/* ============================================================================
 * screens.css — app shell, shared components and the index screens
 * (Drawings · Crane · File · Manuals · Search · Settings). Also loaded by the
 * sheet viewer. Loaded after styles.css (tokens + base); styles/chat.css and
 * styles/trace.css load after it.
 *
 * Contract: compose the tokens from styles.css — never redeclare them here.
 * No font-size below 12px, dvh units only (never plain vh), nothing hides a safety line.
 * Amber = action only. Green = verified/ok only. Red = danger only.
 *
 *   1. Base extras (hidden, sr-only, type utilities, selection)
 *   2. Chrome (topbar, drawer, toast, update banner, search overlay)
 *   3. Layout rhythm
 *   4. Surfaces (cards, list rows, tiles, section heads, badges)
 *   5. Controls (chips, buttons, segmented, inputs, sheets, switches,
 *      skeleton, empty state, hero, plate)
 *   6. Motion
 *   7. Screens (hero, home, crane, file register, manuals, search, settings)
 *   8. Glass: translucent chrome only
 *   9. Modes (big type, high contrast, OS contrast, reduced motion)
 *  10. Responsive (320 · short/landscape · tablet · desktop · hover)
 * ==========================================================================*/

/* =========================================================== 1. BASE EXTRAS */
/* Class rules like .linkbtn{display:block} beat the UA [hidden] rule, so
 * hidden affordances were rendering. Enforce the attribute. */
[hidden]{display:none!important}
.sr-only{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;
  border:0;font-size:12px}
/* Native-surface mechanics: a downward drag at the top of a thread must not
 * pull-to-refresh the app; manipulation removes the double-tap-zoom delay. */
html,body{overscroll-behavior-y:contain}
body{background:var(--bg);color:var(--txt);font-size:15px;line-height:var(--lh-body);
  letter-spacing:-.003em;touch-action:manipulation}
/* Engineer-read values: counts, sheet numbers, ratings, device tags. */
.tabular,.num,[data-num]{font-variant-numeric:tabular-nums}
.mono,.tag,.ref,.cite,code,kbd,samp{font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.sub{font-size:13px;line-height:18px;color:var(--mut)}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:var(--r-xs)}
::selection{background:var(--acc-weak);color:var(--txt)}

/* ================================================================ 2. CHROME */
/* Header: ☰ · crane switcher (the title) · new chat. */
#topbar{position:sticky;top:0;z-index:10;display:flex;flex-wrap:wrap;align-items:center;gap:var(--s1);
  min-height:var(--topbar-h);
  padding:calc(4px + env(safe-area-inset-top)) var(--s3) 4px;
  background:var(--surface);border-bottom:1px solid var(--hair)}
#crumb{font-size:17px;line-height:22px;font-weight:600;letter-spacing:-.015em;
  flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:opacity var(--dur-2) var(--ease-out)}
#crumb:focus{outline:none}
/* Large-title pattern: the big title scrolls away, the bar title fades in.
 * `html.lts` is set by the shell; without JS the crumb simply stays visible. */
html.lts:not(.scrolled) #crumb{opacity:0}
body.inchat #crumb{opacity:1}
/* Bare 44pt glyph buttons (the viewer's back chevron and menu rows included). */
#back,#themebtn{flex:none;min-width:44px;min-height:44px;padding:0;
  display:flex;align-items:center;justify-content:center;
  background:transparent;border:0;border-radius:var(--r-sm);
  color:var(--txt);font-size:19px;line-height:1;cursor:pointer;
  transition:transform var(--dur-1) var(--spring),background var(--dur-1) var(--ease)}
#back svg,#themebtn svg{width:22px;height:22px}
#back{color:var(--acc-ink)}
#back:active,#themebtn:active{transform:scale(.97);background:var(--surface-2)}
#drawerbtn,#newchat{flex:none;min-width:44px;min-height:44px;padding:0;
  display:flex;align-items:center;justify-content:center;
  background:transparent;border:0;border-radius:var(--r-sm);color:var(--txt);cursor:pointer;
  transition:transform var(--dur-1) var(--spring),background var(--dur-1) var(--ease)}
#drawerbtn svg,#newchat svg{width:22px;height:22px}
#drawerbtn:active,#newchat:active{transform:scale(.97);background:var(--surface-2)}
/* The crane switcher IS the title on a chat route; the crumb stays as the screen-reader
 * name of the screen but leaves the layout. */
#craneswitch{flex:1 1 auto;min-width:0;min-height:44px;margin:0;padding:0 var(--s2);
  display:flex;align-items:center;justify-content:center;gap:4px;
  background:transparent;border:0;border-radius:var(--r-sm);color:var(--txt);cursor:pointer;
  font-family:var(--f-mono);font-size:17px;line-height:22px;font-weight:700;letter-spacing:-.01em;
  font-variant-numeric:tabular-nums}
#craneswitch svg{flex:none;width:16px;height:16px;color:var(--mut)}
#craneswitch:active{background:var(--surface-2)}
#craneswitch.warn #craneswitch-t{text-decoration:underline dotted;text-underline-offset:4px}
#topbar:has(#craneswitch:not([hidden])) #crumb{position:absolute;width:1px;height:1px;
  overflow:hidden;clip-path:inset(50%);white-space:nowrap;flex:none}
/* Thin offline bar: part of the header (so it never covers content), shown only offline. */
#offbar{flex:1 0 100%;order:10;box-sizing:border-box;height:22px;margin:2px calc(-1 * var(--s3)) -4px;
  padding:3px var(--s3);font-size:12px;line-height:16px;font-weight:600;text-align:center;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  color:var(--danger-ink);background:color-mix(in srgb,var(--danger) 10%,var(--surface))}
/* Viewer offline dot: only rendered when OFFLINE — a permanent green light is noise. */
#netdot{display:none;width:9px;height:9px;border-radius:50%;flex:none;
  background:var(--danger);box-shadow:0 0 0 3px color-mix(in srgb,var(--danger) 18%,transparent)}
#netdot.off{display:block}

/* The ☰ drawer: history + Drawings · Trace · Settings. Above the scrim (55). */
#drawer{position:fixed;top:0;bottom:0;left:0;z-index:60;width:min(86vw,340px);
  box-sizing:border-box;overflow-y:auto;overscroll-behavior:contain;
  background:var(--surface);border-right:1px solid var(--hair);box-shadow:var(--e3);
  padding:calc(var(--s3) + env(safe-area-inset-top)) 0 calc(var(--s4) + env(safe-area-inset-bottom));
  animation:drawer-in var(--dur-2) var(--ease-out)}
@keyframes drawer-in{from{transform:translateX(-100%)}to{transform:none}}
#drawer .drnav{display:flex;flex-direction:column;gap:2px;padding:0 var(--s2) var(--s3);
  border-bottom:1px solid var(--hair)}
#drawer .drnav a{display:flex;align-items:center;gap:var(--s3);min-height:48px;padding:0 var(--s3);
  border-radius:var(--r-sm);color:var(--txt);text-decoration:none;font-size:17px;font-weight:600}
#drawer .drnav a svg{flex:none;width:22px;height:22px;color:var(--mut)}
#drawer .drnav a[aria-current="page"]{background:var(--surface-2);color:var(--acc-ink)}
#drawer .drnav a[aria-current="page"] svg{color:var(--acc-ink)}
#drawer .drnav a:active{background:var(--surface-2)}
#drawer .drsec{margin:var(--s4) var(--s4) var(--s2)}
#drawer .drempty{margin:0 var(--s4);font-size:15px;color:var(--mut)}
#drawer .empty{margin:var(--s2) var(--s4)}

/* Toast (with optional action buttons). */
#toast{position:fixed;left:50%;transform:translateX(-50%) translateY(16px);
  bottom:calc(var(--tabbar-h) + var(--s5) + env(safe-area-inset-bottom));
  background:var(--txt);color:var(--bg);
  border:0;padding:12px 18px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;opacity:0;pointer-events:none;max-width:92vw;
  box-shadow:var(--e3);z-index:45;
  transition:opacity var(--dur-2) var(--ease-out),transform var(--dur-2) var(--ease-out)}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
#toast.has-actions{pointer-events:auto;display:flex;align-items:center;gap:var(--s3);
  border-radius:var(--r-m);max-width:92vw}
#toast.has-actions .toastmsg{flex:1;min-width:0}
.toastbtn{flex:none;background:var(--acc);color:var(--acc-t);border:1px solid transparent;
  border-radius:var(--r-sm);font-weight:700;font-size:15px;
  min-height:44px;min-width:64px;padding:10px 16px;cursor:pointer}
body.inchat #toast{bottom:calc(var(--dock-h) + var(--s4) + env(safe-area-inset-bottom))}

/* Update banner: in flow UNDER the chrome, so it never covers the topbar.
 * Colours are theme tokens (--reload-*). */
#reloadbar{position:sticky;top:calc(var(--topbar-h) + env(safe-area-inset-top));left:0;right:0;z-index:9;
  display:flex;gap:var(--s2);align-items:center;justify-content:center;
  background:var(--reload-bg);color:var(--reload-ink);
  border-bottom:1px solid var(--reload-edge);
  font-size:13px;line-height:18px;font-weight:600;
  padding:var(--s2) var(--gutter)}
#reloadbar button{background:var(--reload-btn);color:var(--reload-ink);
  border:1px solid var(--reload-btn-edge);border-radius:var(--r-sm);
  font-weight:700;font-size:13px;padding:0 var(--s3);min-height:44px;cursor:pointer;
  transition:transform var(--dur-1) var(--spring)}
#reloadbar button:active{transform:scale(.97)}
#reloadbar button:last-child{background:transparent;border-color:transparent;
  padding:0 var(--s2);min-width:44px}

/* Search suggestion dropdown (anchored under the search field). */
.qoverlay{position:absolute;top:calc(100% + 4px);left:0;right:0;z-index:6;
  max-height:52vh;max-height:52dvh;overflow:auto;
  background:var(--surface);border:1px solid var(--hair);border-radius:var(--r-md);
  box-shadow:var(--e3);padding:10px var(--s3)}
.ovsec{font-size:12px;line-height:16px;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--mut);margin:var(--s3) 0 var(--s2)}
.ovsec:first-child{margin-top:0}
.ovhead{display:flex;align-items:center;justify-content:space-between;gap:var(--s2)}
.ovhead .ovsec{margin:0}
.ovhead .chip{min-height:44px;padding:6px var(--s3)}
#qclose{min-width:44px;min-height:44px;border-radius:50%;border:1px solid var(--line);
  background:var(--surface-2);color:var(--txt);font-size:18px}

/* ========================================================= 3. LAYOUT RHYTHM */
/* One gutter, one vertical rhythm, no 2px drift. */
#view{padding:var(--s3) var(--gutter) 0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:var(--s3)}
.hint,footer.note{font-size:13px;line-height:18px;color:var(--mut);margin:var(--s2) 0}
footer.note{margin:var(--s5) 0}
.biglink{display:inline-block;min-height:44px;padding:12px 0;color:var(--txt);font-weight:600;
  text-decoration:underline;text-decoration-color:var(--hair-2);text-underline-offset:2px}
/* Clearance so the last row never sits under the screen edge. */
.scr-pad{height:calc(var(--tap) + var(--s5))}
#installhint{background:var(--surface-2);border:0;border-radius:var(--r-card);
  padding:10px 6px 10px var(--s4);display:flex;align-items:center;gap:var(--s1);
  margin:0 0 var(--s3)}
#installhint .insttxt{flex:1;min-width:0}
#installhint b{font-size:15px;font-weight:600;display:block}
#installhint small{font-size:13px;color:var(--mut);margin-top:1px;display:block;line-height:1.35}
#installhint .btn{display:inline-block;width:auto;min-height:44px;padding:10px 20px;
  margin:var(--sp3) 0 0;font-size:var(--fs-15);font-weight:600}
#installhint .instx{min-width:44px;min-height:44px;border:0;background:transparent;
  color:var(--mut);font-size:17px;line-height:1;border-radius:50%;flex:none;padding:0;
  cursor:pointer}
#installhint .instx:active{background:var(--surface-3)}

/* ============================================================== 4. SURFACES */
.card,.result{display:block;position:relative;
  background:var(--surface);border:1px solid var(--hair);border-radius:var(--r-card);
  box-shadow:var(--e1);color:var(--txt);text-decoration:none;
  transition:transform var(--dur-1) var(--spring),box-shadow var(--dur-2) var(--ease-out),
    background var(--dur-1) var(--ease)}
.card:active,.result:active{transform:scale(.98);box-shadow:var(--e2)}
.card{padding:var(--s4);min-height:0}
.card b{font-size:20px;line-height:26px;font-weight:700;display:block;letter-spacing:-.02em;
  overflow-wrap:anywhere}
.card small{color:var(--mut);display:block;margin-top:var(--s1);font-size:13px;line-height:18px;
  font-variant-numeric:tabular-nums;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.result{margin:0 0 var(--s2)}
.result .t{font-size:15px;line-height:22px;font-weight:600}
.result .m{color:var(--mut);font-size:13px;line-height:18px;margin-top:2px;
  font-family:var(--f-mono);font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.result .s{color:var(--mut);font-size:13px;line-height:18px;margin-top:6px;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.result .tag{display:inline-block;background:transparent;border:0;padding:0;margin-right:var(--s2);
  border-radius:var(--r-xs);color:var(--mut);font-family:var(--f-mono);font-variant-numeric:tabular-nums;
  font-size:12px;font-weight:600;letter-spacing:.02em}
.result.sk{pointer-events:none}

/* Inset list rows: one rhythm, hairline separators, no card-in-card. */
.file,.sheetrow,.hrow,.chatrow{display:flex;align-items:center;gap:var(--s3);
  background:transparent;border:0;border-bottom:1px solid var(--hair);border-radius:0;
  padding:12px 0;margin:0;min-height:56px;color:var(--txt);text-decoration:none;
  transition:background var(--dur-1) var(--ease)}
.file:first-of-type,.sheetrow:first-of-type,.hrow:first-of-type,.chatrow:first-child{
  border-top:1px solid var(--hair)}
.file:active,.sheetrow:active,.hrow:active,.chatrow:active{background:var(--surface-2)}
.hrow{align-items:baseline;font-size:15px;line-height:22px;padding:10px 0}
.file .n{background:transparent;color:var(--mut);font-weight:600;border:0;border-radius:8px;
  min-width:36px;height:36px;flex:none;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-variant-numeric:tabular-nums}
.file .n svg{width:20px;height:20px;display:block}
.file b{font-size:15px;line-height:22px;font-weight:600;display:block}
.file small{color:var(--mut);font-size:13px;line-height:18px}
.file::after,.sheetrow::after{content:"\203A";color:var(--dim);font-size:20px;line-height:1;flex:none}
/* Manuals "Save": a quiet ink label, not a bordered pill fighting the title. */
.file .pg{margin-left:auto;color:var(--mut);font-size:13px;flex:none;
  font-variant-numeric:tabular-nums}
.file .pg .btn{width:auto;min-height:44px;min-width:44px;padding:0 var(--s2);margin:0;
  background:transparent;border:0;border-radius:var(--r-sm);color:var(--txt);
  font-size:15px;font-weight:600;box-shadow:none}
.file .pg .btn:active{background:var(--surface-2);transform:scale(.97)}
.sheetrow{align-items:flex-start}
.sheetrow small{display:block;color:var(--mut);font-size:13px;line-height:18px;margin-top:1px;
  font-variant-numeric:tabular-nums;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sheetrow .p,.hrow .p{color:var(--mut);font-weight:600;flex:none;min-width:46px;
  font-size:13px;line-height:18px;font-family:var(--f-mono);
  font-variant-numeric:tabular-nums}
.sheetrow .t{font-size:15px;line-height:22px;min-width:0}
.sheetrow .p,.sheetrow .t,.sheetrow .tag{display:none}

/* .tile — crane tile: mono code, tabular meta, foot badge + offline ring. */
.tile{position:relative;display:flex;flex-direction:column;gap:var(--s1);
  min-height:96px;padding:var(--s4);
  background:var(--surface);border:1px solid var(--hair);border-radius:var(--r-md);
  box-shadow:var(--e1);color:var(--txt);text-decoration:none;
  transition:transform var(--dur-1) var(--spring),box-shadow var(--dur-2) var(--ease-out)}
.tile:active{transform:scale(.98);box-shadow:var(--e2)}
.tile .code{font-family:var(--f-mono);font-variant-numeric:tabular-nums;
  font-size:28px;line-height:34px;font-weight:700;letter-spacing:-.02em}
.tile .meta{font-size:13px;line-height:18px;color:var(--mut);
  font-variant-numeric:tabular-nums}
.tile .foot{display:flex;align-items:center;gap:var(--s2);margin-top:auto}
.tile .ring{position:absolute;width:10px;height:10px;
  border-radius:50%;border:2px solid var(--n-300)}
.tile .ring.on{border-color:var(--ok)}

/* .row — inset list row >=52px (leading mono index, title, sub, chevron).
 * A `.row` holding buttons is a flex BUTTON row; :has() restores it. */
.row{display:flex;align-items:center;gap:var(--s3);min-height:52px;padding:10px 0;
  border-bottom:1px solid var(--hair);color:var(--txt);text-decoration:none}
.row:last-child{border-bottom:0}
.row .idx{flex:none;min-width:44px;color:var(--mut);font-family:var(--f-mono);
  font-variant-numeric:tabular-nums;font-size:13px;font-weight:600}
.row .rtxt{flex:1;min-width:0}
.row .rtxt b{display:block;font-size:17px;line-height:22px;font-weight:600;
  letter-spacing:-.015em}
.row .rtxt small{display:block;color:var(--mut);font-size:13px;line-height:18px;margin-top:1px}
.row .chev{flex:none;color:var(--dim);font-size:20px;line-height:1}
.row:has(>.btn){border-bottom:0;padding:0;min-height:0;gap:var(--s2)}
.row .btn,.row>.btn{flex:1}

/* .sec / .sechead — 12/600 uppercase mut, one gutter, no 2px drift. */
.sec,.sechead{font-size:12px;line-height:16px;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--mut);margin:var(--s5) 0 var(--s2);padding:0}
.sec:first-child,.sechead:first-child{margin-top:var(--s2)}
.sechead{position:sticky;top:calc(var(--topbar-h) + env(safe-area-inset-top));z-index:4;background:var(--bg)}

/* .badge — 12/600 tinted pill (ok / warn / muted). */
.badge{display:inline-flex;align-items:center;gap:4px;min-height:22px;padding:0 8px;
  margin-top:var(--s2);border:1px solid transparent;border-radius:var(--r-pill);
  font-size:12px;line-height:16px;font-weight:600;letter-spacing:.005em;
  background:var(--surface-2);color:var(--mut)}
.badge.ok{background:color-mix(in srgb,var(--ok) 12%,var(--surface));color:var(--ok-ink)}
.badge.ok::before{content:"\2713";font-size:12px;color:var(--ok-ink)}
.badge.warn{background:color-mix(in srgb,var(--warn) 14%,var(--surface));color:var(--warn-ink)}
.badge.warn::before{content:"!";display:inline-flex;align-items:center;justify-content:center;
  width:14px;height:14px;border-radius:50%;background:var(--warn);color:var(--n-0);
  font-size:12px;font-weight:700;line-height:1}
.badge.dim{background:var(--surface-2);color:var(--mut)}
.card .badge .dim{color:var(--mut);font-weight:600}
.badges{display:flex;flex-wrap:wrap;gap:6px;margin:var(--s3) 0 var(--s1);align-items:center;
  font-variant-numeric:tabular-nums}
.badges .badge{margin-top:0}
.qpill{display:inline-block;background:var(--acc-weak);color:var(--acc-ink);
  border-radius:var(--r-xs);padding:1px 6px;font-size:12px;font-weight:600;white-space:nowrap}

/* ============================================================== 5. CONTROLS */
/* .chip — pill, surface-2, active = accent-weak + accent-ink. 44px tap floor. */
.chip{flex:0 1 auto;max-width:100%;min-width:44px;min-height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface-2);border:1px solid var(--hair);color:var(--txt);
  border-radius:var(--r-pill);font-size:15px;line-height:22px;font-weight:600;
  padding:8px 14px;cursor:pointer;white-space:normal;overflow-wrap:anywhere;
  transition:transform var(--dur-1) var(--spring),background var(--dur-1) var(--ease),
    color var(--dur-1) var(--ease)}
.chips{display:flex;flex-wrap:wrap;gap:var(--s2);margin:var(--s2) 0}
.chips .chip{text-align:left}
.chip:active{transform:scale(.97)}
.chip[aria-pressed="true"],.chip.on{background:var(--acc-weak);border-color:var(--acc);
  color:var(--acc-ink)}

/* .btn — one geometry (48px, r-sm), one ladder. Amber buttons keep --acc-t ink
 * in BOTH themes (--txt is near-white in dark and measured 1.66:1 on amber). */
.btn{display:flex;align-items:center;justify-content:center;gap:var(--s2);width:100%;
  min-height:48px;padding:11px var(--s4);margin:var(--s2) 0;
  background:var(--acc);color:var(--acc-t);border:1px solid transparent;
  border-radius:var(--r-btn);font-size:15px;line-height:22px;font-weight:600;
  text-align:center;text-decoration:none;cursor:pointer;box-shadow:none;
  transition:transform var(--dur-1) var(--spring),filter var(--dur-1) var(--ease),
    background var(--dur-1) var(--ease)}
.btn:active{transform:scale(.97);filter:brightness(.96)}
.btn:disabled{opacity:.45}
.btn:not(.ghost):not(#dl){background:var(--acc);color:var(--acc-t);
  border-color:transparent;font-weight:700}
.btn.ghost{background:var(--surface-2);color:var(--txt);border-color:var(--hair);
  font-weight:600;box-shadow:none}
.btn.ghost:active{background:var(--surface-2)}
#dl{background:var(--surface-2);color:var(--txt);border-color:var(--hair);
  margin:var(--sp3) 0 var(--sp1);min-height:44px;font-size:var(--fs-15);font-weight:600}
#dl:active{background:var(--surface-3)}
.teachrow{margin:var(--sp3) 0 var(--sp1)}
.teachrow .btn{margin:var(--sp2) 0}
.linkbtn{display:block;width:100%;min-height:44px;background:transparent;border:0;
  color:var(--mut);font-size:13px;font-weight:500;padding:8px;cursor:pointer;
  border-radius:var(--r-sm)}
.linkbtn.danger{color:var(--danger-ink)}
.linkbtn:active{background:var(--surface-2)}
.scopeseg{display:flex;gap:0;margin:var(--s3) 0 var(--s1);padding:2px;
  background:var(--surface-2);border:1px solid var(--hair);border-radius:var(--r-sm)}
.scopeseg button{flex:1;min-height:44px;padding:8px var(--s3);
  background:transparent;border:0;border-radius:calc(var(--r-sm) - 2px);
  color:var(--mut);font-size:15px;font-weight:500;cursor:pointer;
  transition:transform var(--dur-1) var(--spring),background var(--dur-1) var(--ease)}
.scopeseg button[aria-selected="true"]{background:var(--surface);color:var(--txt);
  font-weight:600;box-shadow:var(--e1)}
.scopeseg button:active{transform:scale(.97)}

/* Inputs + search bar. */
.fixin,.srow input,.searchbar input{width:100%;min-height:48px;padding:12px var(--s4);
  background:var(--surface-2);border:1px solid var(--hair);border-radius:var(--r-input);
  color:var(--txt);font-size:17px;line-height:22px;-webkit-appearance:none;appearance:none}
.srow input,.searchbar input{flex:1;min-width:0}
.fixin{background:var(--surface);min-height:52px}
.fixin:focus,.srow input:focus,.searchbar input:focus{border-color:var(--acc);outline:none}
.srow input::placeholder,.searchbar input::placeholder{color:var(--dim)}
input[type="search"]::-webkit-search-cancel-button{-webkit-appearance:none;appearance:none;
  width:18px;height:18px;border-radius:50%;background:var(--surface-3);cursor:pointer;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236e6e73' stroke-width='2.6' stroke-linecap='round'%3E%3Cpath d='M6 6l12 12M18 6L6 18'/%3E%3C/svg%3E") center/12px no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236e6e73' stroke-width='2.6' stroke-linecap='round'%3E%3Cpath d='M6 6l12 12M18 6L6 18'/%3E%3C/svg%3E") center/12px no-repeat}
#faults{flex:none;width:auto;margin:0;min-height:48px;padding:0 var(--s4);white-space:nowrap;
  border:1px solid var(--hair);border-radius:var(--r-input);background:var(--surface-2);color:var(--txt);
  font-size:15px;font-weight:500}
.searchbar{position:sticky;top:calc(var(--topbar-h) + env(safe-area-inset-top));z-index:5;
  background:var(--bg);padding:var(--s2) 0}
.srow{display:flex;gap:var(--s2)}
.dlbar{height:6px;border-radius:var(--r-pill);background:var(--surface-2);
  border:1px solid var(--hair);overflow:hidden;margin:var(--sp2) 0 0}
.dlbar i{display:block;height:100%;width:0;background:var(--acc);border-radius:var(--r-pill);
  transition:width .25s var(--ease)}
/* "You're looking at CCx" chip above a thread (warn = another crane). */
.lookchip{display:flex;gap:var(--s2);align-items:center;background:var(--surface);
  border:1px solid var(--hair);border-radius:var(--r-md);padding:10px var(--s3);
  font-size:13px;font-weight:600;margin:0 0 var(--s2);min-height:56px}
.lookchip.warn{border-color:var(--acc)}
.lookchip .chip{min-width:44px}

/* .sheet — bottom sheet: r-lg top, --e4, grab handle, safe-area, spring in. */
.sheet{position:fixed;left:50%;transform:translateX(-50%);width:100%;max-width:760px;
  bottom:0;z-index:60;background:var(--surface);
  border-radius:var(--r-lg) var(--r-lg) 0 0;box-shadow:var(--e4);
  padding:var(--s2) var(--gutter) calc(var(--s4) + env(safe-area-inset-bottom));
  max-height:88dvh;overflow:auto;
  animation:sheetin var(--dur-3) var(--spring) both}
.sheet .grab{width:36px;height:5px;border-radius:var(--r-pill);background:var(--n-300);
  margin:var(--s1) auto var(--s3)}
.sheet .sheettitle{font-size:20px;line-height:26px;font-weight:600;letter-spacing:-.015em;
  margin:0 0 var(--s3)}
.sheet .setrow{display:flex;gap:var(--s3);min-height:52px;
  padding:10px 0;border-bottom:1px solid var(--hair)}
.sheet .setrow:last-child{border-bottom:0}
.sheet .setrow .stxt b{display:block;font-size:17px;line-height:22px;font-weight:600}
.sheet .setrow .stxt small{display:block;color:var(--mut);font-size:13px;line-height:18px}
.scrim{position:fixed;inset:0;z-index:55;background:rgba(0,0,0,.32);
  animation:fadein var(--dur-2) var(--ease-out)}
@keyframes sheetin{from{transform:translateX(-50%) translateY(16px);opacity:.6}
  to{transform:translateX(-50%) translateY(0);opacity:1}}
@keyframes fadein{from{opacity:0}to{opacity:1}}

/* Switch. */
.sw{position:relative;flex:none;width:46px;height:28px;border-radius:var(--r-pill);
  background:var(--surface-3);transition:background var(--dur-2) var(--ease)}
.sw::after{content:"";position:absolute;top:2px;left:2px;width:24px;height:24px;
  border-radius:50%;background:var(--n-0);box-shadow:0 1px 3px rgba(0,0,0,.25);
  transition:transform var(--dur-2) var(--spring)}
[aria-pressed="true"] .sw{background:var(--ok-ink)}
[aria-pressed="true"] .sw::after{transform:translateX(18px)}

/* .skeleton — shimmer block, never a spinner. One darker stop reads as a
 * loading block (surface-2 → surface-3 alone was a ~1.6% step: invisible). */
.skl,.skeleton{height:14px;margin:6px 0;border-radius:var(--r-xs);
  background:linear-gradient(90deg,var(--surface-3) 25%,
    color-mix(in srgb,var(--txt) 9%,var(--surface-3)) 37%,var(--surface-3) 63%);
  background-size:400% 100%;animation:sklshimmer 1.4s var(--ease) infinite}
@keyframes sklshimmer{0%{background-position:100% 0}100%{background-position:0 0}}

/* .empty — icon + title + one hint + one action, never a bare sentence. */
.empty{display:flex;flex-direction:column;align-items:center;gap:var(--s2);
  padding:var(--s6) var(--s4);margin:var(--s3) 0;text-align:center;
  background:var(--surface);border:1px solid var(--hair);border-radius:var(--r-card);
  box-shadow:var(--e1);color:var(--mut);font-size:15px;line-height:22px}
.empty b{font-size:20px;line-height:26px;font-weight:600;color:var(--txt);
  letter-spacing:-.015em}
.empty .et{font-size:20px;line-height:26px;font-weight:600;color:var(--txt)}
.empty .hint{font-size:13px;line-height:18px;color:var(--mut);margin:0;max-width:42ch}

/* .hero — large-title block. */
.hero{position:relative;padding:var(--s5) 0 var(--s4)}
.hero h1,.lt{font-size:34px;line-height:38px;font-weight:700;
  letter-spacing:-.024em;margin:0}
.hero .hsub{font-size:15px;line-height:22px;color:var(--mut);margin:var(--s2) 0 0;
  max-width:46ch}

/* .plate — spec plate: hairline box, corner ticks, mono metadata. */
.plate{position:relative;border:1px solid var(--hair);border-radius:var(--r-sm);
  padding:var(--s3) var(--s4);background:var(--surface);
  font-family:var(--f-mono);font-variant-numeric:tabular-nums;
  font-size:13px;line-height:18px;color:var(--mut)}
.plate::before,.plate::after{content:"";position:absolute;width:8px;height:8px;
  border:1px solid var(--line);opacity:.7}
.plate::before{top:-1px;left:-1px;border-right:0;border-bottom:0;
  border-top-left-radius:var(--r-sm)}
.plate::after{bottom:-1px;right:-1px;border-left:0;border-top:0;
  border-bottom-right-radius:var(--r-sm)}

/* ================================================================ 6. MOTION */
/* Route change = 200ms fade. NB: never animate `transform` on #view or on
 * #view>* — the chat `.dock` is a fixed child of #view and a transformed
 * ancestor becomes its containing block (measured: the dock jumped 195px). */
#view>*{animation:viewfade var(--dur-2) var(--ease-out) both}
@keyframes viewfade{from{opacity:0}to{opacity:1}}
@keyframes fadeup{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
/* List stagger: 24ms/item, capped at 8. */
.grid>*{animation:staggerin var(--dur-2) var(--ease-out) both}
.grid>*:nth-child(1){animation-delay:0ms}
.grid>*:nth-child(2){animation-delay:24ms}
.grid>*:nth-child(3){animation-delay:48ms}
.grid>*:nth-child(4){animation-delay:72ms}
.grid>*:nth-child(5){animation-delay:96ms}
.grid>*:nth-child(6){animation-delay:120ms}
.grid>*:nth-child(7){animation-delay:144ms}
.grid>*:nth-child(n+8){animation-delay:168ms}
@keyframes staggerin{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

/* =============================================================== 7. SCREENS */
/* ---- hero + sections */
.scr-hero{padding:var(--s5) 0 var(--s3)}
.scr-hero h1{margin:0}
.scr-hero .hsub{margin:var(--s2) 0 0}
.scr-hero .hsub .off{color:var(--danger-ink);font-weight:600}
.scr-hero .badges{margin:var(--s3) 0 0}
/* The inline Ask affordance on the crane and file screens. */
.heracta{margin:var(--s3) 0 0}
.askinline{display:inline-flex;align-items:center;justify-content:center;
  gap:var(--s2);min-height:48px;padding:0 var(--s4);text-decoration:none;
  font-weight:600}
.askrow{margin:0 0 var(--s3)}
.sechead{display:flex;align-items:baseline;gap:var(--s3);justify-content:space-between;
  margin:var(--s5) 0 var(--s2);padding:0}
.sechead .sec{margin:0;padding:0}
.seccount{font-size:12px;line-height:16px;color:var(--dim);font-weight:600;
  font-variant-numeric:tabular-nums;white-space:nowrap;flex:none}
.inset{background:var(--surface);border:1px solid var(--hair);border-radius:var(--r-card);
  padding:0 var(--gutter);box-shadow:var(--e1)}
.inset .row{border-bottom:1px solid var(--hair)}
.inset>.row:last-child,.inset>*:last-child .row:last-child{border-bottom:0}

/* ---- home (#/cranes) */
.scr-cont{margin:0 0 var(--s5)}
.contcard{display:grid;grid-template-columns:1fr auto;align-items:center;gap:10px;row-gap:0;
  width:100%;text-align:left;background:var(--surface);border:1px solid var(--hair);
  border-radius:var(--r-card);padding:12px var(--s4);margin:0 0 var(--s2);box-shadow:var(--e1);
  color:var(--txt);text-decoration:none;cursor:pointer;font:inherit}
.contcard:active{background:var(--surface-2);transform:scale(.98)}
.contcard .contlead{grid-column:1;font-size:12px;line-height:16px;font-weight:600;
  letter-spacing:.06em;text-transform:uppercase;color:var(--acc-ink)}
.contcard .conttitle{grid-column:1;margin:0 0 2px;font-size:20px;line-height:26px;font-weight:600;
  letter-spacing:-.015em;overflow-wrap:anywhere}
.contcard .contsub{grid-column:1;color:var(--mut);font-size:13px;line-height:18px;margin:2px 0 0}
.contcard .chev{grid-column:2;grid-row:1/4;align-self:center}
.contcard .btn{margin-top:10px;min-height:44px}
.contcard .btn.ghost{background:var(--surface-2);color:var(--txt);font-weight:600}
.contcard .row .btn{margin:var(--sp2) 0 0}
.chev{color:var(--dim);font-size:20px;line-height:1}
.contacts{display:grid;grid-template-columns:1fr 1fr;gap:var(--s2);margin:var(--s2) 0 0}
.contacts .btn{font-size:15px}
.sicon{position:absolute;left:var(--s4);top:50%;transform:translateY(-50%);
  width:20px;height:20px;color:var(--mut);pointer-events:none}
.sicon svg{width:20px;height:20px;display:block}
.searchbar .srow{position:relative}
.searchbar .srow input{padding-left:calc(var(--s4) + 26px)}
.scopechips{margin:var(--s2) 0 0}
.scopechips .chip{min-height:44px;font-size:13px;padding:0 var(--s3);flex:0 0 auto}
/* Equal tile height: the meta is a 2-line slot so 9-section and 1-section
 * cranes do not produce two different tile rhythms. */
.tile .meta{min-height:36px}
.tile .ring{top:var(--s3);right:var(--s3);background:var(--surface);border-width:2px}
/* not-downloaded is the DEFAULT, not an error: neutral ring, never red. */
.tile .ring.off{border-color:var(--n-300)}
.tile .ring.mid{border-color:var(--acc)}
.tile .ring.half{border-color:var(--acc);border-style:dashed}
.tile .foot:empty{display:none}
.scr-offline-line{margin:0 0 var(--s2);font-size:13px;line-height:18px;color:var(--mut)}
.scr-offline-line.warn{color:var(--warn-ink)}
.scr-sec .sechead{margin-top:var(--s5)}
.scr-foot{margin:var(--s6) 0 0;padding-bottom:var(--s4)}
.scr-foot a{display:inline-flex;align-items:center;min-height:44px;color:var(--acc-ink);
  font-weight:600;text-decoration:none}
.scr-empty{border:1px dashed var(--hair-2);border-radius:var(--r-card);
  padding:var(--s6) var(--s5);margin:var(--s2) 0 0}
.empty .eicon{color:var(--dim);margin-bottom:var(--s1)}
.empty .eicon svg{width:34px;height:34px;display:block}
.empty .row{display:flex;gap:var(--s2);width:100%;margin-top:var(--s3)}
.empty .row .btn{flex:1}

/* ---- segmented control */
.segctl{display:flex;gap:0;padding:2px;margin:var(--s2) 0 var(--s4);
  background:var(--surface-3);border:1px solid var(--hair);border-radius:var(--r-sm)}
.segctl button{flex:1 1 0;min-width:0;min-height:44px;padding:8px var(--s2);
  background:transparent;border:0;border-radius:calc(var(--r-sm) - 2px);
  color:var(--mut);font-size:15px;font-weight:600;cursor:pointer;
  transition:transform var(--dur-1) var(--spring),background var(--dur-2) var(--ease),
    color var(--dur-2) var(--ease)}
.segctl button[aria-selected="true"]{background:var(--surface);color:var(--txt);
  box-shadow:var(--e1)}
.segctl button:active{transform:scale(.97)}
.panel{padding-bottom:var(--s2)}

/* ---- crane */
.skhero{display:flex;flex-direction:column;gap:var(--s2);padding:var(--s5) 0 var(--s3)}
.skeleton-list .skrow{display:flex;align-items:center;gap:var(--s3);
  border-bottom:1px solid var(--hair);padding:10px 0}
.skeleton-list .skrow .skl{margin:0;height:14px}
.card.scr-offline{padding:var(--s4)}   /* beats the responsive .card padding */
.offhead{display:flex;align-items:center;gap:var(--s3);margin-bottom:var(--s4)}
.ringwrap{flex:none;width:52px;height:52px;display:block}
.ringwrap.small{width:36px;height:36px}
.progring{width:100%;height:100%;display:block}
.offtxt{min-width:0}
.offtxt b{display:block;font-size:17px;line-height:22px;font-weight:600;
  letter-spacing:-.015em}
.offtxt small{display:block;color:var(--mut);font-size:13px;line-height:18px;
  font-variant-numeric:tabular-nums;margin-top:1px}
#storline{font-size:13px;color:var(--mut);margin:var(--s2) 0 0}
#delpack{margin-top:var(--s1)}

/* ---- file (sheet register) */
.scr-filehead{position:sticky;top:calc(var(--topbar-h) + env(safe-area-inset-top));
  z-index:4;background:var(--bg);padding:var(--s2) 0 var(--s2);margin:0 0 var(--s1)}
.scr-filehead .sechead{margin:0 0 var(--s2)}
.filetools{display:grid;grid-template-columns:1fr;gap:var(--s2)}
@media (min-width:420px){.filetools{grid-template-columns:1fr 132px}}
.filetools .fixin{min-height:44px;font-size:15px;padding:0 var(--s3);
  border-color:var(--hair);background:var(--surface)}
.filetools .fjump{font-family:var(--f-mono);font-variant-numeric:tabular-nums;
  text-align:center}
/* .row already draws a chevron span; .sheetrow adds ::after — keep ONE. */
.row.sheetrow::after{content:none}
.register{list-style:none;margin:0;padding:0}
.register li{--reg-w:52px}
.regrow{min-height:60px;gap:var(--s3);align-items:center}
.reg{flex:none;width:var(--reg-w);font-family:var(--f-mono);
  font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;color:var(--acc-ink)}
.regrow .rtxt b{font-size:17px;line-height:22px}
.regrow .rtxt small{font-size:13px;line-height:18px;color:var(--mut)}
.locchip{flex:none;font-family:var(--f-mono);font-variant-numeric:tabular-nums;
  font-size:12px;font-weight:600;color:var(--mut);background:var(--surface-2);
  border-radius:var(--r-xs);padding:3px var(--s2);min-height:22px;display:inline-flex;
  align-items:center}
.register li.hit{background:var(--acc-weak);border-radius:var(--r-sm)}
.register li.hit .reg{color:var(--acc-ink)}

/* ---- manuals */
.scr-toolbar{display:flex;align-items:center;justify-content:space-between;gap:var(--s3);
  margin:var(--s3) 0 var(--s1)}
.scr-toolbar .chip{min-height:44px}
.scr-mrow{display:flex;align-items:stretch;border-bottom:1px solid var(--hair);
  background:var(--surface);transition:background var(--dur-1) var(--ease-out)}
.scr-mrow:last-child{border-bottom:0}
.scr-mrow:active{background:var(--surface-2)}
.scr-mrow-main{flex:1;min-width:0;display:flex;align-items:center;gap:var(--s3);
  min-height:64px;padding:10px 0;color:var(--txt);text-decoration:none}
.scr-mrow-main .rtxt{flex:1;min-width:0}
.scr-mrow-main .rtxt b{display:block;font-size:17px;line-height:22px;font-weight:600;
  letter-spacing:-.015em;overflow-wrap:anywhere}
.scr-mrow-main .rtxt small{display:block;color:var(--mut);font-size:13px;line-height:18px;
  margin-top:1px}
/* Document numbers sit INSIDE the meta line (mono, tabular). A separate
 * trailing cell collided with wrapped titles at 320-390px. */
.docno{font-family:var(--f-mono);font-variant-numeric:tabular-nums;
  font-size:12px;font-weight:600;color:var(--dim)}
.scr-mrow-act{flex:none;align-self:center;min-width:64px;min-height:44px;padding:0 var(--s2);
  background:transparent;border:0;border-radius:var(--r-sm);color:var(--acc-ink);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform var(--dur-1) var(--spring),background var(--dur-1) var(--ease)}
.scr-mrow-act:active{background:var(--surface-2);transform:scale(.97)}
.scr-mrow-act.on{color:var(--ok-ink);font-weight:700}
.scr-mrow-act:disabled{opacity:1;cursor:default}

/* ---- search results */
.result{padding:0;overflow:hidden}
.result .rhit{display:block;padding:12px var(--s4);color:var(--txt);text-decoration:none}
.result .rhit:active{background:var(--surface-2)}
.result .rhead{display:flex;align-items:baseline;gap:var(--s2);min-width:0}
.result .rhead .tag{margin:0;flex:none}
.result .rnum{font-family:var(--f-mono);font-variant-numeric:tabular-nums;
  font-size:15px;font-weight:700;color:var(--acc-ink);flex:none}
.result .rmeta{font-size:12px;line-height:16px;color:var(--mut);
  font-variant-numeric:tabular-nums;margin-left:auto;flex:none;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.result .t{display:block;margin-top:2px}
.result .m,.result .s,.result .why{display:block}
.result .why{color:var(--mut);font-size:12px;line-height:16px;margin-top:var(--s1);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.racts{display:flex;gap:var(--s2);padding:0 var(--s4) var(--s3)}
.racts .chip{min-height:44px;font-size:13px;padding:0 var(--s3);gap:6px;
  color:var(--acc-ink);background:var(--acc-weak);border-color:transparent}
.racts .chip svg{width:16px;height:16px;flex:none}
.scr-progress{background:var(--surface);border:1px solid var(--hair);
  border-radius:var(--r-card);padding:var(--s3) var(--s4);box-shadow:var(--e1)}
.scr-progress .chip{min-height:44px}
.pgrow{display:flex;align-items:center;justify-content:space-between;gap:var(--s3);
  margin-bottom:var(--s2)}
.pgtext{font-size:15px;font-weight:600;color:var(--txt)}

/* ---- confirmation sheets: `.btn{width:100%}` inside the flex setrow squeezed
 * `.stxt` to 0 width (label one character per line, Cancel below the fold). */
.sheet .setrow{align-items:center}
.sheet .setrow .stxt{flex:1 1 auto;min-width:0}
.sheet .setrow .btn{width:auto;flex:0 0 auto;min-width:112px;margin:0}
.sheet .btn.ghost{width:100%}

/* ---- settings */
.setrow{display:flex;align-items:center;gap:var(--s3);min-height:52px;
  padding:10px var(--gutter);border-bottom:1px solid var(--hair);
  color:var(--txt);text-decoration:none}
.inset>.setrow:last-child{border-bottom:0}
.setrow:active{background:var(--surface-2)}
.setrow .stxt{flex:1;min-width:0}
.setrow .stxt b{display:block;font-size:17px;line-height:22px;font-weight:600;
  letter-spacing:-.015em;overflow-wrap:anywhere}
.setrow .stxt small{display:block;color:var(--mut);font-size:13px;line-height:18px;margin-top:1px}
.setval{flex:none;color:var(--mut);font-size:15px;font-weight:600;text-align:right;
  max-width:46%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.setval.wrap{white-space:normal;overflow-wrap:anywhere;max-width:52%;font-size:13px;
  line-height:18px}
.segmini{flex:none;display:flex;padding:2px;background:var(--surface-2);
  border-radius:var(--r-sm);gap:0}
.segmini button{min-width:64px;min-height:44px;padding:0 var(--s2);border:0;
  border-radius:calc(var(--r-sm) - 2px);background:transparent;color:var(--mut);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background var(--dur-2) var(--ease),color var(--dur-2) var(--ease)}
.segmini button[aria-pressed="true"]{background:var(--surface);color:var(--txt);
  box-shadow:var(--e1)}
.segmini button:active{transform:scale(.97)}
/* A three-way choice (Theme: System · Light · Dark) takes its own line under the label. */
.setrow:has(>.segmini>button:nth-child(3)){flex-wrap:wrap;row-gap:var(--s2)}
.setrow:has(>.segmini>button:nth-child(3))>.stxt{flex:1 1 100%}
.setrow:has(>.segmini>button:nth-child(3))>.segmini{margin-left:auto}
.swbtn{flex:none;width:56px;height:44px;display:flex;align-items:center;
  justify-content:flex-end;background:transparent;border:0;padding:0;cursor:pointer}
.swbtn .sw{width:46px;height:28px;border-radius:var(--r-pill);background:var(--surface-3);
  position:relative;transition:background var(--dur-2) var(--ease)}
.swbtn .sw::after{content:"";position:absolute;top:2px;left:2px;width:24px;height:24px;
  border-radius:50%;background:var(--surface);box-shadow:var(--e1);
  transition:transform var(--dur-2) var(--spring)}
.swbtn[aria-checked="true"] .sw{background:var(--ok-ink)}
.swbtn[aria-checked="true"] .sw::after{transform:translateX(18px)}
.swbtn:active .sw{transform:scale(.95)}
.offrow .stxt b{font-size:17px}
.scr-plate{margin:var(--s2) 0 var(--s3);line-height:1.6}
.warnplate{border-left:3px solid var(--warn);font-family:var(--f);font-size:13px;
  line-height:1.5;color:var(--txt)}
.warnplate b{font-size:15px}
.scr-sup{overflow-wrap:anywhere;user-select:all;margin:var(--s2) 0 0}
#dlall{margin:var(--s3) 0 0}
#offhint{margin:var(--s2) 0 0}

/* ===================================================== 8. GLASS (chrome only)
 * The header, the composer dock and the search overlay are the ONLY translucent
 * layers. Gate: backdrop-filter support AND transparency allowed (OS setting)
 * AND the low-end / Settings › Transparency kill-switch (html.noglask) not set.
 * Content surfaces are opaque and own their borders — no gate repaints them. */
@supports ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){
  @media (prefers-reduced-transparency:no-preference){
    html:not(.noglask) body:not(.contrast) :is(#topbar,.dock,.qoverlay,#reloadbar,#toast){
      -webkit-backdrop-filter:blur(var(--glass-blur)) saturate(var(--glass-sat));
      backdrop-filter:blur(var(--glass-blur)) saturate(var(--glass-sat));
      border-color:var(--glass-edge);
      box-shadow:var(--glass-shadow);
    }
    html:not(.noglask) body:not(.contrast) :is(#topbar,.dock,.qoverlay){
      background:var(--glass-fill-strong);
    }
  }
}
/* Transparency off (low-end phone, Settings, or the OS): hard solids. */
html.noglask :is(#topbar,#reloadbar,#toast,.dock,.qoverlay){
  background:var(--surface);box-shadow:none;
  -webkit-backdrop-filter:none;backdrop-filter:none}
@media (prefers-reduced-transparency:reduce){
  #topbar,#reloadbar,#toast,.dock,.qoverlay{
    background:var(--surface);-webkit-backdrop-filter:none;backdrop-filter:none;box-shadow:none}
}

/* ================================================================= 9. MODES */
/* Big type: the --fs-* tokens scale in styles.css; these are the hardcoded sizes. */
body.bigtype{font-size:19px}
body.bigtype .card b,body.bigtype .file b,body.bigtype .sheetrow .t,
body.bigtype .result .t,body.bigtype .row .rtxt b{font-size:18px;line-height:24px}
body.bigtype .sec,body.bigtype .sechead,body.bigtype .ovsec{font-size:13px}
body.bigtype .file small,body.bigtype .card small{font-size:14px;line-height:19px}
body.bigtype .scr-hero h1{font-size:38px;line-height:44px}
body.bigtype .scr-hero .hsub{font-size:18px;line-height:26px}
body.bigtype .seccount{font-size:14px;line-height:20px}
body.bigtype .tile .code{font-size:32px;line-height:38px}
body.bigtype .tile .meta{font-size:16px;line-height:22px;min-height:44px}
body.bigtype .tile .badge{font-size:14px}
body.bigtype .contcard .contlead{font-size:14px;line-height:20px}
body.bigtype .contcard .conttitle{font-size:24px;line-height:30px}
body.bigtype .contcard .contsub{font-size:16px;line-height:22px}
body.bigtype .segctl button,body.bigtype .segmini button{font-size:17px}
body.bigtype .segmini button{min-width:72px}
body.bigtype .scopechips .chip{font-size:15px}
body.bigtype .searchbar input,body.bigtype .srow input,body.bigtype .fixin{font-size:19px}
/* keep the register column from colliding with long titles */
body.bigtype .register li{--reg-w:64px}
body.bigtype .reg{font-size:16px;width:var(--reg-w)}
body.bigtype .regrow .rtxt b,body.bigtype .scr-mrow-main .rtxt b,
body.bigtype .setrow .stxt b{font-size:20px;line-height:26px}
body.bigtype .regrow .rtxt small,body.bigtype .scr-mrow-main .rtxt small,
body.bigtype .setrow .stxt small{font-size:16px;line-height:22px}
body.bigtype .locchip,body.bigtype .docno{font-size:14px}
body.bigtype .scr-mrow-act{font-size:17px;min-width:72px}
body.bigtype .setval{font-size:17px}
body.bigtype .result .rnum{font-size:17px}
body.bigtype .result .rmeta,body.bigtype .result .why{font-size:14px;line-height:20px}
body.bigtype .racts .chip{font-size:15px}
body.bigtype .pgtext{font-size:17px}
body.bigtype .scr-offline-line{font-size:15px;line-height:22px}
body.bigtype .offtxt b{font-size:20px;line-height:26px}
body.bigtype .offtxt small{font-size:16px;line-height:22px}

/* Maximum contrast: opaque black/white/yellow (the tokens flip in styles.css). */
body.contrast{background:#000;color:#fff}
body.contrast .skip{background:#fff;color:#000}
body.contrast :is(.card,.result,.tile,.empty,.sheet){background:#000;border-color:#fff;box-shadow:none}
body.contrast a,body.contrast .citelink{color:#ff0}
body.contrast :is(.btn.ghost,.chip,#back,#themebtn){background:#000;color:#fff;border-color:#fff}
body.contrast .btn,body.contrast .btn:not(.ghost){background:var(--acc);color:var(--acc-t);border-color:#fff}
body.contrast .badge{background:#000;color:#fff;border:0}
body.contrast mark{background:#ff0;color:#000}
body.contrast #topbar{background:#000;border-color:#fff}
body.contrast #reloadbar{background:#000;color:#ff0;border-color:#fff}
body.contrast #drawer{background:#000;color:#fff;border-color:#fff}
body.contrast #offbar{background:#000;color:#ff0}
body.contrast .skl,body.contrast .skeleton{background:#333}
body.contrast .inset,body.contrast .scr-offline,body.contrast .scr-progress,
body.contrast .scr-mrow,body.contrast .setrow,body.contrast .scr-empty{
  background:#000;border-color:#fff;box-shadow:none}
body.contrast .scr-mrow-act,body.contrast .segctl,body.contrast .segmini,
body.contrast .locchip,body.contrast .racts .chip{background:#000;color:#ff0;border-color:#fff}
body.contrast .reg,body.contrast .result .rnum,body.contrast .docno{color:#ff0}
body.contrast .tile .ring{border-color:#fff}
body.contrast .tile .ring.on{border-color:#0f0}
body.contrast .scopechips .chip[aria-pressed="true"],
body.contrast .segctl button[aria-selected="true"],
body.contrast .segmini button[aria-pressed="true"]{background:#ff0;color:#000}
body.contrast .scr-filehead{background:#000}
body.contrast .swbtn .sw{background:#000;border:1px solid #fff}
body.contrast .swbtn .sw::after{background:#fff}
body.contrast .swbtn[aria-checked="true"] .sw{background:#ff0}
body.contrast .swbtn[aria-checked="true"] .sw::after{background:#000}

/* OS-level contrast preference (the tokens step up in styles.css). */
@media (prefers-contrast:more){
  .card,.result,.searchbar input{border-width:1.5px}
}
/* Reduced motion: everything stops, nothing hides. */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;
    animation-iteration-count:1!important;transition-duration:.001ms!important;
    scroll-behavior:auto!important}
  .skl,.skeleton{animation:none;opacity:.7}
  #view>*,.msg,.grid>*,#reloadbar,.sheet,#drawer{animation:none;opacity:1;transform:none}
  .sheet{transform:translateX(-50%)}
  .segctl button,.scr-mrow-act,.scopechips .chip{transition:none}
}

/* ============================================================ 10. RESPONSIVE */
@media (max-width:359px){
  .grid{grid-template-columns:1fr;gap:var(--s2)}
  .card b{font-size:17px}
  /* Settings rows: give the label the full width and let the control wrap. */
  .setrow{flex-wrap:wrap;row-gap:var(--s2);padding-left:var(--s3);padding-right:var(--s3)}
  .setrow .stxt{flex:1 1 100%}
  .segmini,.swbtn{margin-left:auto}
  .scr-hero{padding-top:var(--s4)}
  .contacts{grid-template-columns:1fr}
  .register li{--reg-w:46px}
  .docno{display:none}
  .inset{padding:0 var(--s3)}
}
/* Landscape phones and any short viewport (keyboard open): compact chrome, and
 * the large title must not eat the whole screen. */
@media (max-height:520px){
  #topbar{padding-top:calc(3px + env(safe-area-inset-top));padding-bottom:3px}
  #crumb{opacity:1;font-size:15px}
  .sec{margin:var(--s4) 0 var(--s2)}
  .grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:var(--s2)}
  .card{min-height:64px;padding:var(--s3)}
  #toast{bottom:calc(var(--tabbar-h) + var(--s3) + env(safe-area-inset-bottom))}
  .scr-hero{padding:var(--s2) 0 var(--s1)}
  .scr-hero h1{font-size:24px;line-height:30px}
  .scr-hero .hsub{margin-top:2px;font-size:13px;line-height:18px}
  .scr-hero .badges{margin-top:var(--s2)}
  .scr-cont{margin-bottom:var(--s3)}
  .segctl{margin:var(--s1) 0 var(--s2)}
  .scopechips{margin-top:var(--s1)}
  .sechead{margin:var(--s3) 0 var(--s1)}
  .scr-filehead{padding:var(--s1) 0}
  .scr-filehead .sechead{margin-bottom:var(--s1)}
  .tile .meta{min-height:0}
  .scr-hero,.panel{padding-bottom:var(--s1)}
}
/* Landscape rail: the right-hand 340px belongs to the chat dock only. */
@media (min-width:600px) and (max-height:520px){
  body{max-width:none}
  body.inchat #view{padding-right:calc(340px + var(--gutter))}
  body.inchat #toast{left:calc(50% - 170px)}
}
@media (min-width:700px){
  .scr-pad{height:var(--s5)}
  .grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
  .card{padding:var(--s5)}
  .scopechips .chip{font-size:15px}
  .filetools{grid-template-columns:1fr 160px}
}
@media (min-width:900px){
  body{max-width:920px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:var(--s3)}
  #view{padding:var(--s4) var(--s5) 0}
}
/* Fine pointers only: hover affordances never stick on touch. */
@media (hover:hover) and (pointer:fine){
  .card:hover,.result:hover{background:var(--surface-2);box-shadow:var(--e2)}
  .chip:hover,.btn.ghost:hover{background:var(--surface-3)}
  .file:hover,.sheetrow:hover,.hrow:hover,.chatrow:hover{background:var(--surface-2)}
}