:root {
  color-scheme: dark;
  --bg: #0d0f12;
  --panel: #171a1f;
  --line: #343b46;
  --text: #f3f5f7;
  --muted: #aab3bf;
  --accent: #d5fb63;
  --accent-2: #54d6ff;
  --danger: #ff6b6b;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, rgba(84, 214, 255, 0.18), transparent 34rem), linear-gradient(135deg, #0d0f12 0%, #15181c 52%, #101318 100%);
  color: var(--text);
}
button, input, textarea { font: inherit; }
a { color: var(--accent-2); }
.app-shell {
  width: min(1440px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(360px, 0.9fr) minmax(420px, 1.1fr);
}
.setup-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.setup-panel {
  width: min(760px, 100%);
  padding: clamp(24px, 5vw, 56px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(23, 26, 31, 0.9);
  box-shadow: var(--shadow);
}
.search-panel, .results-panel { padding: clamp(24px, 4vw, 56px); }
.search-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: rgba(13, 15, 18, 0.7);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}
.results-panel { background: rgba(23, 26, 31, 0.88); min-height: 100vh; }
.brand-row, .results-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand-row { justify-content: flex-start; margin-bottom: 34px; }
.brand-mark {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(213, 251, 99, 0.52);
  background: linear-gradient(145deg, rgba(213, 251, 99, 0.16), rgba(84, 214, 255, 0.11));
  color: var(--accent);
  font-weight: 900;
  border-radius: 8px;
}
.eyebrow { margin: 0 0 8px; color: var(--accent-2); font-size: 0.78rem; font-weight: 800; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: clamp(2.3rem, 5vw, 4.9rem); line-height: 0.94; letter-spacing: 0; }
h2 { margin-bottom: 0; font-size: clamp(1.4rem, 2.5vw, 2.25rem); letter-spacing: 0; }
fieldset { margin: 0 0 20px; padding: 0; border: 0; }
legend, .field span { display: block; margin-bottom: 10px; color: var(--muted); font-size: 0.9rem; font-weight: 750; }
.segmented-control {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--line);
  background: #111419;
  border-radius: 8px;
}
.segmented-control input { position: absolute; opacity: 0; pointer-events: none; }
.segmented-control span {
  display: grid;
  min-height: 44px;
  place-items: center;
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease;
}
.segmented-control input:checked + span { background: var(--accent); color: #111419; font-weight: 900; }
.search-form { display: grid; gap: 18px; }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.field input, .field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #111419;
  color: var(--text);
  outline: none;
}
.field input { height: 48px; padding: 0 14px; }
.field textarea { min-height: 180px; resize: vertical; padding: 14px; line-height: 1.5; }
.field input:focus, .field textarea:focus { border-color: var(--accent-2); box-shadow: 0 0 0 4px rgba(84, 214, 255, 0.12); }
.action-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.primary-button, .ghost-button, .link-button {
  min-height: 50px;
  border: 0;
  border-radius: 8px;
  padding: 0 18px;
  cursor: pointer;
  font-weight: 900;
}
.primary-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #0d0f12;
}
.primary-button:disabled { opacity: 0.65; cursor: wait; }
.button-icon { font-size: 1.4rem; line-height: 1; }
.ghost-button, .link-button { border: 1px solid var(--line); background: transparent; color: var(--text); }
.link-button { display: inline-flex; align-items: center; text-decoration: none; }
.status-pill {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 800;
}
.status-pill.loading { border-color: rgba(213, 251, 99, 0.5); color: var(--accent); }
.status-pill.error { border-color: rgba(255, 107, 107, 0.55); color: var(--danger); }
.message-area, .summary-area, .questions-area {
  margin-top: 24px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(13, 15, 18, 0.55);
  color: var(--muted);
  line-height: 1.55;
}
.summary-area strong, .result-body strong, .questions-area h3 { color: var(--text); }
.hidden { display: none; }
.results-grid { display: grid; gap: 14px; margin-top: 20px; }
.result-card { border: 1px solid var(--line); border-radius: 8px; background: var(--panel); box-shadow: var(--shadow); overflow: hidden; }
.result-top { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 18px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.result-top h3 { margin-bottom: 8px; font-size: 1.25rem; letter-spacing: 0; }
.meta-line { color: var(--muted); font-size: 0.93rem; }
.confidence {
  width: 74px;
  height: 74px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(213, 251, 99, 0.45);
  border-radius: 8px;
  background: rgba(213, 251, 99, 0.1);
  color: var(--accent);
  font-weight: 950;
}
.result-body { display: grid; gap: 14px; padding: 18px; color: var(--muted); line-height: 1.55; }
.clue-list, .source-list, .questions-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.clue-list li, .source-list li, .questions-list li {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 10px;
  background: rgba(255, 255, 255, 0.035);
  color: var(--muted);
  font-size: 0.86rem;
}
@media (max-width: 980px) {
  .app-shell { grid-template-columns: 1fr; }
  .search-panel { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
  .results-panel { min-height: auto; }
}
@media (max-width: 620px) {
  .search-panel, .results-panel { padding: 22px; }
  .brand-row, .results-header { flex-direction: column; align-items: flex-start; }
  .result-top { align-items: flex-start; }
  .field-grid, .segmented-control { grid-template-columns: 1fr; }
  .action-row, .primary-button, .ghost-button, .link-button { width: 100%; justify-content: center; }
}