/* ─────────────────────────────────────────────────────────────────
   AIDP Enterprise · shared design tokens + studio shell utilities
   v1 · Phase 0 of the 8-studio enterprise rewrite
   ──────────────────────────────────────────────────────────────────

   Consumed by:
     - architecture-studio.html (refactored to use --aidp-* tokens)
     - discovery-studio.html    (Workspace view, was --ws-*)
     - testing-dashboard.html   (next: --td-* → --aidp-*)
     - requirements-studio.html (Phase 1A)
     - actions-studio.html      (Phase 1B)
     - draft-sow.html           (Phase 1C)
     - … all Phase 2 + 3 studios

   Design principle: every token here is prefixed --aidp-* so this file
   composes safely with the older assets/theme.css (which owns --ink-,
   --gold-, --canvas- in a different palette). Legacy aliases at the
   bottom keep already-shipped studios working without per-file rename.
═════════════════════════════════════════════════════════════════ */

:root {
  /* ─── Neutral palette (slate · Tailwind ink scale) ─── */
  --aidp-ink-900: #0F172A;
  --aidp-ink-800: #1E293B;
  --aidp-ink-700: #334155;
  --aidp-ink-600: #475569;
  --aidp-ink-500: #64748B;
  --aidp-ink-400: #94A3B8;
  --aidp-ink-300: #CBD5E1;
  --aidp-ink-200: #E2E8F0;
  --aidp-ink-100: #F1F5F9;
  --aidp-ink-50:  #F8FAFC;
  --aidp-white:   #FFFFFF;

  /* ─── Brand · primary action ─────────────────────── */
  --aidp-navy:    #1E40AF;
  --aidp-navy-dk: #1E3A8A;
  --aidp-navy-lt: #DBEAFE;

  /* ─── Semantic accents (subdued banking palette) ─── */
  --aidp-teal:      #0E7490;
  --aidp-teal-lt:   #CFFAFE;
  --aidp-green:     #15803D;
  --aidp-green-lt:  #DCFCE7;
  --aidp-amber:     #B45309;
  --aidp-amber-lt:  #FEF3C7;
  --aidp-red:       #B91C1C;
  --aidp-red-lt:    #FEE2E2;
  --aidp-purple:    #6D28D9;
  --aidp-purple-lt: #EDE9FE;

  /* ─── Effects ────────────────────────────────────── */
  --aidp-shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);
  --aidp-shadow:    0 1px 3px rgba(15, 23, 42, .08), 0 4px 12px rgba(15, 23, 42, .04);
  --aidp-shadow-lg: 0 4px 20px rgba(15, 23, 42, .10);
  --aidp-radius:    6px;
  --aidp-radius-lg: 10px;

  /* ─── Typography ─────────────────────────────────── */
  --aidp-f-ui:    'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --aidp-f-mono:  'IBM Plex Mono', 'JetBrains Mono', 'SF Mono', Consolas, monospace;
}

/* ───────────────────────────────────────────────────────────────────
   Legacy aliases · keep already-shipped studios non-breaking.
   When Phase 1+ studios stop using these, they can be removed.
═══════════════════════════════════════════════════════════════════ */

/* Architecture Studio originally declared unprefixed tokens in its own :root.
   We re-publish them here so the page works with or without its inline block. */
:root {
  /* If the page already declares these locally, its own :root wins (CSS cascade) ·
     these are just safe defaults for anything that drops the inline block. */
}

/* Discovery Workspace originally used --ws-* prefix to coexist with the wizard.
   Map the prefix onto the canonical tokens so Workspace selectors keep working
   even after the per-page :root --ws-* block is removed. */
:root {
  --ws-ink-900: var(--aidp-ink-900);
  --ws-ink-800: var(--aidp-ink-800);
  --ws-ink-700: var(--aidp-ink-700);
  --ws-ink-600: var(--aidp-ink-600);
  --ws-ink-500: var(--aidp-ink-500);
  --ws-ink-400: var(--aidp-ink-400);
  --ws-ink-300: var(--aidp-ink-300);
  --ws-ink-200: var(--aidp-ink-200);
  --ws-ink-100: var(--aidp-ink-100);
  --ws-ink-50:  var(--aidp-ink-50);
  --ws-white:   var(--aidp-white);
  --ws-navy:    var(--aidp-navy);
  --ws-navy-dk: var(--aidp-navy-dk);
  --ws-navy-lt: var(--aidp-navy-lt);
  --ws-teal:    var(--aidp-teal);
  --ws-teal-lt: var(--aidp-teal-lt);
  --ws-green:    var(--aidp-green);
  --ws-green-lt: var(--aidp-green-lt);
  --ws-amber:    var(--aidp-amber);
  --ws-amber-lt: var(--aidp-amber-lt);
  --ws-red:      var(--aidp-red);
  --ws-red-lt:   var(--aidp-red-lt);
  --ws-purple:   var(--aidp-purple);
  --ws-purple-lt:var(--aidp-purple-lt);
  --ws-f-ui:   var(--aidp-f-ui);
  --ws-f-mono: var(--aidp-f-mono);
}

/* ───────────────────────────────────────────────────────────────────
   Reusable shell utility classes (`.aidp-*` namespace).
   Phase 1+ studios compose these instead of redeclaring 400 lines of
   header/KPI/filter rail/action bar CSS per file.
═══════════════════════════════════════════════════════════════════ */

/* Layout shell */
.aidp-shell {
  max-width: 1500px;
  margin: 0 auto;
  padding: 0 24px 96px;     /* room for the sticky action bar */
  font-family: var(--aidp-f-ui);
  font-size: 13px;
  line-height: 1.5;
  color: var(--aidp-ink-800);
  background: var(--aidp-ink-50);
  min-height: 100vh;
}

/* Header */
.aidp-header {
  padding: 20px 0 16px;
  border-bottom: 1px solid var(--aidp-ink-200);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: end;
}
.aidp-bread {
  font-size: 11px;
  color: var(--aidp-ink-500);
  letter-spacing: .04em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 6px;
}
.aidp-bread a { color: var(--aidp-ink-500); text-decoration: none; }
.aidp-bread a:hover { color: var(--aidp-navy); text-decoration: underline; }
.aidp-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--aidp-ink-900);
  margin: 0 0 4px;
}
.aidp-subtitle {
  font-size: 12px;
  color: var(--aidp-ink-600);
  margin: 0;
  max-width: 640px;
}
.aidp-context {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  font-size: 11px;
  color: var(--aidp-ink-500);
}
.aidp-tenant strong { color: var(--aidp-ink-800); font-weight: 600; }

/* Freshness pill */
.aidp-freshness {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border-radius: 99px;
  background: var(--aidp-green-lt);
  color: var(--aidp-green);
  font-weight: 500;
}
.aidp-freshness .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--aidp-green); }
.aidp-freshness.stale  { background: var(--aidp-amber-lt); color: var(--aidp-amber); }
.aidp-freshness.stale  .dot { background: var(--aidp-amber); }
.aidp-freshness.fail   { background: var(--aidp-red-lt); color: var(--aidp-red); }
.aidp-freshness.fail   .dot { background: var(--aidp-red); }
.aidp-freshness.queued { background: var(--aidp-amber-lt); color: var(--aidp-amber); }
.aidp-freshness.queued .dot { background: var(--aidp-amber); }

/* KPI strip */
.aidp-kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 18px 0 0;
}
.aidp-kpi {
  background: var(--aidp-white);
  border: 1px solid var(--aidp-ink-200);
  border-radius: var(--aidp-radius);
  padding: 14px 16px;
  box-shadow: var(--aidp-shadow-sm);
}
.aidp-kpi .lbl {
  font-size: 10px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--aidp-ink-500);
  font-weight: 600;
  margin-bottom: 6px;
}
.aidp-kpi .val {
  font-family: var(--aidp-f-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--aidp-ink-900);
  line-height: 1.1;
}
.aidp-kpi .sub { font-size: 11px; color: var(--aidp-ink-600); margin-top: 3px; }
.aidp-kpi.positive .val { color: var(--aidp-green); }
.aidp-kpi.warning  .val { color: var(--aidp-amber); }
.aidp-kpi.danger   .val { color: var(--aidp-red); }
@media (max-width: 960px) { .aidp-kpis { grid-template-columns: repeat(2, 1fr); } }

/* Filter rail */
.aidp-filters {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0 12px;
  padding: 12px 14px;
  background: var(--aidp-white);
  border: 1px solid var(--aidp-ink-200);
  border-radius: var(--aidp-radius);
  flex-wrap: wrap;
}
.aidp-filter { display: flex; flex-direction: column; gap: 2px; }
.aidp-filter label {
  font-size: 10px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--aidp-ink-500);
  font-weight: 600;
}
.aidp-filter select,
.aidp-filter input {
  font-family: var(--aidp-f-ui);
  font-size: 13px;
  padding: 5px 8px;
  border: 1px solid var(--aidp-ink-300);
  border-radius: 4px;
  background: var(--aidp-white);
  color: var(--aidp-ink-900);
  min-width: 140px;
}
.aidp-filter select:focus,
.aidp-filter input:focus {
  outline: none;
  border-color: var(--aidp-navy);
  box-shadow: 0 0 0 3px var(--aidp-navy-lt);
}
.aidp-filter-divider { width: 1px; height: 28px; background: var(--aidp-ink-200); }
.aidp-grow { flex: 1; }

/* Source toggle (Local | Live) */
.aidp-source-toggle {
  display: inline-flex;
  background: var(--aidp-ink-100);
  border: 1px solid var(--aidp-ink-200);
  border-radius: 99px;
  padding: 2px;
}
.aidp-source-toggle button {
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 99px;
  color: var(--aidp-ink-500);
  cursor: pointer;
  transition: .15s;
}
.aidp-source-toggle button.active {
  background: var(--aidp-white);
  color: var(--aidp-ink-900);
  box-shadow: 0 1px 2px rgba(15, 23, 42, .08);
}

/* Buttons */
.aidp-btn {
  font-family: var(--aidp-f-ui);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--aidp-ink-300);
  background: var(--aidp-white);
  color: var(--aidp-ink-800);
  padding: 6px 12px;
  border-radius: 5px;
  cursor: pointer;
  transition: .15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.aidp-btn:hover { background: var(--aidp-ink-100); border-color: var(--aidp-ink-400); }
.aidp-btn-primary { background: var(--aidp-navy); color: var(--aidp-white); border-color: var(--aidp-navy); }
.aidp-btn-primary:hover { background: var(--aidp-navy-dk); border-color: var(--aidp-navy-dk); }
.aidp-btn-ghost { background: transparent; border-color: transparent; color: var(--aidp-ink-600); }
.aidp-btn-ghost:hover { background: var(--aidp-ink-100); color: var(--aidp-ink-800); }
.aidp-btn-sm { font-size: 12px; padding: 4px 10px; }
.aidp-btn:disabled { opacity: .55; cursor: not-allowed; }

/* Tables */
.aidp-table-wrap {
  background: var(--aidp-white);
  border: 1px solid var(--aidp-ink-200);
  border-radius: var(--aidp-radius);
  overflow: hidden;
  margin: 0 0 18px;
}
.aidp-table-header {
  padding: 11px 14px;
  border-bottom: 1px solid var(--aidp-ink-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.aidp-table-header h3 { font-size: 13px; font-weight: 600; margin: 0; color: var(--aidp-ink-900); }
.aidp-table-meta { font-size: 11px; color: var(--aidp-ink-500); }
.aidp-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.aidp-table thead { background: var(--aidp-ink-50); position: sticky; top: 0; z-index: 1; }
.aidp-table th {
  text-align: left;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--aidp-ink-500);
  font-weight: 600;
  padding: 9px 10px;
  border-bottom: 1px solid var(--aidp-ink-200);
}
.aidp-table th.num { text-align: right; }
.aidp-table td {
  padding: 10px 10px;
  border-bottom: 1px solid var(--aidp-ink-100);
  color: var(--aidp-ink-800);
  vertical-align: top;
}
.aidp-table td.num { font-family: var(--aidp-f-mono); text-align: right; font-variant-numeric: tabular-nums; }
.aidp-table tbody tr { cursor: pointer; transition: .1s; }
.aidp-table tbody tr:hover    { background: var(--aidp-ink-50); }
.aidp-table tbody tr.selected { background: var(--aidp-navy-lt); }
.aidp-table tbody tr.selected:hover { background: var(--aidp-navy-lt); }
.aidp-table .mono { font-family: var(--aidp-f-mono); font-size: 11px; color: var(--aidp-ink-600); }
.aidp-table .cheapest { background: var(--aidp-green-lt); position: relative; }
.aidp-table .cheapest::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--aidp-green);
}

/* Severity / status chips */
.aidp-chip {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 99px;
  line-height: 1.4;
}
.aidp-chip-pass     { background: var(--aidp-green-lt);  color: var(--aidp-green); }
.aidp-chip-fail     { background: var(--aidp-red-lt);    color: var(--aidp-red); }
.aidp-chip-skip     { background: var(--aidp-ink-200);   color: var(--aidp-ink-600); }
.aidp-chip-critical { background: var(--aidp-red);       color: #fff; }
.aidp-chip-high     { background: var(--aidp-red-lt);    color: var(--aidp-red); }
.aidp-chip-medium   { background: var(--aidp-amber-lt);  color: var(--aidp-amber); }
.aidp-chip-low      { background: var(--aidp-ink-200);   color: var(--aidp-ink-700); }
.aidp-chip-info     { background: var(--aidp-teal-lt);   color: var(--aidp-teal); font-weight: 500; }
/* 7R verdict chips · used by Discovery + Architecture + EVP */
.aidp-chip-REHOST   { background: #DBEAFE;               color: #1E40AF; }
.aidp-chip-REPLAT   { background: var(--aidp-green-lt);  color: var(--aidp-green); }
.aidp-chip-REFACT   { background: #FED7AA;               color: #9A3412; }
.aidp-chip-REARCH   { background: var(--aidp-red-lt);    color: var(--aidp-red); }
.aidp-chip-REBUILD  { background: var(--aidp-purple-lt); color: var(--aidp-purple); }
.aidp-chip-REPLACE  { background: #FCE7F3;               color: #9D174D; }
.aidp-chip-RETAIN   { background: var(--aidp-ink-200);   color: var(--aidp-ink-700); }

/* Skeleton loader */
.aidp-skel {
  background: linear-gradient(90deg, var(--aidp-ink-100) 0%, var(--aidp-ink-200) 50%, var(--aidp-ink-100) 100%);
  background-size: 200% 100%;
  animation: aidpskel 1.4s ease-in-out infinite;
  height: 14px;
  border-radius: 3px;
}
@keyframes aidpskel { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Empty + error states */
.aidp-state {
  background: var(--aidp-white);
  border: 1px dashed var(--aidp-ink-300);
  border-radius: var(--aidp-radius-lg);
  padding: 48px 24px;
  text-align: center;
  color: var(--aidp-ink-600);
}
.aidp-state .icon { font-size: 36px; margin-bottom: 10px; opacity: .55; }
.aidp-state h2 { font-size: 16px; font-weight: 600; color: var(--aidp-ink-800); margin: 0 0 6px; }
.aidp-state p  { margin: 0 0 16px; font-size: 13px; }
.aidp-state .actions { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }

.aidp-error {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 14px;
  background: var(--aidp-red-lt);
  border: 1px solid var(--aidp-red);
  border-radius: var(--aidp-radius);
  color: var(--aidp-red);
  font-size: 12.5px;
  margin: 10px 0;
}
.aidp-error .ic { font-size: 16px; line-height: 1; margin-top: 1px; }

/* Sticky action bar */
.aidp-actions {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--aidp-white);
  border-top: 1px solid var(--aidp-ink-200);
  box-shadow: 0 -2px 10px rgba(15, 23, 42, .06);
  padding: 10px 24px;
  z-index: 10;
}
.aidp-actions-inner {
  max-width: 1500px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.aidp-actions-status { font-size: 12px; color: var(--aidp-ink-600); }
.aidp-actions-status strong { color: var(--aidp-ink-900); }
.aidp-actions-buttons { display: flex; gap: 8px; }

/* Detail panel (for 2-col workspaces) */
.aidp-detail {
  background: var(--aidp-white);
  border: 1px solid var(--aidp-ink-200);
  border-radius: var(--aidp-radius);
  padding: 16px 18px;
  height: fit-content;
  position: sticky;
  top: 14px;
}
.aidp-detail h3 { font-size: 14px; font-weight: 600; color: var(--aidp-ink-900); margin: 0 0 4px; }
.aidp-detail .sub { font-size: 11px; color: var(--aidp-ink-500); margin-bottom: 14px; }
.aidp-detail .row { display: grid; grid-template-columns: 110px 1fr; gap: 8px 12px; align-items: center; margin-bottom: 8px; }
.aidp-detail .row label {
  font-size: 11px;
  font-weight: 600;
  color: var(--aidp-ink-700);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.aidp-detail .row select,
.aidp-detail .row input {
  font-family: var(--aidp-f-ui);
  font-size: 12.5px;
  padding: 5px 8px;
  border: 1px solid var(--aidp-ink-300);
  border-radius: 4px;
  background: var(--aidp-white);
  color: var(--aidp-ink-900);
  width: 100%;
}
.aidp-detail .row select:focus,
.aidp-detail .row input:focus {
  outline: none;
  border-color: var(--aidp-navy);
  box-shadow: 0 0 0 3px var(--aidp-navy-lt);
}

/* 2-column workspace grid */
.aidp-workspace {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 16px;
  margin-top: 0;
}
@media (max-width: 1024px) { .aidp-workspace { grid-template-columns: 1fr; } }

/* Animation primitives */
@keyframes aidpFadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.aidp-fade-up { animation: aidpFadeUp .35s ease both; }