:root {
  --bg: #0f1419;
  --panel: #161c24;
  --panel-2: #1d2530;
  --ink: #e8edf2;
  --muted: #8a98a8;
  --accent: #3a8fb7;       /* calm, records-blue */
  --accent-ink: #cfe7f2;
  --line: #263240;
  --ok: #4caf7d;
  --warn: #d9a441;
  --err: #d9685f;
  --serif: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: baseline; gap: 12px; }
.mark {
  font-family: var(--serif);
  font-size: 26px;
  letter-spacing: 2px;
  color: var(--accent-ink);
}
.tagline { color: var(--muted); font-size: 13px; }

.controls { display: flex; align-items: center; gap: 16px; }
.provider { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.provider select {
  background: var(--panel-2);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 13px;
}
.status { font-size: 12px; color: var(--muted); }
.status .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 5px; vertical-align: middle; }
.dot.ok { background: var(--ok); }
.dot.warn { background: var(--warn); }

.thread {
  flex: 1;
  overflow-y: auto;
  padding: 24px 20px 8px;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
}

.msg { margin-bottom: 22px; }
.msg .who {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 6px;
}
.msg.user .who { color: var(--accent); }
.bubble {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.msg.user .bubble { background: var(--panel-2); border-color: #2c3a49; }
.msg.vera .bubble { border-left: 3px solid var(--accent); }
.bubble a { color: var(--accent-ink); }

.sources {
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
}
.sources .chip {
  display: inline-block;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 10px;
  margin: 3px 4px 0 0;
}
.sources .chip.empty { color: var(--warn); }
.sources .chip.err { color: var(--err); }

.grounding { margin-top: 8px; }
.gchip {
  display: inline-block;
  font-size: 12px;
  border-radius: 999px;
  padding: 3px 10px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  cursor: help;
}
.gchip.g-verified { color: var(--ok); border-color: rgba(76, 175, 125, 0.4); }
.gchip.g-flagged { color: var(--warn); border-color: rgba(217, 164, 65, 0.5); }
.gchip.g-unchecked { color: var(--err); border-color: rgba(217, 104, 95, 0.45); }

.error {
  background: rgba(217,104,95,0.12);
  border: 1px solid var(--err);
  color: #f3c9c5;
}

.composer {
  display: flex;
  gap: 10px;
  padding: 14px 20px;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
}
.composer textarea {
  flex: 1;
  resize: none;
  background: var(--panel);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 15px;
  font-family: inherit;
  line-height: 1.4;
  max-height: 180px;
}
.composer textarea:focus { outline: none; border-color: var(--accent); }
.composer button {
  background: var(--accent);
  color: #06121a;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  padding: 0 20px;
  font-size: 14px;
  cursor: pointer;
}
.composer button:disabled { opacity: 0.5; cursor: default; }

.foot {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  padding: 6px 0 14px;
}

.typing { color: var(--muted); font-style: italic; }

/* --- Tabs & panels --- */
.tabs {
  display: flex;
  gap: 4px;
  padding: 8px 20px 0;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
}
.tab {
  background: transparent;
  color: var(--muted);
  border: none;
  border-bottom: 2px solid transparent;
  padding: 10px 14px;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
}
.tab:hover { color: var(--ink); }
.tab.active { color: var(--accent-ink); border-bottom-color: var(--accent); }

.panel { display: none; flex: 1; overflow-y: auto; }
.panel.active { display: flex; flex-direction: column; }
#panel-chat.active { display: flex; }

.tip {
  display: none;
  max-width: 860px;
  width: 100%;
  margin: 10px auto 0;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--accent-ink);
  background: rgba(58,143,183,0.10);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
}

.pad { max-width: 860px; width: 100%; margin: 0 auto; padding: 20px; }
.phead { margin: 4px 0 14px; font-weight: 600; }
.hint { color: var(--muted); font-size: 12px; font-weight: 400; }

.row { display: flex; gap: 10px; margin-bottom: 8px; }
.row.wrap { flex-wrap: wrap; }
.row input, .row textarea, .row select {
  flex: 1;
  background: var(--panel);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
  min-width: 140px;
}
.row button, .pad button.go {
  background: var(--accent);
  color: #06121a;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  padding: 0 18px;
  cursor: pointer;
  font-size: 14px;
}
.row button:disabled { opacity: 0.5; }

.card-result {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 14px;
}
.card-result h4 { margin: 0 0 8px; color: var(--accent-ink); font-size: 15px; }
.card-result .meta { color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.card-result ul { margin: 6px 0; padding-left: 18px; }
.card-result li { margin: 4px 0; line-height: 1.45; }
.card-result a { color: var(--accent-ink); word-break: break-all; }
.badge { display:inline-block; font-size:11px; padding:2px 8px; border-radius:999px; border:1px solid var(--line); margin-left:6px; }
.badge.ok { color: var(--ok); }
.badge.empty { color: var(--warn); }
.badge.err { color: var(--err); }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px,1fr)); gap: 12px; }
.tcard {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  cursor: pointer;
}
.tcard:hover { border-color: var(--accent); }
.tcard h4 { margin: 0 0 6px; font-size: 14px; color: var(--accent-ink); }
.tcard p { margin: 0; font-size: 12px; color: var(--muted); line-height: 1.4; }

.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.work-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 720px) {
  .compare-grid, .work-grid { grid-template-columns: 1fr; }
}

.item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 10px;
}
.item .when { color: var(--muted); font-size: 11px; }
.item .actions { margin-top: 8px; display: flex; gap: 8px; flex-wrap: wrap; }
.item .actions button {
  background: var(--panel-2);
  color: var(--accent-ink);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 5px 10px;
  font-size: 12px;
  cursor: pointer;
}
.item .actions button.danger { color: var(--err); }
.empty-note { color: var(--muted); font-style: italic; padding: 8px 0; }