/* =========================================================================
   gfxs0da · utility hub — CORE / shared design system
   Dark · near-black · red accent · JetBrains Mono · lowercase · glassmorphism
   Blends the Mosaic component language with the portfolio's ambient layer.

   Sections:
     1.  Design tokens
     2.  Reset & base
     3.  Ambient layer (bg orbs · film grain · particles · cursor glow)
     4.  App shell + tool switching
     5.  Top nav (brand · tabs · sliding indicator)
     6.  Glass panels
     7.  Sections & rows  (shared canonical — RoCalc overrides in its scope)
     8.  Buttons & chips
     9.  Sliders
    10.  Toggles
    11.  Inputs · selects · segmented
    12.  Dropzone · counter bar
    13.  Toast (shared/Mosaic style)
    14.  Reduced motion
   ========================================================================= */


/* ---------- 1. Design tokens ---------- */
:root {
  /* surfaces — pure black → dark gray (monochrome) */
  --bg:            #000000;
  --bg-1:          #060606;
  --bg-2:          #0d0d0d;
  --bg-elev:       #0d0d0d;
  --bg-hover:      #1a1a1a;

  /* text */
  --fg:            #e6e6e6;
  --fg-strong:     #fafafa;
  --muted:         #8a8a8a;
  --dim:           #555555;

  /* hairlines */
  --line:          #1c1c1c;
  --line-strong:   #2a2a2a;

  /* accent — neutral light gray (no red) */
  --accent:        #e5e5e5;
  --accent-hot:    #f5f5f5;
  --accent-deep:   #bdbdbd;
  --accent-hover:  #ffffff;
  --accent-dim:    rgba(255, 255, 255, 0.10);
  --accent-glow:   rgba(255, 255, 255, 0.16);
  --on-accent:     #000000;

  /* semantic data cues (calculator only — no red) */
  --pos:           #4ade80;   /* good deal / positive diff */
  --pos-soft:      #86efac;
  --neg:           #8a8a8a;   /* bad deal / negative diff — neutral, the sign carries it */
  --warn:          #fbbf24;   /* caution */
  --warn-dim:      rgba(251, 191, 36, 0.10);
  --warn-glow:     rgba(251, 191, 36, 0.40);

  /* glass recipe (from the portfolio's stat strips) */
  --glass-bg:      rgba(18, 18, 23, 0.55);
  --glass-bg-2:    rgba(16, 16, 20, 0.62);
  --glass-border:  rgba(255, 255, 255, 0.09);
  --glass-hi:      rgba(255, 255, 255, 0.10);
  --glass-shadow:
      0 24px 60px -22px rgba(0, 0, 0, 0.70),
      inset 0 1px 0 var(--glass-hi),
      inset 0 -1px 0 rgba(0, 0, 0, 0.30);
  --blur:          blur(16px) saturate(160%);

  --radius:        12px;
  --radius-sm:     8px;
  --radius-lg:     18px;

  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --heavy: 900 1em/1 'Arial Black', 'Arial', system-ui, sans-serif;

  --nav-h:    52px;
  --nav-top:  12px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease:     cubic-bezier(0.22, 1, 0.36, 1);
}


/* ---------- 2. Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--mono);
  font-weight: 400;
  font-size: 13.5px;
  line-height: 1.6;
  letter-spacing: -0.005em;
  color: var(--fg);
  background: var(--bg);
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* atmospheric neutral glow (static, fixed) — subtle gray depth, no color */
  background-image:
    radial-gradient(900px 600px at 88% -8%,  rgba(255, 255, 255, 0.030), transparent 55%),
    radial-gradient(760px 560px at -6% 18%,  rgba(255, 255, 255, 0.020), transparent 60%),
    radial-gradient(720px 560px at 106% 72%, rgba(255, 255, 255, 0.018), transparent 60%),
    radial-gradient(800px 520px at 30% 110%, rgba(255, 255, 255, 0.014), transparent 55%);
  background-attachment: fixed;
}

button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; padding: 0; }
input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; }
img, svg, canvas, video { display: block; max-width: 100%; }
::selection { background: var(--accent); color: var(--on-accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }


/* ---------- 3. Ambient layer ---------- */

/* slow-drifting neutral orb field behind everything */
.amb-orbs {
  position: fixed; inset: -10%;
  z-index: 0; pointer-events: none;
  background:
    radial-gradient(circle 640px at 20% 30%, rgba(255, 255, 255, 0.035), transparent 60%),
    radial-gradient(circle 560px at 80% 70%, rgba(255, 255, 255, 0.025), transparent 60%),
    radial-gradient(circle 460px at 60% 18%, rgba(255, 255, 255, 0.020), transparent 60%);
  animation: ambFloat 52s ease-in-out infinite alternate;
  will-change: transform;
}
@keyframes ambFloat {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(2%, -1.6%, 0) scale(1.04); }
  100% { transform: translate3d(-2%, 1.4%, 0) scale(1.06); }
}

/* faint editorial grid */
.amb-grid {
  position: fixed; inset: 0;
  z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(to right,  rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 85% 75% at 50% 35%, #000 30%, transparent 92%);
  -webkit-mask-image: radial-gradient(ellipse 85% 75% at 50% 35%, #000 30%, transparent 92%);
}

/* ambient soft-red particles (portfolio drift) */
.amb-particles { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.amb-particles i {
  position: absolute; border-radius: 50%;
  background: var(--accent); filter: blur(14px);
  opacity: 0; mix-blend-mode: screen;
  will-change: transform, opacity;
  animation: drift 24s ease-in-out infinite;
}
.amb-particles i:nth-child(1) { width: 10px; height: 10px; left:  8%; top: 18%; animation-duration: 23s; animation-delay:  -0s; }
.amb-particles i:nth-child(2) { width: 14px; height: 14px; left: 78%; top: 12%; animation-duration: 28s; animation-delay:  -5s; }
.amb-particles i:nth-child(3) { width:  8px; height:  8px; left: 22%; top: 65%; animation-duration: 25s; animation-delay: -10s; }
.amb-particles i:nth-child(4) { width: 16px; height: 16px; left: 88%; top: 78%; animation-duration: 31s; animation-delay:  -3s; }
.amb-particles i:nth-child(5) { width:  6px; height:  6px; left: 48%; top: 38%; animation-duration: 27s; animation-delay: -15s; }
.amb-particles i:nth-child(6) { width: 12px; height: 12px; left: 32%; top: 88%; animation-duration: 22s; animation-delay:  -8s; }
.amb-particles i:nth-child(7) { width: 10px; height: 10px; left: 65%; top: 55%; animation-duration: 29s; animation-delay: -12s; }
.amb-particles i:nth-child(8) { width: 14px; height: 14px; left: 12%; top: 42%; animation-duration: 25s; animation-delay: -18s; }
@keyframes drift {
  0%, 100% { transform: translate(0, 0) scale(0.7); opacity: 0; }
  20%, 80% { opacity: 0.35; }
  50%      { transform: translate(70px, -90px) scale(1.35); opacity: 0.5; }
}

/* film-grain overlay on top of everything */
.amb-grain {
  position: fixed; inset: 0;
  z-index: 4; pointer-events: none;
  opacity: 0.04; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}


/* ---------- 4. App shell + tool switching ---------- */
.shell {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--nav-top) + var(--nav-h) + 14px);
  min-height: 100dvh;
}

/* content-visibility (not display:none): a tool's render state is cached after
   its first paint, so re-showing it on a tab switch skips the costly first
   layout/paint. all three are warmed once behind the boot screen on load. */
.tool {
  content-visibility: hidden;
  contain-intrinsic-size: 0;
}
.tool.is-active {
  content-visibility: visible;
  animation: toolIn 0.3s var(--ease-out) both;
}
/* boot warm-up: force every tool to render once (behind the opaque #boot overlay) */
body.warming .tool { content-visibility: visible; }
/* opacity + slide only — no blur (animating filter:blur() over backdrop-filter
   panels re-rasterizes everything per frame). opacity/transform = GPU = smooth. */
@keyframes toolIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- boot / loading screen — neon-outline splash ----------
   --neon drives the glow/outline colour. swap it for e.g. #36e2ff (icy cyan)
   or #ff3da6 (hot pink) for a full GTA-style coloured neon. */
#boot {
  --neon: 255, 255, 255;          /* rgb channels for the neon glow */
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse 70% 60% at 50% 45%, #0a0a0c 0%, #000 75%);
  animation: bootFailsafe 0.4s ease 6s forwards;   /* never trap the user if JS stalls */
}
#boot .boot-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 26px;
}
#boot .boot-logo {
  width: 104px;
  height: 104px;
  border-radius: 26px;
  filter:
    drop-shadow(0 0 14px rgba(var(--neon), 0.55))
    drop-shadow(0 0 44px rgba(var(--neon), 0.26));
  animation: neonOn 1.4s ease-out both, logoFloat 2.8s ease-in-out 1.4s infinite;
}
/* neon "sign powering on" flicker, then settles */
@keyframes neonOn {
  0%   { opacity: 0; }
  6%   { opacity: 0.85; }
  9%   { opacity: 0.2; }
  13%  { opacity: 1; }
  16%  { opacity: 0.45; }
  19%  { opacity: 1; }
  24%  { opacity: 0.7; }
  27%  { opacity: 1; }
  100% { opacity: 1; }
}
@keyframes neonBreathe { 0%, 100% { opacity: 0.9; } 50% { opacity: 1; } }
@keyframes logoFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }
@keyframes bootFailsafe { to { opacity: 0; visibility: hidden; } }

body.ready #boot {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.55s ease;
}
body.ready #boot .boot-inner {
  transform: scale(1.12);
  transition: transform 0.6s var(--ease-out);
}
body.ready .shell { animation: shellIn 0.55s var(--ease-out) both; }
@keyframes shellIn {
  from { opacity: 0; transform: scale(0.992); }
  to   { opacity: 1; transform: none; }
}

/* Mosaic runs as a single-viewport app: lock body scroll while it's active */
body[data-tool="mosaic"] { overflow: hidden; }
body[data-tool="mosaic"] .shell { height: 100dvh; }


/* ---------- 5. Top nav — floating rounded pill (always rounded) ---------- */
.hubnav {
  position: fixed;
  top: var(--nav-top);
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 24px);
  max-width: 1320px;
  height: var(--nav-h);
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 16px;
  background: rgba(8, 8, 11, 0.66);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: var(--glass-shadow);
}
.hubnav__brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}
.hubnav__logo {
  height: 27px;
  width: 27px;
  border-radius: 7px;
  object-fit: cover;
  flex-shrink: 0;
  display: block;
}
.hubnav__brand .mark {
  font-size: 15px;
  font-weight: 600;
  color: var(--fg-strong);
  letter-spacing: -0.02em;
}
.hubnav__brand .handle { color: var(--accent); }
.hubnav__brand .tag {
  font-size: 10.5px;
  color: var(--dim);
  letter-spacing: 0.02em;
}

.hubnav__tabs {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  margin-left: 6px;
}
.hubnav__tab {
  position: relative;
  z-index: 1;
  padding: 8px 14px;
  font-size: 12.5px;
  color: var(--muted);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease;
}
.hubnav__tab .ico { margin-right: 7px; opacity: 0.85; }
.hubnav__tab:hover { color: var(--fg-strong); background: var(--bg-hover); }
.hubnav__tab.is-active { color: var(--fg-strong); }
.hubnav__indicator {
  position: absolute;
  z-index: 0;
  top: 50%;
  height: 30px;
  transform: translateY(-50%);
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  border: 1px solid rgba(255, 255, 255, 0.20);
  box-shadow: 0 0 18px -4px var(--accent-glow);
  transition: left 0.35s var(--ease-out), width 0.35s var(--ease-out);
  pointer-events: none;
}
.hubnav__spacer { flex: 1; }
.hubnav__note {
  font-size: 10.5px;
  color: var(--dim);
  white-space: nowrap;
}
.hubnav__note .dot { color: var(--pos); margin-right: 5px; }

@media (max-width: 720px) {
  :root { --nav-h: 88px; }
  .hubnav { flex-wrap: wrap; height: auto; min-height: var(--nav-h); align-content: center; gap: 6px 14px; padding: 8px 14px; }
  .hubnav__brand { width: 100%; }
  .hubnav__note { display: none; }
  .hubnav__tabs { margin-left: 0; }
  .hubnav__tab { padding: 6px 10px; font-size: 12px; }
  .hubnav__tab .ico { display: none; }
}


/* ---------- global hub footer ---------- */
.hub-footer {
  position: relative;
  z-index: 1;
  max-width: 1320px;
  margin: 0 auto;
  text-align: center;
  padding: 28px 16px 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}
.hub-footer .hf-brand { color: var(--fg); }
.hub-footer a {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--dim);
  transition: text-decoration-color 0.15s ease;
}
.hub-footer a:hover { text-decoration-color: var(--accent); }
.hub-footer .sep { margin: 0 9px; color: var(--dim); }
/* Mosaic is a single-viewport app — no room for the global footer */
body[data-tool="mosaic"] .hub-footer { display: none; }


/* ---------- 6. Glass panels ---------- */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
}
/* (pointer-tracked card sheen removed with the mouse glow) */
.glass--track { position: relative; }


/* ---------- 7. Sections & rows (shared canonical) ---------- */
.section { margin-bottom: 22px; }
.section:last-child { margin-bottom: 0; }
.section-header {
  margin-bottom: 10px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.section-header .num { color: var(--accent); font-size: 10px; font-weight: 600; letter-spacing: 0.04em; }
.section-header h2 { font-size: 12.5px; font-weight: 600; margin: 0; color: var(--fg-strong); text-transform: lowercase; }
.section-header .desc { margin: 0 0 0 auto; color: var(--dim); font-size: 10.5px; }

.row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  flex-wrap: wrap;
}
.row + .row { border-top: 1px solid var(--line); }
.row-label { color: var(--fg); font-size: 12.5px; }
.row-value {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.row-value .val {
  color: var(--fg-strong);
  font-size: 12px;
  min-width: 34px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}


/* ---------- 8. Buttons & chips ---------- */
.btn {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--line-strong);
  padding: 8px 16px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: border-color 0.15s, background 0.15s, color 0.15s, transform 0.1s, box-shadow 0.2s;
}
.btn:hover:not(:disabled) { border-color: var(--muted); background: var(--bg-hover); color: var(--fg-strong); }
.btn:active:not(:disabled) { transform: scale(0.97); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  padding: 8px 20px;
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.chip-row { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  color: var(--fg);
  padding: 6px 11px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: border-color 0.15s, background 0.15s, color 0.15s, transform 0.1s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.chip:hover:not(:disabled) { border-color: var(--muted); background: var(--bg-hover); color: var(--fg-strong); }
.chip:active:not(:disabled) { transform: scale(0.96); }
.chip.active { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.chip.active:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.chip-toggle::before {
  content: '';
  width: 7px; height: 7px;
  border: 1px solid var(--muted);
  border-radius: 2px;
  transition: all 0.15s;
}
.chip-toggle.active::before { background: var(--on-accent); border-color: var(--on-accent); box-shadow: inset 0 0 0 1.5px var(--accent); }
.chip-add { border-style: dashed; color: var(--muted); }
.chip-add:hover { color: var(--fg-strong); border-color: var(--accent); }
.chip-delete {
  margin-left: 2px;
  width: 13px; height: 13px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  opacity: 0.55;
  transition: all 0.15s;
  font-size: 12px;
}
.chip:hover .chip-delete { opacity: 1; }
.chip-delete:hover { background: rgba(0, 0, 0, 0.3); }


/* ---------- 9. Sliders ---------- */
input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 130px;
  height: 4px;
  background: var(--line-strong);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.15s;
}
input[type="range"]:hover::-webkit-slider-thumb,
input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.25); box-shadow: 0 0 12px var(--accent-glow); }
input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px; background: var(--accent);
  border-radius: 50%; cursor: pointer; border: none;
}


/* ---------- 10. Toggles ---------- */
.toggle { position: relative; display: inline-flex; cursor: pointer; user-select: none; }
.toggle input { position: absolute; opacity: 0; pointer-events: none; }
.toggle-switch {
  position: relative;
  width: 32px; height: 18px;
  background: var(--line-strong);
  border-radius: 999px;
  transition: background 0.18s;
}
.toggle-switch::after {
  content: '';
  position: absolute; top: 2px; left: 2px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform 0.18s, background 0.18s;
}
.toggle input:checked ~ .toggle-switch { background: var(--accent); }
.toggle input:checked ~ .toggle-switch::after { transform: translateX(14px); background: var(--on-accent); }
.toggle input:focus-visible ~ .toggle-switch { outline: 2px solid var(--accent); outline-offset: 2px; }


/* ---------- 11. Inputs · selects · segmented ---------- */
.text-input {
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  color: var(--fg-strong);
  padding: 7px 11px;
  font: inherit;
  font-size: 12.5px;
  border-radius: var(--radius-sm);
  outline: none;
  width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
.text-input::placeholder { color: var(--dim); }
.text-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }

.select-wrap { display: inline-flex; align-items: center; gap: 8px; }
.select-label { font-size: 11.5px; color: var(--muted); }
select.select {
  background: var(--bg-elev);
  color: var(--fg);
  border: 1px solid var(--line-strong);
  padding: 7px 26px 7px 11px;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  appearance: none; -webkit-appearance: none;
  border-radius: var(--radius-sm);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8' fill='%23888'><path d='M0 2l4 4 4-4z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 9px center;
  transition: border-color 0.15s, background-color 0.15s;
}
select.select:hover { border-color: var(--muted); background-color: var(--bg-hover); }
select.select:focus { outline: none; border-color: var(--accent); }
select.select option { background: var(--bg-elev); color: var(--fg); }


/* ---------- 12. Dropzone · counter bar ---------- */
.dropzone {
  border: 1px dashed var(--line-strong);
  padding: 18px 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--muted);
  font-size: 12px;
  border-radius: var(--radius);
  background: var(--bg-elev);
}
.dropzone:hover { border-color: var(--muted); color: var(--fg); background: var(--bg-hover); }
.dropzone.drag-over { border-color: var(--accent); background: var(--accent-dim); color: var(--fg-strong); }
.dropzone .main { font-weight: 500; color: var(--fg); margin-bottom: 3px; font-size: 12.5px; }
.dropzone .hint { color: var(--dim); font-size: 10.5px; }
.dropzone input[type="file"] { display: none; }

.counter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  padding: 8px 12px;
  background: var(--bg-elev);
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.counter-bar strong { color: var(--fg-strong); font-weight: 600; }
.cache-hint { color: var(--accent); font-size: 10.5px; opacity: 0; transition: opacity 0.2s; }
.cache-hint.visible { opacity: 1; }

.kbd {
  display: inline-block;
  padding: 1px 5px;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  font-size: 10px;
  color: var(--fg);
  background: var(--bg-elev);
  margin-right: 3px;
}


/* ---------- 13. Toast (shared / Mosaic style) ---------- */
.toast {
  position: fixed; bottom: 30px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  color: var(--fg);
  padding: 11px 18px;
  font-size: 12.5px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 100;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
  max-width: calc(100vw - 32px);
}
.toast::before { content: '●'; color: var(--accent); margin-right: 8px; font-size: 8px; vertical-align: middle; }
.toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast[data-type="warn"]::before { content: '⚠'; color: var(--warn); }


/* ---------- 14. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .amb-orbs, .amb-particles i { animation: none !important; }
  .amb-particles i { opacity: 0.12; }
  .tool.is-active { animation: none !important; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}