/* ============================================================================
   FALSIFY — live belief-revision UI
   "Forensic lab" design system. Dark, instrument-panel aesthetic.

   Truth-state colors are a STATUS palette (not categorical): alive=good,
   refuted=critical, superseded=warning, invalidated=neutral/disabled. Because
   green↔red separate at only ΔE ~12.7 under deuteranopia, state is ALWAYS
   carried by a second channel too — a text tag, a dashed border, the log —
   never by color alone. (Validated with the dataviz palette checker.)
   ========================================================================== */

:root {
  /* surfaces */
  --bg:        #0b1020;
  --panel:     #111827;
  --panel-2:   #0e1626;
  --hairline:  #1f2937;
  --hairline-2:#273244;

  /* ink */
  --text:      #e5e7eb;
  --text-dim:  #9ca3af;
  --text-mute: #6b7280;

  /* brand accent — electric mint, used only for interactive affordances */
  --accent:    #34d399;
  --accent-dim:#0f3f31;

  /* truth-state (status) palette — shared with the CLI + HTML export */
  --alive:       #22c55e;
  --refuted:     #ef4444;
  --invalidated: #9ca3af;
  --superseded:  #f59e0b;
  --forgotten:   #4b5563;

  /* glows (state color at low alpha) */
  --alive-glow:   rgba(34,197,94,.20);
  --refuted-glow: rgba(239,68,68,.24);

  --radius:   12px;
  --radius-s: 8px;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, monospace;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;

  --dur:   240ms;
  --ease:  cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow: auto;
}

/* ------------------------------------------------------------------ layout */
#app {
  display: grid;
  grid-template-rows: 56px 1fr;
  height: 100vh;
}

#topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  border-bottom: 1px solid var(--hairline);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; letter-spacing: .2px; }
.brand .mark { color: var(--accent); font-size: 20px; line-height: 1; }
.brand .sub  { color: var(--text-dim); font-weight: 400; font-size: 12.5px; }
.topbar-spacer { flex: 1; }

#workspace {
  display: grid;
  grid-template-columns: 360px 1fr 380px;
  min-height: 0;                 /* let children scroll, not the grid */
  overflow: auto;
}

.panel {
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}
.panel + .panel { border-left: 1px solid var(--hairline); }

.panel-head {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px;
  font-size: 11px; font-weight: 650; letter-spacing: .12em; text-transform: uppercase;
  color: var(--text-mute);
  border-bottom: 1px solid var(--hairline);
}
.panel-head .count { margin-left: auto; font-family: var(--mono); color: var(--text-dim); letter-spacing: 0; }

/* ------------------------------------------------------------------ chat */
#chat { }
#messages { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.msg { max-width: 92%; padding: 10px 13px; border-radius: var(--radius-s); font-size: 13.5px; animation: rise var(--dur) var(--ease); }
.msg.user   { align-self: flex-end; background: #16324e; border: 1px solid #1d4d74; }
.msg.system { align-self: flex-start; background: var(--panel); border: 1px solid var(--hairline); }
.msg.system.warn { border-color: #5b3d12; background: #1c1608; }
.msg .msg-title { font-weight: 650; margin-bottom: 3px; }
.msg .msg-meta  { font-family: var(--mono); font-size: 11.5px; color: var(--text-dim); margin-top: 6px; }
.msg .pill { display:inline-block; font-family: var(--mono); font-size: 11px; padding: 1px 6px; border-radius: 999px; margin: 2px 4px 0 0; }

.coach { margin: auto 16px; padding: 14px; text-align: center; color: var(--text-dim); font-size: 12.5px; border: 1px dashed var(--hairline-2); border-radius: var(--radius); }
.coach b { color: var(--text); }

#composer { border-top: 1px solid var(--hairline); padding: 12px; display: flex; flex-direction: column; gap: 8px; }
#composer .row { display: flex; gap: 8px; align-items: flex-end; }
#msg-input {
  flex: 1; resize: none; min-height: 42px; max-height: 120px;
  background: var(--panel); color: var(--text);
  border: 1px solid var(--hairline-2); border-radius: var(--radius-s);
  padding: 10px 12px; font-family: var(--sans); font-size: 13.5px;
}
#msg-input:focus { outline: none; border-color: var(--accent); }
button.send {
  background: var(--accent); color: #04140d; font-weight: 700;
  border: none; border-radius: var(--radius-s); padding: 11px 16px; cursor: pointer;
  transition: filter var(--dur) var(--ease);
}
button.send:hover { filter: brightness(1.08); }
button.send:disabled { opacity: .5; cursor: default; }

.dropzone {
  font-size: 12px; color: var(--text-dim);
  border: 1px dashed var(--hairline-2); border-radius: var(--radius-s);
  padding: 9px; text-align: center; cursor: pointer; transition: all var(--dur) var(--ease);
}
.dropzone.drag { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* ------------------------------------------------------------------ graph */
#graph-panel { position: relative; background: radial-gradient(1200px 800px at 60% 30%, #0d1424 0%, var(--bg) 70%); }
#graph { width: 100%; height: 100%; }

#legend {
  position: absolute; top: 14px; left: 14px; z-index: 5;
  display: flex; flex-wrap: wrap; gap: 6px 14px;
  padding: 10px 12px; background: rgba(17,24,39,.72); backdrop-filter: blur(6px);
  border: 1px solid var(--hairline); border-radius: var(--radius-s); font-size: 11.5px;
}
#legend .item { display: flex; align-items: center; gap: 6px; color: var(--text-dim); }
#legend .chip { width: 10px; height: 10px; border-radius: 3px; }
#legend .chip.refuted { border: 1.5px dashed var(--refuted); background: transparent; }

#controls {
  position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%); z-index: 5;
  display: flex; gap: 8px; padding: 8px; background: rgba(17,24,39,.82); backdrop-filter: blur(8px);
  border: 1px solid var(--hairline); border-radius: 999px;
}
#controls button {
  background: transparent; color: var(--text-dim); border: 1px solid transparent;
  border-radius: 999px; padding: 7px 13px; font-size: 12.5px; font-weight: 600; cursor: pointer;
  transition: all var(--dur) var(--ease);
}
#controls button:hover { color: var(--text); border-color: var(--hairline-2); background: var(--panel); }
#controls button.primary { color: #04140d; background: var(--accent); }
#controls button.primary:hover { filter: brightness(1.08); background: var(--accent); }

.status-dot { display:inline-flex; align-items:center; gap:6px; font-size:11.5px; color: var(--text-dim); font-family: var(--mono); }
.status-dot .d { width:8px; height:8px; border-radius:999px; background: var(--forgotten); transition: background var(--dur); }
.status-dot.live .d { background: var(--alive); box-shadow: 0 0 8px var(--alive-glow); }
.status-dot.reconnecting .d { background: var(--superseded); }

/* ------------------------------------------------------------------ backend toggle */
.toggle { display: inline-flex; background: var(--panel); border: 1px solid var(--hairline-2); border-radius: 999px; padding: 3px; }
.toggle button { background: transparent; border: none; color: var(--text-dim); font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 999px; cursor: pointer; transition: all var(--dur); }
.toggle button.on { background: var(--accent); color: #04140d; }

.badge { font-family: var(--mono); font-size: 11px; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--hairline-2); color: var(--text-dim); }
.badge.demo { border-color: #1d4d74; color: #7cc0f0; }

/* ------------------------------------------------------------------ insight column */
#insight { overflow-y: auto; }

.scoreboard { padding: 16px; display: flex; flex-direction: column; gap: 12px; border-bottom: 1px solid var(--hairline); }
.sb-q { font-size: 12px; color: var(--text-dim); }
.sb-card { border: 1px solid var(--hairline); border-radius: var(--radius); padding: 13px; background: var(--panel); position: relative; overflow: hidden; }
.sb-card .sb-label { display:flex; align-items:center; gap:7px; font-size: 11px; font-weight: 700; letter-spacing:.1em; text-transform: uppercase; }
.sb-card .sb-answer { margin-top: 7px; font-size: 14px; font-weight: 600; }
.sb-card .sb-note { margin-top: 6px; font-size: 12px; color: var(--text-dim); }
.sb-card.falsify { border-color: #14532d; }
.sb-card.falsify .sb-label { color: var(--alive); }
.sb-card.rag { border-color: #5b3d12; }
.sb-card.rag .sb-label { color: var(--superseded); }
.sb-card.rag.stale { border-color: var(--refuted); }
.sb-card.rag.stale .sb-note { color: #fca5a5; }
.sb-card.stale-flash { animation: staleflash 900ms var(--ease); }
.ic { width: 15px; height: 15px; display:inline-block; }

.log { padding: 12px 16px; }
.log-entry { display: flex; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--hairline); animation: slidein var(--dur) var(--ease); }
.log-entry:last-child { border-bottom: none; }
.log-dot { width: 9px; height: 9px; border-radius: 999px; margin-top: 5px; flex: none; }
.log-body .lg-title { font-weight: 600; font-size: 13px; }
.log-body .lg-title .id { font-family: var(--mono); font-size: 11.5px; color: var(--text-dim); }
.log-body .lg-why { font-size: 12px; color: var(--text-dim); margin-top: 2px; }

/* ------------------------------------------------------------------ animations */
@keyframes rise    { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@keyframes slidein { from { opacity: 0; transform: translateX(8px); } to { opacity: 1; transform: none; } }
@keyframes staleflash { 0% { box-shadow: 0 0 0 0 var(--refuted-glow); } 40% { box-shadow: 0 0 0 3px var(--refuted-glow); } 100% { box-shadow: 0 0 0 0 transparent; } }

/* scrollbars */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: var(--hairline-2); border-radius: 999px; }
::-webkit-scrollbar-track { background: transparent; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* responsive: 2-row layout on narrow screens so scoreboard never hides */
@media (max-width: 1080px) {
  #workspace {
    grid-template-columns: 280px 1fr;
    grid-template-rows: 1fr auto;
    overflow: hidden;
  }
  /* Chat stays top-left */
  #chat { grid-column: 1; grid-row: 1; }
  /* Graph takes top-right */
  #graph-panel { grid-column: 2; grid-row: 1; }
  /* Scoreboard spans the full bottom */
  #insight {
    grid-column: 1 / -1;
    grid-row: 2;
    max-height: 220px;
    overflow-y: auto;
    border-top: 1px solid var(--hairline);
  }
  .panel + .panel { border-left: 1px solid var(--hairline); }
}

/* truly tiny screens (phones): stack everything */
@media (max-width: 600px) {
  #workspace { grid-template-columns: 1fr; grid-template-rows: auto; grid-auto-rows: minmax(280px, auto); overflow-y: auto; }
  #chat { grid-column: 1; grid-row: auto; }
  #graph-panel { grid-column: 1; grid-row: auto; }
  #insight { grid-column: 1; grid-row: auto; max-height: none; }
  .panel + .panel { border-left: none; border-top: 1px solid var(--hairline); }
  html, body { overflow: auto; }
}