/* ============================================================
   Vidi — веб-демо. Хром собран на токенах vidi-design-system
   (vidi-tokens.css): сцена · стекло · поверхность, один акцент,
   цвета плоскостей только для плоскостей, янтарь — измерение.
   Отступления ради контраста WCAG AA помечены «AA:».
   ============================================================ */

@font-face { font-family: "Golos Fallback"; src: local("Arial Bold"), local("Arial-BoldMT"); font-weight: 700 900; size-adjust: 103.5%; ascent-override: 94.7%; descent-override: 21.3%; line-gap-override: 0%; }
@font-face { font-family: "Inter Fallback"; src: local("Arial"), local("ArialMT"); font-weight: 400 500; size-adjust: 106.2%; ascent-override: 91.3%; descent-override: 22.6%; line-gap-override: 0%; }
@font-face { font-family: "Inter Fallback"; src: local("Arial Bold"), local("Arial-BoldMT"); font-weight: 600 700; size-adjust: 102%; ascent-override: 95.1%; descent-override: 23.5%; line-gap-override: 0%; }

:root {
  --ground: #0A0D14;
  --void: #000000;
  --surface: #12161F;
  --surface-2: #1B212C;
  --surface-3: #232A37;
  --line: rgba(255,255,255,.08);
  --line-strong: rgba(255,255,255,.14);

  --glass-bg: rgba(13,16,23,.66);
  --glass-line: rgba(255,255,255,.12);
  --glass-shadow: 0 12px 40px rgba(0,0,0,.45);
  --glass-blur: blur(26px) saturate(150%);
  --radius-glass: 14px;
  --radius-glass-sm: 11px;

  --ink: #F4F6FA;
  --ink-dim: #93A0B4;
  --ink-faint: #7A8698;

  --signal: #4C8EFF;
  --signal-ink: #DCE8FF;
  --signal-tint: rgba(76,142,255,.14);
  --signal-tint-strong: rgba(76,142,255,.26);
  --signal-fill: #2A54AA;   /* глубокий синий под белый текст — 7:1; как на лендинге */
  --signal-fill-top: #2F5DB8;
  --signal-fill-bottom: #234A9C;

  --plane-axial: #4C8EFF;
  --plane-sagittal: #FF6B6B;
  --plane-coronal: #4ED17E;
  --plane-neutral: #B9C2D0;

  --amber: #F2C14E;         /* измерение */
  --status-good: #4ED17E;

  --radius-sm: 9px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  --font-display: "Golos Text", "Golos Fallback", "Arial Black", sans-serif;
  --font-body: "Inter", "Inter Fallback", -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --ease: cubic-bezier(.16,1,.3,1);

  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: var(--ground);
  color: var(--ink);
  font: 14px/1.5 var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
}
::selection { background: var(--signal-tint-strong); color: var(--ink); }

button, select, input { font: inherit; color: inherit; }
button { cursor: pointer; }
button:disabled { cursor: default; }
svg { flex: none; }
[hidden] { display: none !important; }

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

@media (pointer: fine) { .touch-only { display: none !important; } }
@media (pointer: coarse) { .desktop-only, .mouse-only { display: none !important; } }

:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }

/* ---------------------------------------------------------------- header */

.d-head {
  display: flex; align-items: center; gap: 14px;
  min-height: 56px;
  padding: 8px 14px;
  padding-left: max(14px, env(safe-area-inset-left));
  padding-right: max(14px, env(safe-area-inset-right));
  background: var(--ground);
  border-bottom: 1px solid var(--line);
}

.d-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-family: var(--font-display); font-weight: 900; font-size: 19px; letter-spacing: -.01em; }
.d-brand img { border-radius: 7px; }

/* badge-beta */
.d-badge { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: var(--radius-pill); background: var(--signal-tint); color: var(--signal-ink); font-family: var(--font-mono); font-size: 11px; font-weight: 500; white-space: nowrap; }
.d-study { display: flex; align-items: center; gap: 12px; color: var(--ink-faint); font-family: var(--font-mono); font-size: 12px; letter-spacing: .04em; white-space: nowrap; }
.d-study::before { content: ""; width: 1px; height: 16px; background: var(--line-strong); }
.d-head-spacer { flex: 1; }

.d-link { border: 0; background: none; padding: 8px 12px; border-radius: var(--radius-pill); color: var(--ink-dim); font-size: 14px; font-weight: 500; transition: background-color .25s var(--ease), color .25s ease; }
.d-link:hover { color: var(--ink); background: rgba(255,255,255,.06); }

/* buttons: pill, one shadow */
.d-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 38px; padding: 0 20px;
  border-radius: var(--radius-pill); border: 1px solid transparent;
  font-family: var(--font-body); font-size: 14px; font-weight: 600; white-space: nowrap; text-decoration: none;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background-color .25s ease, border-color .25s ease, filter .25s ease;
}
.d-btn svg { width: 16px; height: 16px; }
.d-btn-primary {
  background: linear-gradient(180deg, var(--signal-fill-top) 0%, var(--signal-fill-bottom) 100%); color: #F4F6FA;
  border-color: rgba(150,180,255,.22);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.16), 0 10px 24px -14px rgba(0,0,0,.9);
}
.d-btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); border-color: rgba(150,180,255,.34); }
.d-btn-ghost { background: var(--surface-3); border-color: var(--line-strong); color: var(--ink); }
.d-btn-ghost:hover { background: var(--surface-2); border-color: rgba(255,255,255,.22); transform: translateY(-1px); }
.d-btn:active { transform: translateY(0) scale(.97); }

/* ---------------------------------------------------------------- toolbar */

.d-toolbar {
  position: relative; z-index: 20;
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  padding-left: max(14px, env(safe-area-inset-left));
  padding-right: max(14px, env(safe-area-inset-right));
  background: var(--ground);
  border-bottom: 1px solid var(--line);
}

/* группы — плавающий тулбар системы: стекло, pill */
.tb-group {
  display: flex; align-items: center; gap: 2px; padding: 4px;
  border-radius: var(--radius-pill);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-line);
  box-shadow: var(--glass-shadow);
}
.tb-rel { position: relative; }
.tb-spacer { flex: 1; }

.tb-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  height: 30px; min-width: 30px; padding: 0 10px;
  border: 0; border-radius: var(--radius-pill);
  background: transparent; color: var(--ink-dim);
  font-size: 13px; font-weight: 500; white-space: nowrap;
  transition: background-color .25s ease, color .25s ease, transform .2s var(--ease);
}
.tb-btn:not(:has(.tb-label)) { padding: 0; width: 30px; }
.tb-btn svg { width: 15px; height: 15px; }
.tb-btn .tb-chev { width: 11px; height: 11px; margin-left: -3px; opacity: .7; }
.tb-btn:hover:not(:disabled) { background: rgba(255,255,255,.06); color: var(--ink); }
.tb-btn:active:not(:disabled) { transform: scale(.86); }
.tb-btn:has(.tb-label):active:not(:disabled) { transform: scale(.97); }
/* активный инструмент — заливка акцентом, иконка белая */
.tb-btn[aria-pressed="true"] { background: var(--signal-fill); color: #fff; }
.tb-btn[aria-expanded="true"] { background: rgba(255,255,255,.06); color: var(--ink); }
.tb-btn:disabled { opacity: .38; }

.tb-hd {
  gap: 7px; padding: 0 12px !important; width: auto !important;
  border: 1px solid var(--glass-line);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  font-family: var(--font-mono); font-size: 12px; color: var(--ink-dim);
}
.hd-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-faint); }
.tb-hd[data-state="loading"] .hd-dot { background: var(--signal); box-shadow: 0 0 0 3px var(--signal-tint); animation: pulse 1.2s ease-in-out infinite; }
.tb-hd[data-state="done"] { color: var(--ink); opacity: 1; }
.tb-hd[data-state="done"] .hd-dot { background: var(--status-good); box-shadow: 0 0 0 3px rgba(78,209,126,.18); }
@keyframes pulse { 50% { box-shadow: 0 0 0 6px rgba(76,142,255,.05); } }

.tb-help { border: 1px solid var(--glass-line); background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur); }

.tb-locked { display: flex; align-items: center; gap: 6px; }
.tb-locked-label { color: var(--ink-faint); font-family: var(--font-mono); font-size: 12px; margin-right: 2px; }
/* chip: surface-3, радиус 9 */
.lock-chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: 28px; padding: 0 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: var(--surface-3); color: var(--ink);
  font-size: 12.5px; font-weight: 500;
  transition: border-color .25s ease, background-color .25s ease;
}
.lock-chip svg { width: 12px; height: 12px; color: var(--ink-dim); }
.lock-chip:hover { border-color: rgba(255,255,255,.22); background: var(--surface-2); }

.tb-more { display: none; }
.pop-mobile { display: none; }
.tb-tabs { display: none; }

/* ---------------------------------------------------------------- popovers (glass) */

.pop {
  position: absolute; top: calc(100% + 8px); left: 0; z-index: 40;
  min-width: 260px; padding: 12px;
  border-radius: var(--radius-glass);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-line);
  box-shadow: var(--glass-shadow);
}
.pop-right { left: auto; right: 0; }
.pop-up { top: auto; bottom: calc(100% + 8px); min-width: 160px; padding: 6px; }

/* подпись поля: mono 10.5, caps */
.pop-title {
  display: flex; justify-content: space-between; gap: 12px;
  margin: 2px 2px 8px;
  color: var(--ink-faint);
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 500; letter-spacing: .06em; text-transform: uppercase;
}
.pop-title:not(:first-child) { margin-top: 14px; }
.pop-value { color: var(--ink-dim); letter-spacing: 0; text-transform: none; font-variant-numeric: tabular-nums; }
.pop-row { display: flex; flex-wrap: wrap; gap: 6px; }
.pop-note { margin: 10px 2px 0; color: var(--ink-dim); font-size: 12.5px; }

.chip {
  height: 28px; padding: 0 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: var(--surface-3);
  color: var(--ink);
  font-size: 12.5px; font-weight: 500; font-variant-numeric: tabular-nums;
  transition: border-color .25s ease, background-color .25s ease, color .25s ease;
}
.chip:hover { background: var(--surface-2); border-color: rgba(255,255,255,.22); }
.chip[aria-pressed="true"] { background: var(--signal-tint-strong); border-color: rgba(76,142,255,.5); color: var(--signal-ink); }

.pop-item {
  display: block; width: 100%;
  padding: 8px 10px;
  border: 0; border-radius: var(--radius-sm);
  background: none; color: var(--ink);
  text-align: left; font-size: 13.5px;
  transition: background-color .25s ease;
}
.pop-item:hover { background: rgba(255,255,255,.06); }

/* ---------------------------------------------------------------- viewer (scene: void) */

.d-viewer { position: relative; min-height: 0; overflow: hidden; background: var(--void); }
#gl { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.d-panes {
  position: absolute; inset: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2px;
  opacity: 0;
  transition: opacity .6s var(--ease);
}
.d-viewer.is-ready .d-panes { opacity: 1; }
.d-panes[data-layout="single"] { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); }
.d-panes[data-layout="single"] .pane:not(.is-focus) { display: none; }

.pane { position: relative; min-width: 0; min-height: 0; overflow: hidden; box-shadow: inset 0 0 0 1px rgba(255,255,255,.04); }
.pane-surface { position: absolute; inset: 0; touch-action: none; cursor: default; -webkit-user-select: none; user-select: none; }
.d-panes[data-active-tool="ruler"] .pane:not(.pane-3d) .pane-surface,
.d-panes[data-active-tool="angle"] .pane:not(.pane-3d) .pane-surface { cursor: crosshair; }
.pane-3d .pane-surface { cursor: grab; }
.pane-3d .pane-surface:active { cursor: grabbing; }

.pane-ov { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: hidden; }

/* анатомические метки и подписи измерений */
.ov-side { fill: var(--ink); font: 600 12px var(--font-mono); paint-order: stroke; stroke: rgba(0,0,0,.7); stroke-width: 3px; }
.ov-measure { fill: var(--amber); font: 500 12px var(--font-mono); font-variant-numeric: tabular-nums; }

/* чип плоскости: стекло, радиус 9, точка цветом плоскости + название + значение в мм */
.pane-head {
  position: absolute; top: 8px; left: 8px;
  display: inline-flex; align-items: center; gap: 2px;
  padding: 2px 11px 2px 2px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-line);
  pointer-events: none;
}
.pane-3d .pane-head { padding-right: 2px; }
.pane-title {
  pointer-events: auto;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 8px 5px 9px;
  border: 0; border-radius: 7px;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-body); font-size: 12px; font-weight: 500;
  transition: background-color .25s ease;
}
.pane-title::before { content: ""; order: -1; width: 6px; height: 6px; border-radius: 50%; background: var(--c); }
.pane-title svg { order: 3; width: 10px; height: 10px; color: var(--ink-faint); }
.pane-title:hover { background: rgba(255,255,255,.06); }
.pane-offset { color: var(--ink-dim); font: 400 11.5px var(--font-mono); font-variant-numeric: tabular-nums; }

/* ползунок срезов */
.pane-scrub { position: absolute; top: 50px; bottom: 50px; right: 4px; width: 22px; touch-action: none; cursor: ns-resize; opacity: 0; transition: opacity .25s ease; }
.pane-scrub::before { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; width: 4px; margin-left: -2px; border-radius: 2px; background: var(--surface-3); }
.pane-scrub-thumb { position: absolute; left: 50%; width: 16px; height: 16px; margin: -8px 0 0 -8px; border-radius: 50%; background: #fff; box-shadow: 0 2px 6px rgba(0,0,0,.55); }
.pane:hover .pane-scrub { opacity: .6; }
.pane-scrub:hover, .pane-scrub.is-active { opacity: 1 !important; }
@media (pointer: coarse) {
  .pane-scrub { opacity: .85; width: 34px; right: 0; }
  .pane-scrub-thumb { width: 20px; height: 20px; margin: -10px 0 0 -10px; }
}

/* 3D-тулбар: плавает над снимком — стекло */
.pane-3d { container-type: inline-size; }
.vol-bar {
  position: absolute; left: 14px; right: 14px; bottom: 14px;
  display: flex; align-items: center; gap: 4px;
  padding: 6px;
  border-radius: var(--radius-glass);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-line);
  box-shadow: var(--glass-shadow);
}
.vb-sep { width: 1px; height: 16px; background: var(--line-strong); margin: 0 4px; }
.vb-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 2px;
  height: 30px; min-width: 30px; padding: 0;
  border: 0; border-radius: var(--radius-pill);
  background: transparent; color: var(--ink-dim);
  transition: background-color .25s ease, color .25s ease, transform .2s var(--ease);
}
.vb-btn:has(.tb-chev) { padding: 0 8px; }
.vb-btn svg { width: 15px; height: 15px; }
.vb-btn .tb-chev { width: 11px; height: 11px; }
.vb-btn:hover { background: rgba(255,255,255,.06); color: var(--ink); }
.vb-btn:active { transform: scale(.86); }
.vb-btn[aria-pressed="true"] { background: var(--signal); color: #fff; }
.vb-btn[aria-expanded="true"] { background: rgba(255,255,255,.06); color: var(--ink); }
.vb-value { min-width: 40px; color: var(--ink-dim); font: 400 11.5px var(--font-mono); font-variant-numeric: tabular-nums; text-align: right; }

/* поле: surface-3, радиус 8 */
.vol-select { position: relative; display: inline-flex; align-items: center; }
.vol-select select {
  -webkit-appearance: none; appearance: none;
  height: 30px; padding: 0 28px 0 11px;
  border-radius: 8px; border: 1px solid var(--line-strong);
  background: var(--surface-3); color: var(--ink);
  font-size: 13px; cursor: pointer;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.vol-select select:focus-visible { outline: none; border-color: var(--signal); box-shadow: 0 0 0 3px var(--signal-tint); }
.vol-select select option { background: var(--surface-2); }
.vol-select svg { position: absolute; right: 9px; width: 11px; height: 11px; pointer-events: none; color: var(--ink-dim); }

.vol-clip { display: flex; align-items: center; gap: 6px; flex: 1; min-width: 0; }
/* выключенный срез: гасим ползунок и кнопку, подписи остаются читаемыми (AA) */
.vol-clip > input[type="range"], .vol-clip > #clip-flip { opacity: .45; transition: opacity .25s ease; }
.vol-clip.is-on > input[type="range"], .vol-clip.is-on > #clip-flip { opacity: 1; }
.vol-select-sm select { color: var(--ink-dim); }

/* слайдер системы */
.vol-clip input[type="range"] { -webkit-appearance: none; appearance: none; flex: 1; min-width: 60px; max-width: 150px; height: 18px; margin: 0; background: transparent; cursor: pointer; }
.vol-clip input[type="range"]::-webkit-slider-runnable-track { height: 4px; border-radius: 2px; background: var(--surface-3); }
.vol-clip input[type="range"]::-moz-range-track { height: 4px; border-radius: 2px; background: var(--surface-3); }
.vol-clip input[type="range"]::-moz-range-progress { height: 4px; border-radius: 2px; background: var(--signal); }
.vol-clip input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; margin-top: -6px; border-radius: 50%; background: #fff; border: 0; box-shadow: 0 2px 6px rgba(0,0,0,.55); }
.vol-clip input[type="range"]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 0; box-shadow: 0 2px 6px rgba(0,0,0,.55); }

@container (max-width: 560px) { .vol-select-sm, .vb-value { display: none; } }
@container (max-width: 380px) { .vb-sep, #vol-reset { display: none; } }

/* ---------------------------------------------------------------- loader & hint */

.d-loader {
  position: absolute; inset: 0; z-index: 10;
  display: grid; place-items: center; padding: 24px;
  background:
    radial-gradient(1100px 380px at 12% -4%, rgba(120,210,255,.085), transparent 62%),
    radial-gradient(420px 760px at 96% 12%, rgba(255,180,110,.055), transparent 58%),
    radial-gradient(820px 640px at 78% 96%, rgba(150,255,200,.05), transparent 60%),
    var(--ground);
}
.d-loader-card { width: min(360px, 100%); text-align: center; }
.d-loader-card img { margin: 0 auto 16px; border-radius: 13px; border: 1px solid var(--line-strong); box-shadow: 0 16px 36px -22px rgba(0,0,0,.75); }
.d-loader-title { font-family: var(--font-display); font-weight: 800; font-size: 18px; line-height: 1.3; text-wrap: balance; }
.d-loader-text { margin: 8px 0 16px; color: var(--ink-dim); font-size: 13.5px; text-wrap: pretty; }
.d-progress { height: 4px; margin: 20px 0 10px; border-radius: 2px; overflow: hidden; background: var(--surface-3); }
.d-progress i { display: block; height: 100%; background: var(--signal); transform: scaleX(0); transform-origin: left; transition: transform .2s linear; }
.d-loader-meta { color: var(--ink-faint); font: 12px var(--font-mono); font-variant-numeric: tabular-nums; }

.d-hint {
  position: absolute; z-index: 5; left: 14px; bottom: 14px;
  max-width: calc(50% - 28px);
  display: flex; align-items: center; gap: 10px;
  padding: 8px 8px 8px 14px;
  border-radius: var(--radius-glass);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-line);
  box-shadow: var(--glass-shadow);
  color: var(--ink-dim);
  font-size: 12.5px;
}
.d-hint p { margin: 0; }
.d-hint b { color: var(--ink); font-weight: 600; }
.d-hint-close { flex: none; display: grid; place-items: center; width: 30px; height: 30px; border: 0; border-radius: 50%; background: transparent; color: var(--ink-dim); transition: background-color .25s ease, color .25s ease; }
.d-hint-close svg { width: 14px; height: 14px; }
.d-hint-close:hover { background: rgba(255,255,255,.06); color: var(--ink); }
.d-panes[data-layout="single"] ~ .d-hint { max-width: calc(100% - 80px); }

/* ---------------------------------------------------------------- footer */

.d-foot {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 18px;
  padding: 8px 14px;
  padding-bottom: max(8px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: var(--ground);
  color: var(--ink-faint);
  font-size: 12px;
  text-align: center;
}
.d-foot b { color: var(--ink-dim); font-weight: 600; }

/* ---------------------------------------------------------------- dialogs (floating: glass) */

.d-dialog {
  width: min(760px, calc(100vw - 28px));
  max-height: calc(100dvh - 28px);
  padding: 0;
  overflow: auto;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-glass);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  color: var(--ink);
  box-shadow: var(--glass-shadow);
}
.d-dialog-sm { width: min(560px, calc(100vw - 28px)); }
.d-dialog::backdrop { background: rgba(2,6,16,.72); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.d-dialog[open] { animation: dlg-in .45s var(--ease); }
@keyframes dlg-in { from { opacity: 0; transform: translateY(10px) scale(.985); } }

.dlg-body { position: relative; }
.dlg-close {
  position: absolute; top: 12px; right: 12px; z-index: 1;
  display: grid; place-items: center; width: 30px; height: 30px;
  border: 1px solid var(--glass-line); border-radius: 50%;
  background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  color: var(--ink);
  transition: transform .2s var(--ease);
}
.dlg-close svg { width: 14px; height: 14px; }
.dlg-close:active { transform: scale(.86); }
.dlg-img { display: block; width: 100%; height: auto; aspect-ratio: 1600 / 960; object-fit: cover; background: var(--void); }
.dlg-content { padding: 22px 24px 24px; }
.dlg-content h2 { margin: 0 0 8px; font-family: var(--font-display); font-weight: 800; font-size: 24px; line-height: 1.12; letter-spacing: -.01em; text-wrap: balance; }
.dlg-content > p { margin: 0 0 20px; color: var(--ink-dim); font-size: 14.5px; text-wrap: pretty; }
/* eyebrow */
.dlg-kicker {
  display: flex; align-items: center; gap: 10px; margin-bottom: 14px;
  color: var(--signal-ink);
  font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase;
}
.dlg-kicker svg { display: none; }
.dlg-kicker::before { content: ""; width: 22px; height: 1px; background: var(--signal); flex: none; }
.dlg-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.dlg-fine { margin: 16px 0 0 !important; color: var(--ink-faint) !important; font-family: var(--font-mono); font-size: 12px !important; }

.help-list { display: grid; grid-template-columns: auto 1fr; gap: 8px 18px; margin: 16px 0 6px; font-size: 13.5px; }
.help-list dt { color: var(--ink); font-weight: 600; }
.help-list dd { margin: 0; color: var(--ink-dim); }

/* ---------------------------------------------------------------- responsive */

@media (max-width: 1320px) {
  .tb-locked { display: none; }
  .tb-more { display: flex; padding: 0; border: 0; background: none; box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; }
  .tb-more .tb-btn { border: 1px solid var(--glass-line); background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur); }
}

@media (max-width: 1080px) {
  .tb-group:first-child .tb-label { display: none; }
  .tb-group:first-child .tb-btn { padding: 0; width: 30px; }
  .d-study { display: none; }
}

@media (max-width: 760px) {
  .d-head { gap: 8px; min-height: 52px; padding-top: max(6px, env(safe-area-inset-top)); }
  .d-link { display: none; }
  .d-btn { height: 34px; padding: 0 14px; font-size: 13.5px; }

  .d-toolbar { flex-wrap: wrap; gap: 6px; padding-top: 6px; padding-bottom: 8px; }
  .tb-tabs {
    order: -1;
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px;
    width: 100%; padding: 4px;
    border-radius: var(--radius-pill);
    background: var(--glass-bg);
    -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-line);
  }
  .tb-tabs button {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    height: 30px; border: 0; border-radius: var(--radius-pill);
    background: transparent; color: var(--ink-dim);
    font-size: 12.5px; font-weight: 500;
  }
  .tb-tabs button::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--c); }
  .tb-tabs button[aria-selected="true"] { background: rgba(255,255,255,.08); color: var(--ink); }
  .tb-label, .tb-chev { display: none; }
  .tb-btn { padding: 0; width: 30px; }
  .desktop-grid-only, .tb-edit, .tb-help { display: none; }
  .pop-mobile { display: block; margin-bottom: 8px; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
  .tb-spacer { display: none; }
  .tb-more { margin-left: auto; }
  .d-toolbar .tb-rel { position: static; }
  .d-toolbar .pop { top: calc(100% + 6px); left: 14px; right: 14px; min-width: 0; }

  .d-hint { max-width: calc(100% - 60px) !important; }
  .d-foot span:first-child { display: none; }
  .help-list { grid-template-columns: 1fr; gap: 2px; }
  .help-list dd { margin-bottom: 8px; }
  .dlg-content { padding: 18px 18px 20px; }
  .dlg-content h2 { font-size: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}