/* ============================================================================
   01 · Spec Finder (Advanced search) — layout
   Promotes concept 21 to the Sandvik design system. Search owned tools by
   engineering spec, not by name: a spec-search bar opens a parametric builder
   (class · Ø · length · grade · thread · coolant · supplier · stock) that drives
   a live result table over the dimmed full list. Side nav + single scroll main.
   Layout only; all color/space/type from --sds-* tokens. Shared vocabulary
   (.cell-item, .st, .num, .muted, review-bar) lives in ../_shared/base.css.
   Filter chips / dual-range / segmented toggles are composite controls (no single
   shipped sds-* fits) — built as token-styled buttons; selected = carbon fill so
   electric blue stays reserved for the one primary CTA (Save as smart list).
   ========================================================================== */

/* ---- App grid: rail | main ---------------------------------------------- */
.app {
  display: grid;
  grid-template-columns: 232px 1fr;
  min-height: calc(100vh - 34px);
}

/* ---- Side nav ----------------------------------------------------------- */
.rail {
  border-right: 1px solid var(--sds-color-border);
  background: var(--sds-color-surface);
  display: flex; flex-direction: column;
  padding: var(--sds-space-400) var(--sds-space-300);
  gap: var(--sds-space-200);
  position: sticky; top: 34px; align-self: start; height: calc(100vh - 34px);
}
.brand { display: flex; align-items: center; gap: 10px; padding: var(--sds-space-200) var(--sds-space-200) var(--sds-space-400); }
.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 .nav { width: 100%; }
.rail .rail-sp { flex: 1; }

/* ---- Main --------------------------------------------------------------- */
.main {
  padding: var(--sds-space-700) clamp(24px, 4vw, 56px) var(--sds-space-800);
  max-width: 1180px;
}
.pagehead { display: flex; align-items: flex-start; gap: var(--sds-space-400); margin-bottom: var(--sds-space-500); }
.pagehead h1 {
  font-family: var(--sds-font-family-headline);
  font-size: var(--sds-type-headline-3-size); line-height: var(--sds-type-headline-3-line);
  font-weight: var(--sds-type-headline-3-weight); margin: 0;
}
.pagehead .sub { color: var(--sds-color-text-muted); margin: var(--sds-space-100) 0 0; font-size: var(--sds-type-body-small-size); }
.pagehead sds-button { margin-left: auto; flex: none; }

/* ---- Spec-search bar ---------------------------------------------------- */
.searchbar {
  display: flex; align-items: center; gap: var(--sds-space-300);
  height: 52px; padding: 0 var(--sds-space-400);
  background: var(--sds-color-surface);
  border: 1px solid var(--sds-color-border-strong);
  border-radius: var(--sds-radius-l) var(--sds-radius-l) 0 0;
  border-bottom: 0;
}
.searchbar sds-icon { color: var(--sds-color-text-muted); }
.searchbar .q { flex: 1; font-size: var(--sds-type-body-large-size); color: var(--sds-color-text); }
.searchbar .mode { margin-left: auto; }
.searchbar .caret { color: var(--sds-color-text-muted); }

/* ---- Spec builder panel ------------------------------------------------- */
.panel {
  background: var(--sds-color-surface);
  border: 1px solid var(--sds-color-border-strong);
  border-radius: 0 0 var(--sds-radius-l) var(--sds-radius-l);
  padding: var(--sds-space-500) var(--sds-space-500) var(--sds-space-400);
}
.panelhead { display: flex; align-items: baseline; gap: var(--sds-space-300); margin-bottom: var(--sds-space-500); }
.panelhead h2 { font-size: var(--sds-type-body-large-size); font-weight: var(--sds-font-weight-bold); margin: 0; }
.panelhead .muted { color: var(--sds-color-text-muted); font-size: var(--sds-type-body-small-size); }
.panelhead .reset { margin-left: auto; }

/* two-column control grid */
.specgrid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--sds-space-500) var(--sds-space-700);
}
.ctrl label {
  display: block; margin-bottom: var(--sds-space-300);
  font-size: var(--sds-type-body-small-size); font-weight: var(--sds-font-weight-bold);
}
.ctrl label .unit { color: var(--sds-color-text-muted); font-weight: var(--sds-font-weight-regular); font-family: var(--sds-font-family-text); }

/* selectable filter chips — composite control; carbon fill = selected */
.chips { display: flex; flex-wrap: wrap; gap: var(--sds-space-200); }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: var(--sds-control-height-s); padding: 0 var(--sds-space-300);
  border: 1px solid var(--sds-color-border-strong); border-radius: var(--sds-radius-pill);
  background: var(--sds-color-surface); color: var(--sds-color-text);
  font-size: var(--sds-type-body-small-size);
  transition: background var(--sds-motion-duration-fast) var(--sds-motion-ease-standard);
}
.chip:hover { background: var(--sds-color-surface-hover); }
.chip em { font-style: normal; color: var(--sds-color-text-muted); font-variant-numeric: tabular-nums; }
.chip.on { background: var(--sds-color-text); color: var(--sds-color-bg); border-color: var(--sds-color-text); }
.chip.on em { color: var(--sds-color-bg); opacity: .7; }

/* dual-handle range — composite control (no shipped slider), token-styled */
.range { padding-top: var(--sds-space-200); }
.track { position: relative; height: 4px; border-radius: var(--sds-radius-pill); background: var(--sds-color-surface-strong); }
.track .fill { position: absolute; top: 0; bottom: 0; background: var(--sds-color-text); border-radius: var(--sds-radius-pill); }
.track .knob {
  position: absolute; top: 50%; width: 16px; height: 16px; transform: translate(-50%, -50%);
  background: var(--sds-color-surface); border: 2px solid var(--sds-color-text); border-radius: 50%;
  box-shadow: var(--sds-elevation-100, 0 1px 2px rgba(0,0,0,.12));
}
.ends { display: flex; justify-content: space-between; margin-top: var(--sds-space-300); font-size: var(--sds-type-footnote-size); color: var(--sds-color-text-muted); font-variant-numeric: tabular-nums; }
.ends .cur { color: var(--sds-color-text); font-weight: var(--sds-font-weight-bold); }

/* segmented toggle — composite control; carbon fill = active */
.seg { display: inline-flex; border: 1px solid var(--sds-color-border-strong); border-radius: var(--sds-radius-m); overflow: hidden; }
.seg button {
  height: var(--sds-control-height-s); padding: 0 var(--sds-space-400);
  background: var(--sds-color-surface); color: var(--sds-color-text);
  font-size: var(--sds-type-body-small-size);
  border-right: 1px solid var(--sds-color-border);
}
.seg button:last-child { border-right: 0; }
.seg button:hover { background: var(--sds-color-surface-hover); }
.seg button.on { background: var(--sds-color-text); color: var(--sds-color-bg); }

/* ---- Result bar --------------------------------------------------------- */
.resbar {
  display: flex; align-items: center; gap: var(--sds-space-300); flex-wrap: wrap;
  margin: var(--sds-space-500) 0 var(--sds-space-300);
  padding-top: var(--sds-space-400);
  border-top: 1px solid var(--sds-color-border);
}
.resbar .rescount { font-size: var(--sds-type-body-regular-size); }
.resbar .rescount b { font-weight: var(--sds-font-weight-bold); }
.active-spec { display: flex; flex-wrap: wrap; gap: var(--sds-space-100); }
.resbar .save { margin-left: auto; }

/* ---- Results table ------------------------------------------------------ */
.results { display: block; }
.results sds-table-head > *, .results sds-table-row > * { padding-inline: var(--sds-space-300); }
.results sds-table-head > :first-child, .results sds-table-row > :first-child { flex: 3 1 0; min-inline-size: 220px; }

/* ---- Dimmed full list --------------------------------------------------- */
.fulllist { margin-top: var(--sds-space-600); opacity: .5; pointer-events: none; }
.fl-head { font-size: var(--sds-type-body-small-size); margin-bottom: var(--sds-space-300); }
.fl-stub { border: 1px solid var(--sds-color-border); border-radius: var(--sds-radius-m); overflow: hidden; }
.sr {
  display: grid; grid-template-columns: 1.4fr 1.6fr .8fr .8fr 1fr;
  align-items: center; gap: var(--sds-space-400);
  padding: var(--sds-space-300) var(--sds-space-400);
  border-bottom: 1px solid var(--sds-color-border);
}
.sr:last-child { border-bottom: 0; }
.sr.head { background: var(--sds-color-surface-strong); font-size: var(--sds-type-footnote-size); color: var(--sds-color-text-muted); }
.sr .ph-line { background: var(--sds-color-surface-strong); height: 9px; border-radius: var(--sds-radius-pill); }

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .rail { display: none; }
  .specgrid { grid-template-columns: 1fr; gap: var(--sds-space-500); }
}