:root {
  --bg: #0f1419;
  --panel: #171d25;
  --panel-2: #1f2730;
  --border: #2a3440;
  --text: #e6ebf0;
  --muted: #8d9aa8;
  --accent: #3b82f6;
  --accent-2: #60a5fa;
  --ok: #22c55e;
  --warn: #f59e0b;
  --bad: #ef4444;
  --user: #1e3a5f;
  --radius: 10px;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; background: var(--bg); color: var(--text); }
h1 { font-size: 1.05rem; margin: 0; }
small, .hint { color: var(--muted); }
button { font: inherit; cursor: pointer; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: #fff; padding: .45rem .8rem; }
button:hover { background: var(--accent-2); border-color: var(--accent-2); }
button.ghost { background: transparent; color: var(--text); border-color: var(--border); }
button.ghost:hover { background: var(--panel-2); }
button.small { padding: .25rem .55rem; font-size: .82rem; }
button.danger { background: transparent; color: var(--bad); border-color: var(--bad); }
button:disabled { opacity: .5; cursor: not-allowed; }
select, textarea, input[type=text], input[type=number] {
  font: inherit; color: var(--text); background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: .4rem .55rem;
}
textarea { resize: vertical; width: 100%; }
code, pre { font-family: Consolas, "JetBrains Mono", monospace; font-size: .82rem; }
pre { background: var(--panel-2); padding: .5rem .7rem; border-radius: 8px; overflow: auto; white-space: pre-wrap; }

/* top bar */
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .6rem 1.1rem; background: var(--panel); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .7rem; }
.logo { font-size: 1.6rem; color: var(--accent-2); }
.identity { display: flex; gap: .8rem; align-items: center; flex-wrap: wrap; }
.identity label { font-size: .85rem; color: var(--muted); display: flex; gap: .35rem; align-items: center; }
.health { font-size: 1.1rem; color: var(--muted); }
.health.ok { color: var(--ok); } .health.degraded { color: var(--warn); } .health.down { color: var(--bad); }

/* layout */
.layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(360px, 1fr); gap: 0; height: calc(100% - 58px); }
@media (max-width: 1000px) { .layout { grid-template-columns: 1fr; height: auto; } .panel { max-height: 60vh; } }
.chat { display: flex; flex-direction: column; min-width: 0; border-right: 1px solid var(--border); }
.messages { flex: 1; overflow-y: auto; padding: 1rem 1.1rem; display: flex; flex-direction: column; gap: .8rem; }
.msg { display: flex; }
.msg.user { justify-content: flex-end; }
.bubble { max-width: 92%; padding: .65rem .9rem; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--border); line-height: 1.45; }
.msg.user .bubble { background: var(--user); border-color: #27507f; }
.bubble p { margin: .2rem 0; } .bubble ul, .bubble ol { margin: .3rem 0 .3rem 1.2rem; padding: 0; }
.bubble h1, .bubble h2, .bubble h3 { font-size: .95rem; margin: .5rem 0 .2rem; color: var(--accent-2); }
.bubble .foot { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: .4rem; font-size: .75rem; color: var(--muted); }
.bubble .foot .stop { color: var(--warn); }
.thumbs { display: flex; gap: .4rem; flex-wrap: wrap; margin: .3rem 0; }
.thumbs img { width: 56px; height: 56px; border-radius: 6px; border: 1px solid var(--border); object-fit: cover; }
.typing { color: var(--muted); font-style: italic; }
.error .bubble { border-color: var(--bad); }

.quick { display: flex; gap: .4rem; flex-wrap: wrap; padding: .4rem 1.1rem; border-top: 1px solid var(--border); }
.quick button { background: transparent; color: var(--muted); border-color: var(--border); font-size: .8rem; padding: .3rem .6rem; }
.quick button:hover { color: var(--text); background: var(--panel-2); }

.composer { padding: .6rem 1.1rem .8rem; background: var(--panel); border-top: 1px solid var(--border); }
.composer .row { display: flex; gap: .5rem; align-items: flex-end; }
.composer textarea { flex: 1; }
.attachments { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: .4rem; }
.attachment { position: relative; }
.attachment img { width: 64px; height: 64px; object-fit: cover; border-radius: 8px; border: 1px solid var(--border); }
.attachment .rm { position: absolute; top: -6px; right: -6px; width: 20px; height: 20px; border-radius: 50%; padding: 0; font-size: .7rem; background: var(--bad); border-color: var(--bad); }
.attachment small { display: block; max-width: 64px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .65rem; }
.meta { display: flex; justify-content: space-between; margin-top: .35rem; font-size: .75rem; color: var(--muted); }

/* cards (evidence) */
.card { margin: .5rem 0 .2rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel-2); overflow: hidden; }
.card-head { display: flex; align-items: center; gap: .6rem; padding: .45rem .7rem; border-bottom: 1px solid var(--border); font-size: .88rem; }
.decision { font-weight: 700; padding: .1rem .5rem; border-radius: 6px; font-size: .75rem; }
.decision.ACT { background: #14532d; color: #86efac; } .decision.REVIEW { background: #78350f; color: #fde68a; } .decision.REJECT { background: #7f1d1d; color: #fecaca; }
.card-body { display: flex; gap: .8rem; padding: .6rem .7rem; }
.card-body img.query { width: 96px; height: 96px; border-radius: 8px; border: 1px solid var(--border); object-fit: contain; background: #000; }
.details { font-size: .82rem; flex: 1; }
.details div { margin: .12rem 0; } .details b { color: var(--accent-2); }
.similar { display: flex; gap: .5rem; padding: 0 .7rem .6rem; flex-wrap: wrap; }
.similar figure { margin: 0; text-align: center; font-size: .7rem; color: var(--muted); }
.similar img { width: 60px; height: 60px; border-radius: 6px; border: 1px solid var(--border); display: block; }
.card.plain { padding: .5rem .7rem; font-size: .85rem; }
.tag { display: inline-block; padding: .05rem .4rem; border-radius: 5px; font-size: .72rem; border: 1px solid var(--border); color: var(--muted); }
.tag.ok { color: var(--ok); border-color: var(--ok); } .tag.bad { color: var(--bad); border-color: var(--bad); } .tag.warn { color: var(--warn); border-color: var(--warn); }

/* side panel */
.panel { display: flex; flex-direction: column; min-width: 0; background: var(--panel); }
.tabs { display: flex; border-bottom: 1px solid var(--border); overflow-x: auto; }
.tabs button { background: transparent; border: 0; border-bottom: 2px solid transparent; color: var(--muted); border-radius: 0; padding: .6rem .8rem; white-space: nowrap; }
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); }
.badge { background: var(--accent); color: #fff; border-radius: 10px; padding: 0 .4rem; font-size: .7rem; margin-left: .2rem; }
.badge:empty { display: none; }
.tab { display: none; overflow-y: auto; padding: .8rem; flex: 1; font-size: .86rem; }
.tab.active { display: block; }
.item { border: 1px solid var(--border); border-radius: 8px; padding: .55rem .7rem; margin-bottom: .55rem; background: var(--panel-2); }
.item h4 { margin: 0 0 .25rem; font-size: .9rem; display: flex; justify-content: space-between; align-items: center; gap: .5rem; }
.item .row { display: flex; gap: .4rem; flex-wrap: wrap; align-items: center; margin-top: .4rem; }
.item .muted { color: var(--muted); font-size: .78rem; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: .15rem .7rem; font-size: .82rem; }
.kv b { color: var(--muted); font-weight: 500; }
.bars { display: flex; align-items: flex-end; gap: 2px; height: 70px; margin: .4rem 0; }
.bars div { flex: 1; background: var(--accent); min-height: 2px; border-radius: 2px 2px 0 0; }
.bars div.inc { background: var(--bad); }
.trace-row { display: grid; grid-template-columns: 70px 1fr auto; gap: .5rem; padding: .25rem 0; border-bottom: 1px dashed var(--border); font-size: .8rem; }
.trace-row .kind { color: var(--muted); }
.trace-row .fail { color: var(--bad); }
details summary { cursor: pointer; color: var(--muted); }
.tool { margin-bottom: .5rem; }
.tool code { color: var(--accent-2); }

/* samples dialog */
dialog { background: var(--panel); color: var(--text); border: 1px solid var(--border); border-radius: 12px; max-width: 760px; width: 92vw; }
dialog::backdrop { background: rgba(0,0,0,.6); }
.samples { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: .6rem; max-height: 60vh; overflow: auto; }
.samples figure { margin: 0; cursor: pointer; text-align: center; font-size: .7rem; color: var(--muted); border: 1px solid var(--border); border-radius: 8px; padding: .4rem; }
.samples figure:hover { border-color: var(--accent); color: var(--text); }
.samples img { width: 80px; height: 80px; object-fit: contain; background: #000; border-radius: 6px; }
.samples .group { grid-column: 1 / -1; color: var(--accent-2); font-size: .8rem; margin-top: .3rem; }
.dialog-actions { text-align: right; margin-top: .6rem; }