/* ============================================================================
   Schedule — layout
   Gantt timeline: time is the axis, each order a bar from start → delivery,
   grouped by deadline-risk band. Brand-restrained — stage is encoded as a
   NEUTRAL greyscale ramp (prep → production gets darker), and the only real
   colour is feedback: an error-token diamond for a late delivery, a
   success-token diamond for a delivered one. Layout only; --sds-* for the rest.
   ========================================================================== */

/* ---- App grid + rail + pagehead (shared shell) -------------------------- */
.app { display: grid; grid-template-columns: 224px 1fr; min-height: calc(100vh - 34px); }
.rail {
  border-right: 1px solid var(--sds-color-border); background: var(--sds-color-surface);
  position: sticky; top: 34px; height: calc(100vh - 34px);
  display: flex; flex-direction: column; padding: var(--sds-space-400) var(--sds-space-300);
  gap: var(--sds-space-200); overflow: auto;
}
.brand { display: flex; align-items: center; gap: 10px; padding: var(--sds-space-200) var(--sds-space-200) var(--sds-space-300); }
.brand sds-logo { --sds-logo-height: 22px; height: 22px; display: inline-flex; }
.brand .product { font-family: var(--sds-font-family-headline); font-weight: var(--sds-font-weight-bold); font-size: 16px; letter-spacing: .01em; }
.brand .product .sub { color: var(--sds-color-text-muted); font-weight: var(--sds-font-weight-regular); }
.rail sds-sidenav { width: 100%; }

.main { min-width: 0; display: flex; flex-direction: column; }
.pagehead {
  display: flex; align-items: flex-end; gap: var(--sds-space-400);
  padding: var(--sds-space-500) var(--sds-space-600) var(--sds-space-400);
  border-bottom: 1px solid var(--sds-color-border);
}
.pagehead .title { font-family: var(--sds-font-family-headline); font-size: var(--sds-type-headline-4-size); line-height: var(--sds-type-headline-4-line); font-weight: var(--sds-type-headline-4-weight); margin: 0; }
.pagehead .sub { color: var(--sds-color-text-muted); font-size: var(--sds-type-body-small-size); margin-top: var(--sds-space-100); }
.pagehead .sub b { color: var(--sds-color-text); font-variant-numeric: tabular-nums; }
.pagehead .actions { margin-left: auto; display: flex; align-items: center; gap: var(--sds-space-200); }
.pagehead .actions sds-search { width: 240px; }
.pagehead .grp { width: 190px; }

.viewseg {
  display: inline-flex; gap: 2px; margin: var(--sds-space-400) var(--sds-space-600) 0;
  padding: 3px; align-self: flex-start; background: var(--sds-color-surface-strong);
  border: 1px solid var(--sds-color-border); border-radius: var(--sds-radius-pill);
}
.viewseg .seg { font-size: var(--sds-type-body-small-size); font-weight: var(--sds-font-weight-bold); color: var(--sds-color-text-muted); padding: 6px 14px; border-radius: var(--sds-radius-pill); cursor: pointer; white-space: nowrap; }
.viewseg a.seg:hover { color: var(--sds-color-text); background: var(--sds-color-surface-hover); }
.viewseg .seg.on { background: var(--sds-color-surface); color: var(--sds-color-text); box-shadow: 0 1px 2px rgba(0,0,0,.12); }

/* ---- Legend ------------------------------------------------------------- */
.legend {
  display: flex; align-items: center; gap: var(--sds-space-400); flex-wrap: wrap;
  padding: var(--sds-space-400) var(--sds-space-600) 0;
  font-size: var(--sds-type-body-small-size); color: var(--sds-color-text-muted);
}
.legend .lg { display: inline-flex; align-items: center; gap: 7px; }
.legend .push { margin-left: var(--sds-space-300); }
.legend .sw { width: 18px; height: 10px; border-radius: var(--sds-radius-s); flex: none; }
.legend .sw.prep { background: var(--sds-color-surface-strong); box-shadow: inset 0 0 0 1px var(--sds-color-border-strong); }
.legend .sw.eng  { background: var(--sds-color-border-strong); }
.legend .sw.prod { background: var(--sds-color-text-muted); }
.legend .sw.comp { background: var(--sds-color-text); opacity: .5; }
.legend .diamond { width: 10px; height: 10px; background: var(--sds-color-text); transform: rotate(45deg); flex: none; }
.legend .todayk { width: 2px; height: 14px; background: var(--sds-color-text); opacity: .4; flex: none; border-radius: 1px; }

/* ---- Gantt -------------------------------------------------------------- */
.gantt { padding: var(--sds-space-400) var(--sds-space-600) var(--sds-space-700); }
:root { --lbl-w: 230px; }
.plot { position: relative; }
/* neutral "now" reference line, bounded to the plot */
.todayline { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--sds-color-text); opacity: .28; z-index: 1; pointer-events: none; }

.scale { display: grid; grid-template-columns: var(--lbl-w) 1fr; align-items: end; margin-bottom: var(--sds-space-300); }
.scale .gutter { font-family: var(--sds-font-family-headline); font-weight: var(--sds-font-weight-bold); font-size: var(--sds-type-body-small-size); color: var(--sds-color-text-muted); }
.scale .weeks { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); border-bottom: 1px solid var(--sds-color-border); }
.scale .weeks span { font-size: var(--sds-type-footnote-size); color: var(--sds-color-text-muted); padding: 0 0 var(--sds-space-200) var(--sds-space-200); border-left: 1px solid var(--sds-color-border); font-variant-numeric: tabular-nums; }

.grp { margin-top: var(--sds-space-400); }
.grp-h {
  font-size: var(--sds-type-footnote-size); font-weight: var(--sds-font-weight-bold);
  letter-spacing: .04em; text-transform: uppercase; color: var(--sds-color-text-muted);
  padding: var(--sds-space-300) 0 var(--sds-space-200);
}
.grp-h .num { margin-left: 6px; }

.track { display: grid; grid-template-columns: var(--lbl-w) 1fr; align-items: center; min-height: 46px; border-top: 1px solid var(--sds-color-border); }
.row-lbl { display: flex; align-items: center; gap: var(--sds-space-200); padding-right: var(--sds-space-400); }
.row-lbl.risk { box-shadow: inset 3px 0 0 var(--sds-color-error); padding-left: var(--sds-space-300); }
.row-lbl .rn { font-weight: var(--sds-font-weight-bold); font-size: var(--sds-type-body-small-size); line-height: 1.25; }
.row-lbl .rsub { font-size: var(--sds-type-footnote-size); color: var(--sds-color-text-muted); margin-top: 1px; }
.track.done { opacity: .7; }

.lane {
  position: relative; height: 100%; min-height: 46px;
  background:
    repeating-linear-gradient(90deg, var(--sds-color-border) 0 1px, transparent 1px calc(20% ));
}
.bar {
  position: absolute; top: 50%; transform: translateY(-50%); height: 16px;
  border-radius: var(--sds-radius-pill); min-width: 10px;
}
/* neutral greyscale stage ramp — not hue */
.bar.prep { background: var(--sds-color-surface-strong); box-shadow: inset 0 0 0 1px var(--sds-color-border-strong); }
.bar.eng  { background: var(--sds-color-border-strong); }
.bar.prod { background: var(--sds-color-text-muted); }
.bar.comp { background: var(--sds-color-text); opacity: .4; }

.diamond { position: absolute; top: 50%; width: 11px; height: 11px; background: var(--sds-color-text); transform: translate(-50%, -50%) rotate(45deg); }
.diamond.late { background: var(--sds-color-error); box-shadow: 0 0 0 4px color-mix(in srgb, var(--sds-color-error) 16%, transparent); }
.diamond.ok { background: var(--sds-color-success); }
.duetxt { position: absolute; top: 50%; transform: translateY(-50%); font-size: var(--sds-type-footnote-size); color: var(--sds-color-text-muted); white-space: nowrap; }
.duetxt.crit { color: var(--sds-color-error); font-weight: var(--sds-font-weight-bold); }
.duetxt.ok { color: var(--sds-color-success); font-weight: var(--sds-font-weight-bold); }

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; } .rail { display: none; }
  :root { --lbl-w: 150px; }
}