/* Co-research demo — minimal SPA shell styling. */

:root {
  --bg: #fafafa;
  --panel: #ffffff;
  --border: #e5e7eb;
  --ink: #111827;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --warn: #d97706;
  --highlight-source: #fde68a;
  --highlight-base: #bae6fd;
  --highlight-causal: #d8b4fe;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; padding: 0; }
body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: var(--bg);
  font-size: 15px;
  line-height: 1.5;
}
button {
  font: inherit;
  padding: 0.55em 1.1em;
  border-radius: 0.4em;
  border: 1px solid var(--border);
  background: var(--panel);
  cursor: pointer;
}
button.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
button.primary:hover { filter: brightness(1.06); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
input[type=text], textarea {
  font: inherit;
  width: 100%;
  padding: 0.5em 0.7em;
  border-radius: 0.35em;
  border: 1px solid var(--border);
}
a { color: var(--accent); }
code { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 0.92em; }

/* ── Intro / debrief screens ───────────────────────────────────────────── */
.screen-narrow {
  max-width: 720px;
  margin: 2.5rem auto;
  padding: 1.5rem 2rem 2rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 0.6rem;
}
.screen-narrow h1 { font-size: 1.5rem; margin-top: 0; }
.screen-narrow h2 { font-size: 1.1rem; margin: 1.4rem 0 0.4rem; }
.screen-narrow p { color: #374151; }
.screen-narrow .actions { margin-top: 1.4rem; display: flex; gap: 0.5rem; }

/* ── Task layout (3-pane) ──────────────────────────────────────────────── */
.task-shell {
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100vh;
}
.task-topbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.task-topbar .title {
  font-weight: 600;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.task-topbar input[type=text].url-bar {
  flex: 2;
  min-width: 200px;
}
.task-body {
  display: grid;
  grid-template-columns: 1fr 340px;
  min-height: 0;
}
.iframe-wrap {
  border-right: 1px solid var(--border);
  background: var(--panel);
  position: relative;
}
.iframe-wrap iframe {
  width: 100%; height: 100%;
  border: 0;
  display: block;
}
.iframe-wrap .iframe-empty {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
  font-style: italic;
}

/* ── Right rail ────────────────────────────────────────────────────────── */
.rail {
  background: var(--panel);
  padding: 0.75rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.rail h3 { font-size: 0.95rem; margin: 0 0 0.4rem; color: var(--muted); }
.rail .question-card {
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  padding: 0.6rem 0.75rem;
  background: #f9fafb;
}
.rail .question-card .q-text { font-weight: 600; }
.rail .question-card .q-bg { font-size: 0.86em; color: var(--muted); margin-top: 0.3em; }

.search-section input[type=text] { margin-bottom: 0.4rem; }
.search-results .result {
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 0.3rem;
  margin-bottom: 0.3rem;
  cursor: pointer;
  background: #fff;
}
.search-results .result:hover { border-color: var(--accent); background: var(--accent-soft); }
.search-results .result .r-title { font-weight: 600; font-size: 0.92em; }
.search-results .result .r-url { color: var(--muted); font-size: 0.78em; }
.search-results .result .r-snippet { font-size: 0.85em; margin-top: 0.2em; color: #4b5563; }

.annotation-section .ann {
  border-left: 4px solid var(--border);
  padding: 0.45rem 0.6rem;
  margin-bottom: 0.4rem;
  background: #f9fafb;
  font-size: 0.9em;
}
.annotation-section .ann.source_reliability { border-left-color: var(--warn); }
.annotation-section .ann.base_rate { border-left-color: #0284c7; }
.annotation-section .ann.causal_socratic { border-left-color: #9333ea; }
.annotation-section .ann .anchor { display: block; font-style: italic; color: var(--muted); margin-bottom: 0.2em; font-size: 0.88em; }
.annotation-section .ann .kind { display: inline-block; font-size: 0.7em; padding: 0.05em 0.45em; border-radius: 0.25em; background: var(--border); color: var(--ink); margin-right: 0.4em; text-transform: uppercase; letter-spacing: 0.04em; }

/* ── Answer form ───────────────────────────────────────────────────────── */
.answer-card {
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  padding: 0.6rem 0.75rem;
  background: #fffbeb;
}
.answer-card label { display: block; font-weight: 600; margin-bottom: 0.2em; }
.answer-card textarea { min-height: 4rem; }
.answer-card .confidence-row { display: flex; align-items: center; gap: 0.4rem; margin-top: 0.4rem; }
.answer-card .submit-row { margin-top: 0.5rem; text-align: right; }

/* ── In-page annotation highlights (injected into proxied pages too) ───── */
.cr-highlight { background: var(--highlight-source); cursor: help; border-radius: 0.15em; padding: 0 0.1em; }
.cr-highlight.base_rate { background: var(--highlight-base); }
.cr-highlight.causal_socratic { background: var(--highlight-causal); }