/* =========================================================
   EDA.CSS - EDA-workstation component layer
   Loaded after style.css on every public page.

   Reference points: AMD Vivado, Intel Quartus Prime, HDL
   editors, RTL simulators, timing/verification reports.
   Rules:
     - 1px borders instead of shadows
     - mono, uppercase labels; sans for prose
     - colour carries meaning (status), never decoration
     - radius 2-4px, never pills
   ========================================================= */

/* =========================================================
   1. SECTION HEADERS
   ========================================================= */
.eda-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-bottom: var(--sp-6);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--border-line);
}
.eda-head__main { min-width: 0; }
.eda-head__title {
  margin: 0;
  font: 500 var(--fs-2xl)/1.15 var(--mono);
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--text-main);
}
.eda-head__sub {
  margin: 6px 0 0;
  font: 400 var(--fs-xs)/1.5 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.eda-head__aside {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-wrap: wrap;
}

/* Prose paragraph that follows a section header */
.eda-prose {
  margin: 0 0 var(--sp-6);
  max-width: 74ch;
  color: var(--text-secondary);
  font-size: var(--fs-md);
  line-height: 1.65;
}
.eda-prose strong { color: var(--text-main); font-weight: 600; }
.eda-prose + .eda-prose { margin-top: calc(var(--sp-4) * -1 + var(--sp-4)); }

/* =========================================================
   2. STATUS BADGES  (rectangular, glyph + word, never colour alone)
   ========================================================= */
.st {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 7px;
  border: 1px solid var(--border-line);
  border-radius: 2px;
  background: var(--bg-panel-alt);
  color: var(--text-secondary);
  font: 500 var(--fs-xxs)/1.35 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  white-space: nowrap;
}
.st::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 1px;
  background: currentColor;
}
.st--pass,
.st--merged,
.st--verified,
.st--measured,
.st--complete { color: var(--success); border-color: color-mix(in srgb, var(--success) 42%, var(--border-line)); }

.st--wip,
.st--progress,
.st--dev { color: var(--warning); border-color: color-mix(in srgb, var(--warning) 42%, var(--border-line)); }

.st--planned,
.st--open,
.st--info { color: var(--info); border-color: color-mix(in srgb, var(--info) 42%, var(--border-line)); }

.st--failed,
.st--error { color: var(--error); border-color: color-mix(in srgb, var(--error) 42%, var(--border-line)); }

.st--na,
.st--pending { color: var(--neutral); border-color: var(--border-line); }
.st--na::before,
.st--pending::before { background: transparent; box-shadow: inset 0 0 0 1px currentColor; }

/* =========================================================
   3. PANEL  (EDA result window: title bar + body)
   ========================================================= */
.eda-panel {
  border: 1px solid var(--border-line);
  border-radius: var(--r-xl);
  background: var(--bg-panel);
  overflow: hidden;
}
.eda-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: 8px var(--sp-4);
  background: var(--bg-panel-alt);
  border-bottom: 1px solid var(--border-line);
}
.eda-panel__title {
  margin: 0;
  font: 500 var(--fs-xs)/1.4 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.eda-panel__body { padding: var(--sp-4); }
.eda-panel__body > :first-child { margin-top: 0; }
.eda-panel__body > :last-child { margin-bottom: 0; }

/* =========================================================
   4. SPEC LIST  (LABEL  value, the "ROLE / DOMAIN / TOOLS" block)
   ========================================================= */
.eda-spec {
  display: grid;
  grid-template-columns: minmax(88px, max-content) minmax(0, 1fr);
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--border-soft);
}
.eda-spec > dt,
.eda-spec > dd {
  padding: 7px var(--sp-3) 7px 0;
  border-bottom: 1px solid var(--border-soft);
  margin: 0;
  min-width: 0;
}
.eda-spec > dt {
  font: 500 var(--fs-xxs)/1.5 var(--mono);
  letter-spacing: .11em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.eda-spec > dd {
  font: 400 var(--fs-sm)/1.5 var(--mono);
  color: var(--text-main);
  overflow-wrap: anywhere;
}
.eda-spec--tight > dt,
.eda-spec--tight > dd { padding-block: 5px; font-size: var(--fs-xs); }

/* =========================================================
   5. METRIC FIELDS  (only ever populated with real values)
   ========================================================= */
.eda-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-line);
  border-radius: var(--r-xl);
  overflow: hidden;
}
.eda-metric {
  background: var(--bg-panel);
  padding: var(--sp-3) var(--sp-4);
  min-width: 0;
}
.eda-metric__label {
  display: block;
  font: 500 var(--fs-xxs)/1.4 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.eda-metric__value {
  display: block;
  margin-top: 4px;
  font: 500 var(--fs-lg)/1.2 var(--mono);
  color: var(--text-main);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}
.eda-metric__value--na { color: var(--text-muted); font-size: var(--fs-sm); }

/* =========================================================
   6. TECHNICAL TABLE
   ========================================================= */
.eda-tablewrap {
  overflow-x: auto;
  border: 1px solid var(--border-line);
  border-radius: var(--r-xl);
  -webkit-overflow-scrolling: touch;
}
.eda-table {
  width: 100%;
  border-collapse: collapse;
  font: 400 var(--fs-sm)/1.5 var(--mono);
  min-width: 460px;
}
.eda-table caption {
  caption-side: top;
  text-align: left;
  padding: 8px var(--sp-4);
  background: var(--bg-panel-alt);
  border-bottom: 1px solid var(--border-line);
  font: 500 var(--fs-xxs)/1.4 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.eda-table th,
.eda-table td {
  padding: 7px var(--sp-4);
  text-align: left;
  border-bottom: 1px solid var(--border-soft);
  vertical-align: top;
}
.eda-table thead th {
  background: var(--bg-panel-alt);
  color: var(--text-muted);
  font: 500 var(--fs-xxs)/1.5 var(--mono);
  letter-spacing: .11em;
  text-transform: uppercase;
  white-space: nowrap;
}
.eda-table tbody tr:last-child td { border-bottom: 0; }
.eda-table tbody tr:hover td { background: var(--bg-panel-alt); }
.eda-table td { color: var(--text-secondary); }
.eda-table td.is-key,
.eda-table th[scope="row"] { color: var(--text-main); font-weight: 500; }
.eda-table .num { text-align: right; font-variant-numeric: tabular-nums; color: var(--text-main); }

/* =========================================================
   7. STAGE MATRIX  (SPECIFICATION / RTL / SIMULATION ... -> status)
   ========================================================= */
.eda-matrix {
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  border: 1px solid var(--border-line);
  border-radius: var(--r-xl);
  overflow: hidden;
}
.eda-matrix__stage,
.eda-matrix__state {
  padding: 6px var(--sp-4);
  border-bottom: 1px solid var(--border-soft);
  background: var(--bg-panel);
  display: flex;
  align-items: center;
  min-width: 0;
}
.eda-matrix__stage {
  font: 400 var(--fs-xs)/1.5 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  gap: var(--sp-3);
}
.eda-matrix__stage b {
  color: var(--text-muted);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
.eda-matrix__state { justify-content: flex-end; }
.eda-matrix > :nth-last-child(-n + 2) { border-bottom: 0; }

/* =========================================================
   8. CODE
   ========================================================= */
.eda-code {
  margin: 0 0 var(--sp-4);
  border: 1px solid var(--border-line);
  border-radius: var(--r-xl);
  background: var(--bg-panel-alt);
  overflow: hidden;
}
.eda-code__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: 6px var(--sp-3);
  border-bottom: 1px solid var(--border-line);
  font: 500 var(--fs-xxs)/1.5 var(--mono);
  letter-spacing: .11em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.eda-code pre {
  margin: 0;
  padding: var(--sp-3) var(--sp-4);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.eda-code code {
  font: 400 var(--fs-xs)/1.7 var(--mono);
  color: var(--text-main);
  white-space: pre;
  tab-size: 2;
}
/* Discreet highlighting: comments and keywords only. */
.eda-code .c { color: var(--text-muted); font-style: normal; }
.eda-code .k { color: var(--accent); }
.eda-code .s { color: var(--success); }
.eda-code .n { color: var(--warning); }
.eda-code .del { color: var(--error); }
.eda-code .add { color: var(--success); }

/* =========================================================
   9. FIGURES  (real assets only, never a "coming soon" frame)
   ========================================================= */
.eda-figure {
  margin: 0 0 var(--sp-5);
  border: 1px solid var(--border-line);
  border-radius: var(--r-xl);
  background: var(--bg-panel);
  overflow: hidden;
}
.eda-figure img,
.eda-figure video { width: 100%; height: auto; display: block; }
.eda-figure figcaption {
  padding: 8px var(--sp-4);
  border-top: 1px solid var(--border-line);
  background: var(--bg-panel-alt);
  font: 400 var(--fs-xs)/1.5 var(--mono);
  color: var(--text-secondary);
}
.eda-figure figcaption b {
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: .11em;
  text-transform: uppercase;
  margin-right: var(--sp-2);
}

/* Reserved container for a future plot. Collapses entirely while empty,
   so nothing renders until a real dataset exists. */
.eda-plot:empty { display: none; }
.eda-plot {
  border: 1px solid var(--border-line);
  border-radius: var(--r-xl);
  background: var(--bg-panel);
  padding: var(--sp-4);
  overflow-x: auto;
}

/* =========================================================
   10. TABS
   ========================================================= */
.eda-tabs {
  display: flex;
  gap: 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--border-line);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.eda-tabs::-webkit-scrollbar { display: none; }
.eda-tab {
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 9px var(--sp-4);
  color: var(--text-muted);
  font: 500 var(--fs-xs)/1 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.eda-tab:hover { color: var(--text-main); background: var(--bg-panel-alt); }
.eda-tab[aria-selected="true"] {
  color: var(--text-main);
  border-bottom-color: var(--accent);
  background: var(--bg-panel-alt);
}
.eda-tabpanel { padding-top: var(--sp-5); }
.eda-tabpanel[hidden] { display: none; }

/* =========================================================
   11. TAGS / CHIPS  (technology labels)
   ========================================================= */
.eda-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.eda-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  border: 1px solid var(--border-soft);
  border-radius: 2px;
  background: var(--bg-panel-alt);
  color: var(--text-secondary);
  font: 400 var(--fs-xxs)/1.6 var(--mono);
  letter-spacing: .06em;
  white-space: nowrap;
}

/* =========================================================
   12. PROJECT CARD  (EDA result panel, used on home + engineering)
   ========================================================= */
.eda-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-line);
  border-radius: var(--r-xl);
  background: var(--bg-panel);
  overflow: hidden;
  transition: border-color var(--t-fast) var(--ease);
}
.eda-card:hover,
.eda-card:focus-within { border-color: var(--border-strong); }
.eda-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: 8px var(--sp-4);
  background: var(--bg-panel-alt);
  border-bottom: 1px solid var(--border-line);
}
/* Project names keep their authored casing: uppercasing turns the Greek
   mu of "microMarket" into a capital that reads as a Latin M. */
.eda-card__id {
  margin: 0;
  font: 500 var(--fs-sm)/1.3 var(--mono);
  letter-spacing: .04em;
  color: var(--text-main);
  min-width: 0;
  overflow-wrap: anywhere;
}
.eda-card__domain {
  font: 500 var(--fs-xxs)/1.4 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: right;
  max-width: 52%;
  overflow-wrap: anywhere;
}
.eda-card__body {
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  flex: 1 1 auto;
}
.eda-card__subtitle {
  margin: 0;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
}
.eda-card__text {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--text-secondary);
}
.eda-card__stack {
  margin: 0;
  font: 400 var(--fs-xs)/1.6 var(--mono);
  color: var(--text-muted);
  overflow-wrap: anywhere;
}
.eda-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  flex-wrap: wrap;
  padding: 8px var(--sp-4);
  border-top: 1px solid var(--border-line);
  background: var(--bg-panel-alt);
  margin-top: auto;
}
.eda-card__link {
  font: 500 var(--fs-xs)/1 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
}
.eda-card__link::after { content: " \2192"; }
.eda-card__link:hover { color: var(--pri-light); }
/* Whole-card click target without nesting interactive elements. */
.eda-card__link::before { content: ""; position: absolute; inset: 0; }
.eda-card__media {
  border-bottom: 1px solid var(--border-line);
  background: var(--bg-panel-alt);
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.eda-card__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.eda-card__media:empty { display: none; }

/* Strategic projects read one level louder than the archive. */
.eda-card--focus { border-color: var(--border-strong); }
.eda-card--focus .eda-card__head { background: var(--bg-hover); }
.eda-card--focus .eda-card__id { font-size: var(--fs-md); }

.eda-grid {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.eda-grid--wide { grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }
.eda-grid--compact { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }

/* =========================================================
   13. OPEN-SOURCE CONTRIBUTION ROW / CARD
   ========================================================= */
.eda-contrib {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  gap: var(--sp-2) var(--sp-4);
  align-items: start;
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--border-line);
  border-radius: var(--r-xl);
  background: var(--bg-panel);
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.eda-contrib:hover { border-color: var(--border-strong); background: var(--bg-panel-alt); }
.eda-contrib__repo {
  font: 500 var(--fs-xs)/1.4 var(--mono);
  letter-spacing: .06em;
  color: var(--text-muted);
}
.eda-contrib__pr { color: var(--accent); }
.eda-contrib__title {
  grid-column: 1;
  margin: 0;
  font: 400 var(--fs-sm)/1.5 var(--mono);
  color: var(--text-main);
  overflow-wrap: anywhere;
}
.eda-contrib__status { grid-column: 2; grid-row: 1; justify-self: end; }
.eda-contrib__actions { grid-column: 2; grid-row: 2; justify-self: end; align-self: end; }
.eda-contrib__note {
  grid-column: 1 / -1;
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--text-secondary);
}

/* =========================================================
   14. FAILURES & LIMITATIONS
   ========================================================= */
.eda-failure {
  border: 1px solid var(--border-line);
  border-left: 2px solid var(--warning);
  border-radius: var(--r-xl);
  background: var(--bg-panel);
  padding: var(--sp-4);
  margin-bottom: var(--sp-4);
}
.eda-failure__row + .eda-failure__row { margin-top: var(--sp-3); }
.eda-failure__label {
  display: block;
  font: 500 var(--fs-xxs)/1.5 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.eda-failure__text { margin: 0; color: var(--text-secondary); font-size: var(--fs-sm); line-height: 1.6; }
.eda-failure--resolved { border-left-color: var(--success); }

/* =========================================================
   15. NOTES / CALLOUTS
   ========================================================= */
.eda-note {
  border: 1px solid var(--border-line);
  border-left: 2px solid var(--accent);
  border-radius: var(--r-xl);
  background: var(--bg-panel);
  padding: var(--sp-3) var(--sp-4);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.6;
}
.eda-note--muted { border-left-color: var(--border-strong); }
.eda-note b { color: var(--text-main); font-weight: 600; }

/* =========================================================
   16. MATH (KaTeX in dark mode)
   ========================================================= */
.eda-math {
  margin: 0 0 var(--sp-4);
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--border-line);
  border-radius: var(--r-xl);
  background: var(--bg-panel-alt);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  color: var(--text-main);
}
.katex { color: var(--text-main); font-size: 1.02em; }
.katex-display { margin: 0; }
.katex-display > .katex { white-space: normal; }

/* =========================================================
   17. UTILITIES
   ========================================================= */
.eda-rule { border: 0; border-top: 1px solid var(--border-line); margin: var(--sp-6) 0; }
.eda-mono { font-family: var(--mono); }
.eda-muted { color: var(--text-muted); }
.eda-stack { display: grid; gap: var(--sp-4); }
.eda-stack--sm { gap: var(--sp-3); }
.eda-row { display: flex; flex-wrap: wrap; gap: var(--sp-3); align-items: center; }

/* Anything explicitly marked as an unavailable asset is removed, never
   rendered as a "coming soon" frame. */
[data-asset-missing] { display: none !important; }

/* =========================================================
   18. RESPONSIVE
   ========================================================= */
@media (max-width: 640px) {
  .eda-head { align-items: flex-start; flex-direction: column; gap: var(--sp-2); }
  .eda-head__title { font-size: var(--fs-xl); }
  .eda-spec { grid-template-columns: 1fr; }
  .eda-spec > dt { padding-bottom: 0; border-bottom: 0; }
  .eda-spec > dd { padding-top: 2px; }
  .eda-metrics { grid-template-columns: repeat(auto-fit, minmax(128px, 1fr)); }
  .eda-contrib { grid-template-columns: 1fr; }
  .eda-contrib__status { grid-column: 1; grid-row: auto; justify-self: start; }
  .eda-contrib__actions { grid-column: 1; grid-row: auto; justify-self: start; }
  .eda-grid, .eda-grid--wide, .eda-grid--compact { grid-template-columns: 1fr; }
  .eda-matrix { grid-template-columns: minmax(0, 1fr) max-content; }
  .eda-matrix__stage { font-size: var(--fs-xxs); }
}

@media (prefers-reduced-motion: reduce) {
  .loading-spinner::after { animation: none; width: 100%; }
}