/* handwriter — a quiet, native-feeling workspace. Neutral surfaces, one ink-blue for selection,
   Geist for the interface, the person's own writing as the only expressive element. */
:root {
  --bg: #ffffff;
  --panel: #fafafa;
  --muted: #f4f4f5;
  --hover: #ececee;
  --border: #e4e4e7;
  --border-strong: #d4d4d8;
  --fg: #09090b;
  --fg-2: #3f3f46;
  --fg-3: #71717a;
  --fg-4: #a1a1aa;
  --primary: #18181b;
  --primary-fg: #fafafa;
  --accent: #2f5bea;
  --accent-soft: rgba(47, 91, 234, 0.12);
  --accent-fg: #ffffff;
  --danger: #dc2626;
  --ok: #15803d;
  --warn: #b45309;
  --paper: #ffffff;
  --ink: #111114;
  --ink-ghost: rgba(17, 17, 20, 0.14);
  --guide: #c9d6f8;
  --guide-strong: #8ea6ef;
  --shadow: 0 1px 2px rgba(0, 0, 0, .05), 0 8px 24px rgba(0, 0, 0, .08);
  --radius: 8px;
  --font: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b0b0d; --panel: #111114; --muted: #1a1a1e; --hover: #232328; --border: #26262b; --border-strong: #34343a;
    --fg: #fafafa; --fg-2: #d4d4d8; --fg-3: #a1a1aa; --fg-4: #71717a;
    --primary: #fafafa; --primary-fg: #09090b; --accent: #6d8dff; --accent-soft: rgba(109, 141, 255, .18); --accent-fg: #0b0b0d;
    --danger: #f87171; --ok: #4ade80; --warn: #fbbf24;
    --paper: #141417; --ink: #f2f2f4; --ink-ghost: rgba(242, 242, 244, .16); --guide: #2b3558; --guide-strong: #4a5d9e;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .5);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0b0b0d; --panel: #111114; --muted: #1a1a1e; --hover: #232328; --border: #26262b; --border-strong: #34343a;
  --fg: #fafafa; --fg-2: #d4d4d8; --fg-3: #a1a1aa; --fg-4: #71717a;
  --primary: #fafafa; --primary-fg: #09090b; --accent: #6d8dff; --accent-soft: rgba(109, 141, 255, .18); --accent-fg: #0b0b0d;
  --danger: #f87171; --ok: #4ade80; --warn: #fbbf24;
  --paper: #141417; --ink: #f2f2f4; --ink-ghost: rgba(242, 242, 244, .16); --guide: #2b3558; --guide-strong: #4a5d9e;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .5);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body, #app { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 13px/1.45 var(--font); -webkit-font-smoothing: antialiased; -webkit-text-size-adjust: 100%; overscroll-behavior: none; }
body.scrubbing, body.scrubbing * { cursor: ew-resize !important; user-select: none; }
[hidden] { display: none !important; }
button, input, textarea { font: inherit; color: inherit; }
h1, h2, h3, p { margin: 0; }
kbd { font: 11px var(--mono); color: var(--fg-3); background: var(--muted); border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 4px; padding: 0 4px; margin-left: auto; }
.muted { color: var(--fg-3); }
.mono { font-family: var(--mono); }
.ic { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 32px; padding: 0 12px; border-radius: 6px; border: 1px solid var(--border); background: var(--bg); color: var(--fg); cursor: pointer; white-space: nowrap; font-weight: 500; transition: background .12s, border-color .12s; -webkit-tap-highlight-color: transparent; }
.btn:hover { background: var(--muted); }
.btn:disabled { opacity: .45; cursor: default; }
.btn-primary { background: var(--primary); color: var(--primary-fg); border-color: var(--primary); }
.btn-primary:hover { background: color-mix(in srgb, var(--primary) 88%, var(--bg)); }
.btn-accent { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover { background: var(--hover); }
.btn-outline { background: transparent; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-link { border: 0; background: none; color: var(--accent); padding: 0 4px; height: auto; }
.btn-sm { height: 28px; padding: 0 9px; font-size: 12px; }
.btn-icon { width: 32px; padding: 0; }
.btn-sm.btn-icon { width: 28px; }
.btn-lg { height: 40px; padding: 0 18px; font-size: 14px; }
.btn.on { background: var(--accent-soft); color: var(--accent); border-color: transparent; }

/* ---------- inputs ---------- */
.input, .textarea { width: 100%; height: 32px; padding: 0 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); outline: none; }
.textarea { height: auto; padding: 8px 10px; resize: vertical; font-family: var(--mono); font-size: 12px; line-height: 1.5; }
.input:focus, .textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field { display: grid; gap: 6px; }
.field > span { font-size: 12px; color: var(--fg-3); font-weight: 500; }

/* dropdown */
.dd { display: inline-flex; align-items: center; justify-content: space-between; gap: 8px; height: 32px; min-width: 0; width: 100%; padding: 0 8px 0 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); cursor: pointer; text-align: left; }
.dd:hover { border-color: var(--border-strong); }
.dd .ic { color: var(--fg-3); }
.dd-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dd.sm { height: 28px; font-size: 12px; }
.pop { position: fixed; z-index: 60; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; box-shadow: var(--shadow); padding: 4px; max-height: min(420px, 70vh); overflow: auto; animation: pop .12s ease-out; }
@keyframes pop { from { opacity: 0; transform: translateY(-3px); } }
.dd-list { display: grid; gap: 1px; }
.dd-opt { display: flex; align-items: center; gap: 8px; width: 100%; min-height: 30px; padding: 4px 8px; border: 0; border-radius: 5px; background: none; cursor: pointer; text-align: left; white-space: nowrap; }
.dd-opt:hover, .dd-opt:focus { background: var(--muted); outline: none; }
.dd-opt.danger { color: var(--danger); }
.dd-opt:disabled { opacity: .45; }
.dd-check { width: 15px; display: inline-flex; color: var(--accent); }
.dd-hint { margin-left: auto; padding-left: 16px; color: var(--fg-4); font: 11px var(--mono); }
.dd-group { padding: 8px 8px 4px; font-size: 11px; font-weight: 600; color: var(--fg-4); text-transform: uppercase; letter-spacing: .05em; }
.menu-sep { height: 1px; background: var(--border); margin: 4px 0; }

/* slider */
.slider-row { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 10px; }
.slider-label { font-size: 12px; color: var(--fg-3); min-width: 64px; }
.slider-val { font: 12px var(--mono); color: var(--fg-2); min-width: 34px; text-align: right; font-variant-numeric: tabular-nums; }
.slider { -webkit-appearance: none; appearance: none; width: 100%; height: 20px; background: transparent; margin: 0; cursor: pointer; --pct: 50%; }
.slider::-webkit-slider-runnable-track { height: 4px; border-radius: 4px; background: linear-gradient(to right, var(--primary) var(--pct), var(--border) var(--pct)); }
.slider::-moz-range-track { height: 4px; border-radius: 4px; background: var(--border); }
.slider::-moz-range-progress { height: 4px; border-radius: 4px; background: var(--primary); }
.slider::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; margin-top: -6px; border-radius: 50%; background: var(--bg); border: 1.5px solid var(--primary); box-shadow: 0 1px 2px rgba(0,0,0,.15); }
.slider::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: var(--bg); border: 1.5px solid var(--primary); }
.slider:focus-visible { outline: none; }
.slider:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 4px var(--accent-soft); }

/* switch */
.switch-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 30px; cursor: pointer; }
.switch-text { display: grid; }
.switch-text small { color: var(--fg-3); font-size: 11.5px; }
.switch { -webkit-appearance: none; appearance: none; position: relative; flex: none; width: 34px; height: 20px; margin: 0; border-radius: 20px; background: var(--border-strong); cursor: pointer; transition: background .15s; }
.switch::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.25); transition: transform .15s; }
.switch:checked { background: var(--primary); }
.switch:checked::after { transform: translateX(14px); }
:root[data-theme="dark"] .switch:checked::after { background: #0b0b0d; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .switch:checked::after { background: #0b0b0d; } }

/* scrub field */
.scrub { display: flex; align-items: center; height: 30px; border: 1px solid transparent; border-radius: 6px; background: var(--muted); min-width: 0; }
.scrub:hover { border-color: var(--border); }
.scrub:focus-within { border-color: var(--accent); background: var(--bg); }
.scrub-label { flex: none; display: inline-flex; align-items: center; justify-content: center; min-width: 26px; height: 100%; padding: 0 6px; color: var(--fg-3); font-size: 11.5px; cursor: ew-resize; user-select: none; touch-action: none; }
.scrub-input { flex: 1; min-width: 0; width: 100%; height: 100%; border: 0; background: transparent; outline: none; font: 12px var(--mono); font-variant-numeric: tabular-nums; padding: 0 6px 0 0; }
.scrub-unit { padding-right: 8px; color: var(--fg-4); font-size: 11px; }

/* segmented */
.seg { display: inline-flex; padding: 2px; gap: 2px; border-radius: 8px; background: var(--muted); }
.seg button { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 28px; min-width: 30px; padding: 0 8px; border: 0; border-radius: 6px; background: transparent; color: var(--fg-3); cursor: pointer; font-weight: 500; font-size: 12px; -webkit-tap-highlight-color: transparent; }
.seg button:hover { color: var(--fg); }
.seg button[aria-checked="true"] { background: var(--bg); color: var(--fg); box-shadow: 0 1px 2px rgba(0,0,0,.08), 0 0 0 1px var(--border); }
.seg.full { display: flex; }
.seg.full button { flex: 1; }

/* chips */
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 10px; border: 1px solid var(--border); border-radius: 13px; background: var(--bg); color: var(--fg-2); font-size: 12px; cursor: pointer; white-space: nowrap; }
.chip:hover { background: var(--muted); }
.chip[aria-pressed="true"] { background: var(--primary); color: var(--primary-fg); border-color: var(--primary); }
.chip .n { font: 11px var(--mono); opacity: .6; }
.chips-input { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; min-height: 32px; padding: 3px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); }
.chips-input:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.chip-v { display: inline-flex; align-items: center; gap: 2px; height: 24px; padding: 0 2px 0 8px; border-radius: 4px; background: var(--muted); font: 12px var(--mono); }
.chip-v.group { background: var(--accent-soft); color: var(--accent); font-family: var(--font); font-weight: 500; }
.chip-x { display: inline-flex; border: 0; background: none; padding: 3px; border-radius: 3px; color: var(--fg-3); cursor: pointer; }
.chip-x:hover { background: var(--hover); }
.chips-field { flex: 1; min-width: 60px; height: 24px; border: 0; outline: none; background: transparent; font: 12px var(--mono); }

/* modal */
.modal-back { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left)); background: rgba(9, 9, 11, .45); animation: fade .15s; }
@keyframes fade { from { opacity: 0; } }
.modal { width: min(520px, 100%); max-height: 100%; display: flex; flex-direction: column; background: var(--bg); border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow); animation: pop .15s ease-out; }
.modal.wide { width: min(880px, 100%); }
.modal.full { width: min(1180px, 100%); height: min(860px, 100%); }
.modal-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 16px 8px 20px; }
.modal-head h2 { font-size: 16px; font-weight: 600; letter-spacing: -.01em; }
.modal-body { padding: 8px 20px 16px; overflow: auto; display: grid; gap: 14px; align-content: start; min-height: 0; flex: 1; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 20px 16px; border-top: 1px solid var(--border); }

/* toasts */
.toasts { position: fixed; z-index: 70; right: max(16px, env(safe-area-inset-right)); bottom: max(16px, env(safe-area-inset-bottom)); display: grid; gap: 8px; }
.toast { display: flex; align-items: center; gap: 12px; max-width: 380px; padding: 10px 14px; border-radius: 8px; background: var(--primary); color: var(--primary-fg); box-shadow: var(--shadow); font-size: 13px; animation: pop .15s; transition: opacity .3s; }
.toast .btn-link { color: inherit; text-decoration: underline; }
.toast.error { background: var(--danger); color: #fff; }
.toast.out { opacity: 0; }

/* =========================================================== home */
.home { min-height: 100%; padding-block: max(28px, env(safe-area-inset-top)) 48px; padding-left: max(16px, env(safe-area-inset-left)); padding-right: max(16px, env(safe-area-inset-right)); }
.home-inner { max-width: 1080px; margin: 0 auto; display: grid; gap: 28px; }
.home-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 34px; height: 34px; border-radius: 8px; background: var(--primary); color: var(--primary-fg); display: grid; place-items: center; }
.brand-name { font-size: 18px; font-weight: 600; letter-spacing: -.02em; }
.brand-sub { color: var(--fg-3); font-size: 12px; }
.home-hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; }
@media (max-width: 760px) { .home-hero { grid-template-columns: 1fr; } }
.start-card { display: grid; gap: 10px; align-content: start; padding: 20px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); text-align: left; cursor: pointer; transition: border-color .12s, transform .12s; }
.start-card:hover { border-color: var(--border-strong); }
.start-card h3 { font-size: 15px; font-weight: 600; letter-spacing: -.01em; }
.start-card p { color: var(--fg-3); }
.start-card.primary { background: var(--primary); color: var(--primary-fg); border-color: var(--primary); }
.start-card.primary p { color: color-mix(in srgb, var(--primary-fg) 70%, transparent); }
.start-card .sample { height: 64px; }
.start-side { display: grid; gap: 10px; }
.start-row { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--bg); cursor: pointer; text-align: left; }
.start-row:hover { background: var(--muted); }
.start-row .ic { color: var(--fg-3); }
.start-row b { display: block; font-weight: 600; }
.start-row span { color: var(--fg-3); font-size: 12px; }
.section-h { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.section-h h2 { font-size: 13px; font-weight: 600; color: var(--fg-3); text-transform: uppercase; letter-spacing: .06em; }
.projects { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.pcard { display: grid; grid-template-rows: 120px auto; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--bg); cursor: pointer; text-align: left; padding: 0; }
.pcard:hover { border-color: var(--border-strong); box-shadow: var(--shadow); }
.pcard canvas { width: 100%; height: 120px; display: block; background: var(--paper); border-bottom: 1px solid var(--border); }
.pcard-meta { display: flex; align-items: center; gap: 8px; padding: 10px 8px 10px 14px; }
.pcard-meta b { display: block; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pcard-meta span { color: var(--fg-3); font-size: 12px; }
.pcard-meta > div { min-width: 0; flex: 1; }
.empty-note { padding: 28px; border: 1px dashed var(--border-strong); border-radius: 12px; color: var(--fg-3); text-align: center; }
.home-foot { color: var(--fg-4); font-size: 12px; display: flex; gap: 16px; flex-wrap: wrap; }

/* =========================================================== studio */
.studio { height: 100%; display: grid; grid-template-rows: auto 1fr; padding-top: env(safe-area-inset-top); padding-bottom: env(safe-area-inset-bottom); }
.topbar { display: flex; align-items: center; gap: 8px; height: 48px; padding: 0 10px; padding-left: max(10px, env(safe-area-inset-left)); padding-right: max(10px, env(safe-area-inset-right)); border-bottom: 1px solid var(--border); background: var(--bg); min-width: 0; }
.topbar .title { display: flex; align-items: center; gap: 6px; min-width: 0; }
.topbar .title button { max-width: 220px; overflow: hidden; text-overflow: ellipsis; }
.topbar .spacer { flex: 1; }
.topbar .tools { display: flex; gap: 6px; align-items: center; }
.save-state { font-size: 11.5px; color: var(--fg-4); white-space: nowrap; }
.work { min-height: 0; display: grid; grid-template-columns: 272px minmax(0, 1fr) 272px; grid-template-rows: minmax(0, 1fr) auto; grid-template-areas: "left center right" "left test right"; }
.left { grid-area: left; min-height: 0; display: flex; flex-direction: column; border-right: 1px solid var(--border); background: var(--panel); }
.right { grid-area: right; min-height: 0; overflow: auto; border-left: 1px solid var(--border); background: var(--panel); }
.center { grid-area: center; position: relative; min-height: 0; min-width: 0; background: var(--paper); overflow: hidden; }
.teststrip { grid-area: test; min-width: 0; border-top: 1px solid var(--border); background: var(--bg); }
.tabs { display: flex; gap: 2px; padding: 8px 8px 0; border-bottom: 1px solid var(--border); }
.tab { height: 32px; padding: 0 10px; border: 0; border-bottom: 2px solid transparent; background: none; color: var(--fg-3); font-weight: 500; cursor: pointer; }
.tab[aria-selected="true"] { color: var(--fg); border-bottom-color: var(--fg); }
.tab-body { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.scroll { overflow: auto; min-height: 0; flex: 1; }

/* glyph list */
.gl-tools { display: grid; gap: 8px; padding: 10px; border-bottom: 1px solid var(--border); }
.gl-search { position: relative; }
.gl-search .ic { position: absolute; left: 9px; top: 8px; color: var(--fg-4); }
.gl-search .input { padding-left: 30px; }
.gl-filters { display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; padding-bottom: 2px; }
.gl-filters::-webkit-scrollbar { display: none; }
.ggrid { flex: 1 1 0; min-height: 0; overflow-y: auto; overflow-x: hidden; overscroll-behavior: contain; padding: 10px; display: grid; grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); grid-auto-rows: 84px; gap: 6px; align-content: start; }
.gcell { position: relative; display: flex; flex-direction: column; height: 84px; min-width: 0; padding: 0; border: 1px solid var(--border); border-radius: 6px; background: var(--paper); overflow: hidden; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.gcell:hover { border-color: var(--border-strong); }
.gcell[aria-selected="true"] { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.gcell .gv { position: relative; flex: 1 1 0; min-height: 0; }
.gcell canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.gcell .gl { flex: none; padding: 2px 5px 3px; border-top: 1px solid var(--border); font: 10px/1.2 var(--mono); color: var(--fg-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; background: var(--bg); }
.gcell.empty .gv::after { content: attr(data-ch); position: absolute; inset: 0; display: grid; place-items: center; color: var(--fg-4); font-size: 22px; font-family: var(--font); opacity: .55; }
.gcell .dot { position: absolute; top: 4px; right: 4px; width: 6px; height: 6px; border-radius: 50%; }
.gcell .dot.auto { background: var(--fg-4); }
.gcell .dot.join { background: var(--accent); }
.gl-more { grid-column: 1 / -1; color: var(--fg-3); font-size: 12px; padding: 4px 2px; }
.gl-foot { display: flex; gap: 6px; padding: 8px 10px; border-top: 1px solid var(--border); }

/* canvas area */
.canvas-wrap { position: absolute; inset: 0; }
.canvas-wrap canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }
.canvas-hud { position: absolute; left: 12px; right: 12px; top: 10px; display: flex; align-items: center; justify-content: space-between; gap: 8px; pointer-events: none; }
.canvas-hud > * { pointer-events: auto; }
.glyph-title { display: flex; align-items: baseline; gap: 8px; padding: 4px 10px; border-radius: 8px; background: color-mix(in srgb, var(--paper) 85%, transparent); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.glyph-title b { font-size: 15px; }
.glyph-title span { color: var(--fg-3); font: 11px var(--mono); }
.toolbar { position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%); display: flex; align-items: center; gap: 4px; padding: 4px; border: 1px solid var(--border); border-radius: 12px; background: var(--bg); box-shadow: var(--shadow); z-index: 5; }
.toolbar .seg { background: transparent; }
.toolbar .seg button { height: 38px; min-width: 40px; border-radius: 8px; }
.toolbar .seg button[aria-checked="true"] { background: var(--primary); color: var(--primary-fg); box-shadow: none; }
.toolbar .sep { width: 1px; height: 24px; background: var(--border); margin: 0 2px; }
.toolbar .btn { height: 38px; width: 38px; border-radius: 8px; }
.ctx-row { display: flex; align-items: center; gap: 6px; }
.ctx-input { width: 120px; height: 28px; font: 12px var(--mono); }
.hint-pill { position: absolute; left: 50%; top: 52px; transform: translateX(-50%); padding: 4px 10px; border-radius: 12px; background: var(--primary); color: var(--primary-fg); font-size: 12px; pointer-events: none; opacity: 0; transition: opacity .2s; white-space: nowrap; }
.hint-pill.show { opacity: .92; }
.zoom-ctl { display: flex; align-items: center; gap: 2px; padding: 2px; border-radius: 8px; background: color-mix(in srgb, var(--paper) 85%, transparent); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.zoom-ctl span { min-width: 44px; text-align: center; font: 11px var(--mono); color: var(--fg-3); }

/* inspector */
.insp { display: grid; }
.insp-sec { display: grid; gap: 10px; padding: 14px; border-bottom: 1px solid var(--border); }
.insp-sec h3 { display: flex; align-items: center; justify-content: space-between; font-size: 11.5px; font-weight: 600; color: var(--fg-3); text-transform: uppercase; letter-spacing: .06em; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 6px; }
.row { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
.kv { display: flex; justify-content: space-between; gap: 8px; color: var(--fg-3); font-size: 12px; }
.kv b { color: var(--fg); font-weight: 500; font-family: var(--mono); }
.note { font-size: 12px; color: var(--fg-3); }
.note.warn { color: var(--warn); }
.actions { display: grid; grid-template-columns: repeat(auto-fill, minmax(38px, 1fr)); gap: 4px; }
.actions .btn { width: 100%; padding: 0; }

/* test strip */
.ts-bar { display: flex; align-items: center; gap: 8px; padding: 8px 10px; flex-wrap: wrap; }
.ts-input { flex: 1 1 260px; min-width: 0; }
.ts-canvas { position: relative; height: 150px; border-top: 1px solid var(--border); background: var(--paper); }
.ts-canvas canvas { position: absolute; inset: 0; width: 100%; height: 100%; touch-action: pan-y; }
.ts-opts { display: flex; align-items: center; gap: 10px; }
.ts-opts .slider-row { width: 150px; grid-template-columns: auto 1fr; }
.ts-opts .slider-label { min-width: 0; }
.ts-real { padding: 10px 14px; min-height: 150px; border-top: 1px solid var(--border); background: var(--paper); color: var(--ink); outline: none; overflow: auto; white-space: pre-wrap; word-break: break-word; }
.axis-pills { display: flex; gap: 10px; flex-wrap: wrap; }
.axis-pills .slider-row { width: 170px; }

/* features panel */
.fsec { display: grid; gap: 10px; padding: 14px; border-bottom: 1px solid var(--border); }
.fsec h3 { font-size: 13px; font-weight: 600; }
.fsec .sub { color: var(--fg-3); font-size: 12px; margin-top: -6px; }
.flist { display: grid; gap: 6px; }
.fitem { display: grid; gap: 8px; padding: 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); }
.fitem-head { display: flex; align-items: center; gap: 8px; min-width: 0; }
.fitem-head .seqs { font: 13px var(--mono); flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fitem canvas { width: 44px; height: 36px; flex: none; border-radius: 4px; background: var(--paper); border: 1px solid var(--border); }
.rule-sentence { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 6px 8px; font-size: 12px; color: var(--fg-3); }
.forms-table { display: grid; gap: 2px; font-size: 12px; }
.forms-row { display: grid; grid-template-columns: 28px repeat(5, 1fr); gap: 2px; align-items: center; }
.forms-row .fh { color: var(--fg-4); font: 10px var(--mono); text-align: center; }
.fbtn { height: 24px; border: 1px solid var(--border); border-radius: 4px; background: var(--bg); font: 11px var(--mono); color: var(--fg-4); cursor: pointer; padding: 0; }
.fbtn.have { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.fbtn:hover { border-color: var(--border-strong); }
.fea-errors { display: grid; gap: 4px; font: 12px var(--mono); color: var(--danger); }
details.adv > summary { cursor: pointer; color: var(--fg-3); font-size: 12px; font-weight: 500; list-style: none; display: flex; align-items: center; gap: 6px; }
details.adv > summary::-webkit-details-marker { display: none; }
details.adv[open] > summary .ic { transform: rotate(90deg); }
pre.code { margin: 0; padding: 10px; max-height: 300px; overflow: auto; border: 1px solid var(--border); border-radius: 6px; background: var(--muted); font: 11.5px/1.5 var(--mono); white-space: pre; }

/* writing pads (setup and word capture) */
.pad { position: relative; border: 1px solid var(--border); border-radius: 10px; background: var(--paper); overflow: hidden; touch-action: none; }
.pad canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.pad .prompt { position: absolute; left: 12px; top: 8px; color: var(--fg-4); font-size: 13px; pointer-events: none; }
.pad .pad-tools { position: absolute; right: 6px; top: 6px; display: flex; gap: 2px; }
.pad.done { border-color: color-mix(in srgb, var(--ok) 40%, var(--border)); }
.cells { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.cells .pad { height: 190px; }
.cell-ch { position: absolute; left: 10px; top: 6px; font-size: 20px; color: var(--fg-3); pointer-events: none; }

/* setup wizard */
.setup { min-height: 100%; display: grid; grid-template-rows: auto 1fr auto; padding-top: env(safe-area-inset-top); padding-bottom: env(safe-area-inset-bottom); }
.setup-top { display: flex; align-items: center; gap: 12px; padding: 10px max(16px, env(safe-area-inset-right)) 10px max(16px, env(safe-area-inset-left)); border-bottom: 1px solid var(--border); }
.steps { display: flex; gap: 6px; align-items: center; flex: 1; min-width: 0; overflow-x: auto; scrollbar-width: none; }
.step { display: flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 14px; color: var(--fg-4); font-size: 12px; white-space: nowrap; }
.step .n { display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; border: 1px solid currentColor; font: 10px var(--mono); }
.step.cur { color: var(--fg); background: var(--muted); }
.step.done { color: var(--ok); }
.setup-body { overflow: auto; padding: 24px max(16px, env(safe-area-inset-right)) 24px max(16px, env(safe-area-inset-left)); }
.setup-inner { max-width: 1040px; margin: 0 auto; display: grid; gap: 18px; }
.setup-inner h1 { font-size: 24px; font-weight: 600; letter-spacing: -.02em; text-wrap: balance; }
.setup-inner .lead { color: var(--fg-3); font-size: 14px; max-width: 62ch; }
.setup-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px max(16px, env(safe-area-inset-right)) 12px max(16px, env(safe-area-inset-left)); border-top: 1px solid var(--border); background: var(--bg); }
.progress { height: 4px; border-radius: 4px; background: var(--muted); overflow: hidden; flex: 1; max-width: 360px; }
.progress > i { display: block; height: 100%; background: var(--primary); transition: width .2s; }
.wordpad { height: 240px; }
.seg-view { height: 200px; }
.legend { display: flex; flex-wrap: wrap; gap: 6px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.stat { padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel); }
.stat b { display: block; font-size: 20px; font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.stat span { color: var(--fg-3); font-size: 12px; }
.choice-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.choice { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; cursor: pointer; background: var(--bg); }
.choice:has(input:checked) { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.choice input { margin-top: 3px; accent-color: var(--primary); }
.choice b { display: block; }
.choice span { color: var(--fg-3); font-size: 12px; }

/* drawers on narrow screens */
.drawer-scrim { display: none; }
@media (max-width: 1100px) {
  .work { grid-template-columns: 236px minmax(0, 1fr) 248px; }
}
@media (max-width: 920px) {
  .work { grid-template-columns: minmax(0, 1fr); grid-template-areas: "center" "test"; }
  .left, .right { position: fixed; z-index: 40; top: calc(48px + env(safe-area-inset-top)); bottom: 0; width: min(320px, 88vw); box-shadow: var(--shadow); transition: transform .2s ease; }
  .left { left: 0; transform: translateX(-102%); padding-left: env(safe-area-inset-left); }
  .right { right: 0; transform: translateX(102%); padding-right: env(safe-area-inset-right); }
  .work.show-left .left, .work.show-right .right { transform: none; }
  .drawer-scrim { display: block; position: fixed; inset: 0; z-index: 39; background: rgba(0,0,0,.25); opacity: 0; pointer-events: none; transition: opacity .2s; }
  .work.show-left .drawer-scrim, .work.show-right .drawer-scrim { opacity: 1; pointer-events: auto; }
  .ts-canvas { height: 120px; }
  .topbar .wide-only { display: none; }
}
@media (min-width: 921px) { .narrow-only { display: none !important; } }
@media (max-width: 560px) {
  .toolbar .seg button { min-width: 36px; padding: 0 6px; }
  .toolbar .seg button span { display: none; }
  .topbar .title button { max-width: 120px; }
  .cells { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }