn-strip > .meta-line { flex-basis: 100%; font-size: .65rem; }
.turn-chip { min-height: 44px; max-width: 100%; }
.turn-chip.is-queued { background: var(--accent-surface); border-color: var(--accent-border); }
.msg { padding: .9rem 1rem; margin: 0 auto 1rem; max-width: 78ch; }
.msg-head { flex-wrap: wrap; }
.msg-head strong { color: var(--font-base); }
.msg-body { line-height: 1.75; overflow-wrap: anywhere; }
.msg-body table { display: block; overflow-x: auto; }
.msg-user { background: var(--surface-hover); border-radius: 6px; }
.msg-persona { border-left-color: var(--font-accent); }
.chat-welcome { text-align: center; margin: auto; padding: 3rem 0; max-width: 44ch; line-height: 1.8; }
.chat-welcome strong { display: inline-block; font: 1.5rem/1.4 'Beleren', Georgia, serif; color: var(--font-base); margin-bottom: 1rem; }
.distill-bar { flex-shrink: 0; flex-wrap: wrap; max-height: 35vh; overflow-y: auto; }
.chat-lore { background: none; border: 0; padding: 0; }
.pin-chip, .tree-node { flex-wrap: wrap; }
.pin-name { overflow-wrap: anywhere; }
.tree-actions { display: flex; flex-wrap: wrap; }
.tree-actions, .tree-node:hover .tree-actions { opacity: 1; }
.msg-pick { opacity: .8; min-width: 44px; }
.tree-actions .pin-btn, .pin-chip .pin-btn { min-width: 44px; }

/* Return to writing from a useful, quiet opening screen. */
.chat-index { max-width: 1000px; margin: 0 auto; }
.room-index-head { padding: clamp(1rem, 4vw, 3.5rem) 0 1.5rem; }
.room-index-head h1 { font-size: clamp(2.2rem, 4vw, 3.4rem); }
.chat-index .chat-new { display: block; padding: 1.5rem; margin: 0 0 2.5rem; }
.chat-new > label { display: block; margin-bottom: .8rem; font-size: .9rem; font-weight: 600; color: var(--font-base); }
.new-room-fields { display: flex; gap: .7rem; }
.new-room-fields input { flex: 1; }
.chat-new .note { font-size: .75rem; margin: .75rem 0 0; }
.chat-list { list-style: none; padding: 0; }
.chat-list li { display: block; border-bottom: 1px solid var(--border-color-subtle); padding: 0; }
.chat-list li > a { display: flex; align-items: center; gap: 1rem; padding: 1.15rem .5rem; color: var(--font-base); }
.chat-list li > a:hover { background: var(--surface-hover); }
.room-symbol { color: var(--font-highlight); font-size: 1.3rem; }
.room-list-copy { flex: 1; min-width: 0; }
.room-list-copy strong { display: block; overflow-wrap: anywhere; margin-bottom: .25rem; }
.room-list-copy .meta-line { font-size: .75rem; font-weight: 400; }
.room-alternatives { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; margin-top: 2rem; padding-top: 1.2rem; border-top: 1px solid var(--border-color); }
.room-alternatives a { display: inline-flex; align-items: center; min-height: 44px; font-size: .8rem; color: var(--font-accent); }

/* Supporting tools share reading, setup, and review patterns. */
.form-section { border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 1.25rem; margin: 1.5rem 0; min-width: 0; background: var(--darker); }
.form-section legend { padding: 0 .5rem; font-size: .8rem; color: var(--font-highlight); }
.workflow-steps { display: flex; flex-wrap: wrap; gap: .7rem 1.5rem; list-style: none; padding: .8rem 0; margin: 0 0 1rem; border-bottom: 1px solid var(--border-color); color: var(--font-base-trans); font-size: .78rem; }
.workflow-steps [aria-current] { color: var(--font-highlight); }
.write-editor .write-shell { grid-template-columns: minmax(0, 1fr) 290px; }
.write-editor .chapter-disclosure { grid-column: 1 / -1; }
.chapter-disclosure > summary, .writing-tools > summary { color: var(--font-accent); }
.chapter-disclosure .write-sidebar { position: static; }
.write-editor .write-main { max-width: 85ch; width: 100%; margin-inline: auto; }
.write-editor .write-textarea { min-height: 60vh; font: 1rem/1.85 Georgia, serif; background: var(--darker); padding: clamp(1rem, 2.5vw, 2rem); }
.write-save-bar { position: sticky; bottom: 0; padding: .8rem 0; display: flex; align-items: center; gap: 1rem; background: var(--darkest); }
.write-save-bar [role=status] { color: var(--font-base-trans); font-size: .8rem; }
.write-editor .write-suggest-col { top: calc(var(--topbar-h) + 1rem); }
.package-tabs { background: var(--darker); border-radius: 6px; }
.package-tabs a { display: inline-flex; align-items: center; min-height: 44px; }
.package-tabs a.active { background: var(--accent-surface); color: var(--font-highlight); }
.candidate-workspace { grid-template-columns: 220px minmax(0,1fr) 275px; }
.package-bulk-review { background: transparent; }
.package-main .view-heading > p { max-width: 32ch; }
.geo-layout { grid-template-columns: minmax(0, 1fr) 260px; }
.nixxia-map { height: max(420px, calc(100dvh - 260px)); }
.region-list { max-height: calc(100dvh - 260px); overflow: auto; }
.content .scriptorium-tabs a { display: inline-flex; align-items: center; min-height: 44px; }
.portal-stats { opacity: .85; }
.portal-head .lede { max-width: 62ch; }
.health { max-width: 1000px; }
@media (max-width: 1399px) {
  .candidate-workspace { grid-template-columns: 210px minmax(0,1fr); }
  .item-inspector { position: static; grid-column: 1 / -1; max-height: none; }
  .candidate-filters { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .write-editor .write-shell { grid-template-columns: minmax(0,1fr); }
  .write-editor .write-suggest-col { position: static; max-height: none; }
}
@media (max-width: 1199px) {
  .studio-stage { margin-left: 0; }
  .studio-shell:not(.shell-ready) .studio-navigation { position: static; width: 100%; }
  .shell-ready .navigation-brand .drawer-close { display: inline-flex !important; }
  .shell-ready .studio-navigation { width: min(300px, 90vw); }
  .chat-grid { grid-template-columns: minmax(0,1fr); }
  .shell-ready .chat-inspector { position: fixed; inset: 0 0 0 auto; width: min(380px, 94vw); z-index: 1100; border-radius: 0; }
  .studio-shell:not(.shell-ready) .content--room { height: auto; }
  .studio-shell:not(.shell-ready) .chat-transcript { max-height: 60vh; }
}
@media (max-width: 767px) {
  .topbar { padding: .4rem .8rem; gap: .6rem; }
  .topbar .shell-button span { display: none; }
  .workspace-label, .topbar-reference { font-size: .72rem; }
  .content { padding: 1.1rem 1rem 2rem; }
  .content--room { padding: .6rem .65rem; }
  .chat-room > .page-head { gap: .4rem; }
  .chat-room h1 { font-size: 1.2rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
  .chat-room > .page-head > div { min-width: 0; }
  .room-member-count { display: none; }
  .chat-room #token-estimate { display: none; }
  .workspace-toolbar { font-size: .7rem; gap: .4rem; }
  .workspace-toolbar .shell-button { margin-left: auto; }
  .chat-transcript { min-height: 8rem; padding: .7rem; }
  .chat-input { padding: .55rem; }
  .chat-input-row label { flex: 1 1 40%; display: flex; flex-direction: column; align-items: stretch; }
  .chat-input-row #send-btn { width: 100%; }
  .turn-strip { max-height: 108px; overflow-y: auto; }
  .turn-strip > .meta-line { font-size: .6rem; }
  .msg { padding: .65rem; }
  .new-room-fields { flex-direction: column; }
  .chat-index .chat-new { padding: 1rem; }
  .room-index-head { padding-top: 1rem; }
  .room-list-copy .meta-line { font-size: .7rem; }
  .content :is(.form-row, .forge-lanes, .candidate-filters, .package-bulk-review, .candidate-workspace, .geo-layout) { display: grid; grid-template-columns: minmax(0,1fr); }
  .content .package-grid { grid-template-columns: minmax(0,1fr); }
  .package-sidebar { position: static; max-height: none; }
  .package-item-list { max-height: 250px; overflow: auto; }
  .package-hero { gap: 1rem; }
  .package-tabs { margin-inline: -1rem; border-radius: 0; }
  .form-section { padding: .8rem; }
  .nixxia-map { height: 60dvh; min-height: 340px; }
  .region-list { max-height: 340px; }
  .content .scriptorium-search { grid-template-columns: minmax(0,1fr); }
  .content .scriptorium-nudge { flex-wrap: wrap; }
  .content .grammar-facts { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .content .entity-kv { grid-template-columns: minmax(0,1fr); }
  .content table.sources { display: block; overflow-x: auto; }
  .content :is(.page-head, .view-heading, .portal-head) { gap: .8rem; }
  .write-save-bar { padding-bottom: max(.8rem, env(safe-area-inset-bottom)); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}