/* ============================================================================
   milling-direction / demo.css

   Every colour is a token from msu-theme.css; nothing here defines one.
   Gold and red-orange are fills and strokes only, never text (contrast
   rules 1 and 2 in the token layer). The panel, control and print shapes
   follow the engineering labs in app.css, so this reads as one of them.
   ==========================================================================*/

[data-interactive="milling-direction"] {
  margin: 1.5rem 0;
  padding: clamp(1rem, 3vw, 1.5rem);
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  min-width: 0;
  display: flex; flex-direction: column; gap: 1rem;
}

/* The paper figure is what a reader without JavaScript, and every printout,
   gets. With the live demo running it steps aside on screen only. */
.mill-static { margin: 0; display: flex; flex-direction: column; gap: .75rem; }
.mill-static-panels {
  display: grid; gap: .75rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
}
.mill-static figcaption { color: var(--ink-soft); font-size: .92rem; }
[data-interactive="milling-direction"].is-live .mill-static { display: none; }
[data-mill-live] { display: flex; flex-direction: column; gap: 1rem; min-width: 0; }
[data-mill-live]:empty { display: none; }

/* ---- toolbar ------------------------------------------------------------*/
.mill-toolbar {
  display: flex; flex-wrap: wrap; gap: .6rem 1rem;
  align-items: center; justify-content: space-between;
}
.mill-seg, .mill-transport { display: flex; flex-wrap: wrap; gap: .4rem; }
[data-interactive="milling-direction"] button,
[data-interactive="milling-direction"] select {
  min-height: 2.75rem;
  padding: .5rem .85rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-xs);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-display); font-weight: 700; font-size: .92rem;
  letter-spacing: .02em; line-height: 1.2;
  cursor: pointer;
}
[data-interactive="milling-direction"] button:hover { background: var(--surface-2); }
.mill-seg button[aria-pressed="true"] {
  border-color: var(--accent); color: var(--accent); background: var(--surface-2);
  box-shadow: inset 0 -3px 0 var(--accent);
}
[data-interactive="milling-direction"] .mill-play {
  min-width: 6.5rem;
  border-color: var(--accent); background: var(--accent); color: var(--paper);
}
[data-interactive="milling-direction"] .mill-play:hover { background: var(--accent); filter: brightness(1.08); }
[data-interactive="milling-direction"] :is(button, select, input, .mill-stage):focus-visible {
  outline: 3px solid var(--cat2);
  outline-offset: 2px;
}

/* ---- the drawing --------------------------------------------------------*/
.mill-stage {
  display: grid; gap: .75rem;
  grid-template-columns: minmax(0, 1fr);
  border-radius: var(--radius-sm);
}
.mill-stage[data-view="compare"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 44rem) { .mill-stage[data-view="compare"] { grid-template-columns: minmax(0, 1fr); } }
.mill-panel, .mill-static-panels > div {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  min-width: 0;
}
.mill-panel[hidden] { display: none; }
.mill-svg, .mill-graph-svg { display: block; width: 100%; height: auto; }

.mill-work    { fill: var(--surface-2); stroke: var(--ink-soft); stroke-width: 1.5; }
.mill-stock   { fill: color-mix(in srgb, var(--msu-liteblue) 16%, var(--surface-2)); stroke: none; }
.mill-surface { stroke: var(--ink-soft); stroke-width: 1.5; stroke-dasharray: 5 5; fill: none; }
.mill-marks   { stroke: var(--ink-soft); stroke-width: 2; opacity: .45; fill: none; }
.mill-feed    { stroke: var(--accent); stroke-width: 5; fill: none; }
.mill-feed-head { fill: var(--accent); }
.mill-body    { fill: var(--ink-soft); }
.mill-spin    { stroke: var(--ink-soft); stroke-width: 3; fill: none; }
.mill-spin-head { fill: var(--ink-soft); }
.mill-edgepath { stroke: var(--accent); stroke-width: 2; stroke-dasharray: 4 5; fill: none; }
/* The slice: where the metal was, outlined. The chip: where it went. */
.mill-slice   {
  fill: color-mix(in srgb, var(--msu-gold) 22%, transparent);
  stroke: var(--msu-gold); stroke-width: 2; stroke-dasharray: 5 3; stroke-linejoin: round;
}
.mill-chip    { fill: var(--msu-gold); stroke: var(--ink); stroke-width: 1.5; stroke-linejoin: round; }
.mill-chip.is-free { stroke-width: 1.2; }
.mill-story-cell { fill: var(--paper); stroke: var(--rule); stroke-width: 2; }
.mill-cue-tool  { fill: var(--ink-soft); stroke: var(--ink); stroke-width: 1; }
.mill-cue-helix { fill: none; stroke: var(--paper); stroke-width: 1.5; opacity: .7; }
.mill-cue-cut   { fill: none; stroke: var(--ink); stroke-width: 2; stroke-dasharray: 8 3 2 3; }
.mill-cue-arrow { fill: none; stroke: var(--ink); stroke-width: 2; }
.mill-cue-head  { fill: var(--ink); }
.mill-force   { stroke: var(--msu-redorange); stroke-width: 4; fill: none; stroke-linecap: round; }
.mill-force-head { fill: var(--msu-redorange); }
.mill-contact { fill: var(--paper); stroke: var(--accent); stroke-width: 3; }
.mill-mark    { fill: var(--ink); }
.mill-rub     { fill: none; stroke: var(--msu-redorange); stroke-width: 2.5; stroke-dasharray: 3 3; }
.mill-bite    { fill: none; stroke: var(--msu-gold); stroke-width: 3.5; }

.mill-t {
  font-family: var(--f-display); font-size: 18px; font-weight: 600;
  fill: var(--ink);
  paint-order: stroke; stroke: var(--paper); stroke-width: 4px; stroke-linejoin: round;
}
.mill-t-soft  { fill: var(--ink-soft); font-weight: 500; }
.mill-t-title { font-size: 24px; font-weight: 700; }
.mill-t-tag   { font-size: 20px; font-weight: 700; }
.mill-t-feed  { fill: var(--accent); font-weight: 700; }
.mill-t-cue   { fill: var(--ink-soft); font-size: 14px; font-weight: 600; }

/* ---- readouts -----------------------------------------------------------*/
.mill-readouts {
  display: grid; gap: .75rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
}
.mill-read {
  display: flex; flex-direction: column; gap: .15rem;
  padding: .75rem .9rem;
  border-inline-start: .25rem solid var(--accent);
  background: var(--surface-2);
  min-width: 0;
}
.mill-read[hidden] { display: none; }
.mill-read .k {
  color: var(--ink-soft);
  font-family: var(--f-display); font-size: .7rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
}
.mill-read .v { font-family: var(--f-display); font-size: 1.12rem; font-weight: 700; }
.mill-read .t { font-size: .95rem; }
.mill-read .p { font-size: .9rem; color: var(--ink-soft); }
.mill-read .t:empty, .mill-read .p:empty { display: none; }

/* ---- sliders ------------------------------------------------------------*/
.mill-controls {
  margin: 0; padding: 0; border: 0; min-width: 0;
  display: grid; gap: .9rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  align-items: end;
}
.mill-controls p { margin: 0; display: grid; gap: .35rem; min-width: 0; }
.mill-controls label {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: .1rem .5rem;
  color: var(--ink);
  font-family: var(--f-display); font-size: .78rem; font-weight: 700;
  letter-spacing: .045em; line-height: 1.25; text-transform: uppercase;
}
.mill-out { color: var(--ink-soft); text-transform: none; letter-spacing: 0; font-weight: 600; }
.mill-controls input[type="range"] {
  width: 100%; min-height: 2.75rem; margin: 0;
  accent-color: var(--accent);
  background: transparent;
}
.mill-controls select { width: 100%; }

.mill-graph {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  padding: .4rem .5rem 0;
}
.mill-axis  { stroke: var(--ink-soft); stroke-width: 1.5; fill: none; }
.mill-peak  { stroke: var(--rule); stroke-width: 1.5; stroke-dasharray: 6 5; fill: none; }
.mill-curve { fill: none; stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.mill-curve-climb        { stroke: var(--accent); }
.mill-curve-conventional { stroke: var(--ink); stroke-dasharray: 10 7; }
.mill-curve.is-dim { opacity: .3; }
.mill-dot { stroke: var(--paper); stroke-width: 3; }
.mill-dot-climb        { fill: var(--accent); }
.mill-dot-conventional { fill: var(--ink); }

.mill-keys { margin: 0; color: var(--ink-soft); font-size: .88rem; }

/* ---- presentation: big, but never taller than the panel ----------------*/
.presenting [data-interactive="milling-direction"] { font-size: 1.08rem; }
.presenting .mill-stage[data-view="compare"] .mill-svg { max-height: 46vh; }
.presenting .mill-stage:not([data-view="compare"]) .mill-svg { max-height: 56vh; }
.presenting .mill-graph-svg { max-height: 22vh; }
.presenting [data-interactive="milling-direction"] :is(button, select) { min-height: 3rem; }

.mill-story-hint { display: none; }
@media screen and (max-width: 44rem) {
  .mill-story-hint { display: block; color: var(--ink-soft); }
  .mill-story-figure { max-width: 100%; overflow-x: auto; }
  .mill-story-figure > svg { min-width: 1000px; }
}

@media (max-width: 36rem) {
  [data-interactive="milling-direction"] { padding: 1rem; }
  .mill-toolbar { flex-direction: column; align-items: stretch; }
  .mill-seg button, .mill-transport button { flex: 1 1 auto; }
}

/* Paper: the static figure, in ink, every time. The live demo's state when
   the print dialog opened is not a teaching choice anyone made. */
@media print {
  [data-interactive="milling-direction"] {
    break-inside: avoid;
    background: #FFF !important; border-color: #777 !important; color: #111 !important;
  }
  [data-interactive="milling-direction"].is-live .mill-static { display: flex; }
  [data-mill-live] { display: none !important; }
  .mill-static-panels > div { background: #FFF !important; border-color: #999 !important; }
}