:root {
  --bg: #07140f;
  --panel: #0c1c15;
  --panel-2: #10271d;
  --ink: #f1f7ef;
  --muted: #91aa9b;
  --line: rgba(198, 231, 210, .16);
  --acid: #b7f34a;
  --mint: #43e09a;
  --orange: #ff9a62;
  --mono: "IBM Plex Mono", monospace;
  --sans: "Manrope", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}
button, textarea { font: inherit; }
button { color: inherit; }
.noise { position: fixed; inset: 0; pointer-events: none; opacity: .055; z-index: 20; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E"); }

.topbar { height: 72px; border-bottom: 1px solid var(--line); display: flex; align-items: center; padding: 0 clamp(20px, 4vw, 56px); position: relative; z-index: 5; }
.brand { display: flex; align-items: center; text-decoration: none; color: var(--ink); }
.brand > span { display: flex; flex-direction: column; line-height: 1; }
.brand b { font-size: 18px; letter-spacing: -.04em; }
.brand small { font: 9px/1.4 var(--mono); letter-spacing: .18em; color: var(--muted); }
.status { margin-left: auto; display: flex; align-items: center; gap: 8px; color: var(--muted); font: 11px var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.status-dot { width: 7px; height: 7px; background: var(--mint); border-radius: 50%; box-shadow: 0 0 0 5px rgba(67, 224, 154, .08), 0 0 18px rgba(67, 224, 154, .55); }
.status.offline .status-dot { background: var(--orange); box-shadow: none; }
.lang { margin-left: 28px; border: 1px solid var(--line); background: transparent; padding: 9px 12px; font: 11px var(--mono); cursor: pointer; }
.lang:hover { border-color: var(--acid); color: var(--acid); }

main { display: grid; grid-template-columns: minmax(300px, .78fr) minmax(560px, 1.22fr); min-height: calc(100vh - 116px); }
.intro { padding: clamp(36px, 5vw, 64px) clamp(24px, 4vw, 64px); border-right: 1px solid var(--line); position: relative; overflow: hidden; }
.intro::after { content: "01001101\A 10110010\A 00101110"; white-space: pre; position: absolute; right: -20px; bottom: -45px; font: 76px/.83 var(--mono); color: rgba(183, 243, 74, .035); letter-spacing: -.12em; transform: rotate(-7deg); }
.eyebrow { display: flex; align-items: center; gap: 12px; font: 11px var(--mono); letter-spacing: .1em; color: var(--muted); }
.eyebrow span:first-child { padding: 4px 7px; background: var(--acid); color: var(--bg); font-weight: 600; }
h1 { font-size: clamp(36px, 4.5vw, 68px); letter-spacing: -.065em; line-height: .96; margin: 22px 0; max-width: 820px; }
h1 em { color: var(--acid); font-style: normal; }
.intro > p { max-width: 540px; color: var(--muted); font-size: clamp(15px, 1.2vw, 18px); line-height: 1.55; }
.stats { margin-top: 36px; display: grid; grid-template-columns: repeat(3, 1fr); max-width: 650px; border-top: 1px solid var(--line); }
.stats > div { padding: 14px 10px 0 0; display: flex; flex-direction: column; }
.stats b { font-size: clamp(20px, 1.8vw, 27px); letter-spacing: -.04em; }
.stats small { margin-top: 4px; color: var(--muted); font: 9px/1.4 var(--mono); text-transform: uppercase; }
.service-list { margin-top: 28px; max-width: 650px; border-top: 1px solid var(--line); }
.service-list > div { display: flex; gap: 13px; padding: 10px 0; border-bottom: 1px solid var(--line); align-items: center; }
.service-icon { color: var(--acid); font: 10px var(--mono); }
.service-list b, .service-list small { display: block; }
.service-list b { font-size: 12px; letter-spacing: -.01em; }
.service-list small { margin-top: 2px; color: var(--muted); font: 9px/1.45 var(--mono); }
.workflow { max-width: 650px; margin-top: 20px; padding: 12px 14px; border-left: 2px solid var(--mint); background: rgba(67, 224, 154, .045); }
.workflow span { color: var(--mint); font: 9px var(--mono); letter-spacing: .08em; }
.workflow p { margin: 6px 0 0; color: var(--muted); font-size: 11px; line-height: 1.5; }

.agent { margin: clamp(20px, 3vw, 48px); align-self: center; background: var(--panel); border: 1px solid var(--line); min-height: 640px; max-height: calc(100vh - 136px); display: flex; flex-direction: column; box-shadow: 0 26px 90px rgba(0, 0, 0, .28); }
.agent-head { padding: 18px 22px; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 16px; }
.agent-id { font: 9px var(--mono); letter-spacing: .14em; color: var(--mint); }
.agent-head h2 { font-size: 18px; margin: 3px 0 0; letter-spacing: -.025em; }
.guard { margin-left: auto; display: flex; align-items: center; gap: 9px; color: var(--muted); font: 9px/1.45 var(--mono); text-transform: uppercase; text-align: right; }
.guard > span:first-child { border: 1px solid var(--mint); color: var(--mint); width: 24px; height: 24px; display: grid; place-items: center; }
.new-chat { border: 1px solid var(--line); background: transparent; padding: 8px 11px; cursor: pointer; color: var(--ink); font: 10px var(--mono); white-space: nowrap; }
.new-chat span:first-child { color: var(--acid); font-size: 14px; margin-right: 4px; }
.new-chat:hover { border-color: var(--acid); color: var(--acid); }

.messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 24px 22px;
  scrollbar-width: thin;
  scrollbar-color: rgba(67, 224, 154, .25) transparent;
}
.messages::-webkit-scrollbar { width: 5px; }
.messages::-webkit-scrollbar-track { background: transparent; }
.messages::-webkit-scrollbar-thumb { background: rgba(67, 224, 154, .25); border-radius: 4px; }
.messages::-webkit-scrollbar-thumb:hover { background: rgba(67, 224, 154, .5); }

.message { display: flex; gap: 12px; margin-bottom: 20px; animation: appear .35s ease both; }
.message.thinking .answer-text { color: var(--muted); }
.message.thinking .check { animation: pulse 1s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .25; transform: scale(.82); } }
@keyframes appear { from { opacity: 0; transform: translateY(8px); } }
.message.user { justify-content: flex-end; }
.avatar { width: 32px; height: 32px; flex: 0 0 32px; display: grid; place-items: center; background: var(--acid); color: var(--bg); font: 10px var(--mono); font-weight: 600; }
.bubble { max-width: min(86%, 760px); }
.bubble > p { margin: 2px 0 0; font-size: 13.5px; line-height: 1.6; }
.user .bubble { background: var(--panel-2); padding: 11px 14px; border: 1px solid var(--line); }
.suggestions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 15px; }
.suggestion { border: 1px solid var(--line); background: transparent; padding: 7px 10px; font: 10px/1.4 var(--mono); cursor: pointer; text-align: left; }
.suggestion:hover { border-color: var(--acid); color: var(--acid); }
.answer { width: 100%; }
.answer-status { display: flex; align-items: center; gap: 7px; margin-bottom: 8px; font: 9px var(--mono); letter-spacing: .09em; color: var(--mint); }
.check { width: 17px; height: 17px; border: 1px solid var(--mint); display: grid; place-items: center; font-size: 11px; }
.speed { margin-left: auto; color: var(--muted); letter-spacing: 0; }
.cache-badge { color: var(--acid); border: 1px solid rgba(183, 243, 74, .4); padding: 2px 4px; font-size: 8px; }
.metric { margin-top: 14px; padding: 12px 14px; background: rgba(183, 243, 74, .07); border-left: 2px solid var(--acid); display: flex; flex-direction: column; gap: 3px; }
.metric small { color: var(--muted); font: 9px var(--mono); text-transform: uppercase; }
.metric strong { font-size: 22px; color: var(--acid); letter-spacing: -.04em; }
.result-table { margin-top: 14px; border-top: 1px solid var(--line); }
.result-row { display: grid; grid-template-columns: 26px 1fr auto; gap: 10px; padding: 8px 4px; border-bottom: 1px solid var(--line); font-size: 12px; align-items: baseline; }
.result-row span:first-child { color: var(--muted); font: 10px var(--mono); }
.result-row b { text-align: right; color: var(--acid); font: 11px var(--mono); }
.evidence { margin-top: 12px; border-top: 1px solid var(--line); }
.evidence summary { list-style: none; padding: 10px 0 0; display: flex; justify-content: space-between; color: var(--muted); font: 9px var(--mono); text-transform: uppercase; cursor: pointer; }
.evidence summary::-webkit-details-marker { display: none; }
.evidence[open] summary span:last-child { transform: rotate(45deg); }
.evidence-body { margin-top: 8px; padding: 11px; background: #081711; font: 10px/1.55 var(--mono); color: var(--muted); }
.query-summary { color: var(--ink); margin-bottom: 6px; }
.source { display: flex; gap: 8px; }
.source::before { content: "↳"; color: var(--mint); }

.composer { border-top: 1px solid var(--line); padding: 14px 18px 10px; }
.composer label { display: block; margin-bottom: 7px; color: var(--muted); font: 9px var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.input-row { display: flex; align-items: flex-end; gap: 10px; }
textarea {
  flex: 1;
  resize: none;
  height: 46px;
  max-height: 110px;
  background: #081711;
  border: 1px solid var(--line);
  outline: 0;
  color: var(--ink);
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.45;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
textarea::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}
textarea:focus { border-color: var(--mint); }
textarea::placeholder { color: #587064; }
.input-row button { width: 46px; height: 46px; border: 0; background: var(--acid); color: var(--bg); cursor: pointer; font-size: 22px; flex-shrink: 0; }
.input-row button:hover { background: var(--mint); }
.input-row button:disabled { opacity: .35; cursor: wait; }
.composer-foot { display: flex; justify-content: space-between; margin-top: 6px; color: #587064; font: 8px var(--mono); }

footer { height: 44px; padding: 0 clamp(20px, 4vw, 56px); border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; color: var(--muted); font: 9px var(--mono); letter-spacing: .06em; text-transform: uppercase; }

/* Desktop full-height app layout: eliminates awkward scrollbars on left and window */
@media (min-width: 1051px) {
  html, body {
    height: 100vh;
    overflow: hidden;
  }
  body {
    display: flex;
    flex-direction: column;
  }
  .topbar {
    flex: 0 0 72px;
  }
  footer {
    flex: 0 0 44px;
  }
  main {
    flex: 1 1 0;
    min-height: 0;
    height: calc(100vh - 116px);
    overflow: hidden;
    grid-template-columns: minmax(320px, .82fr) minmax(540px, 1.18fr);
  }
  .intro {
    padding: clamp(24px, 3.5vw, 44px) clamp(24px, 4vw, 56px);
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .intro::-webkit-scrollbar {
    display: none;
  }
  h1 {
    font-size: clamp(30px, 3.5vw, 52px);
    margin: 14px 0;
    line-height: .98;
  }
  .intro > p {
    font-size: clamp(13px, 1.1vw, 15px);
    line-height: 1.5;
  }
  .stats {
    margin-top: 24px;
  }
  .stats > div {
    padding: 10px 8px 0 0;
  }
  .stats b {
    font-size: clamp(18px, 1.6vw, 24px);
  }
  .service-list {
    margin-top: 18px;
  }
  .service-list > div {
    padding: 7px 0;
  }
  .workflow {
    margin-top: 14px;
    padding: 10px 12px;
  }
  .agent {
    margin: clamp(14px, 2vw, 24px);
    height: calc(100% - clamp(28px, 4vw, 48px));
    min-height: 0;
    max-height: none;
    align-self: stretch;
  }
}

@media (max-width: 1050px) {
  main { grid-template-columns: 1fr; }
  .intro { border-right: 0; border-bottom: 1px solid var(--line); padding-bottom: 48px; }
  .agent { max-height: none; min-height: 640px; margin: 24px 16px; }
}
@media (max-width: 620px) {
  .topbar { height: 60px; padding: 0 16px; }
  .status { display: none; }
  .lang { margin-left: auto; }
  .intro { padding: 36px 16px; }
  h1 { font-size: 40px; }
  .stats { margin-top: 28px; gap: 8px; }
  .stats b { font-size: 18px; }
  .agent { margin: 0; border-left: 0; border-right: 0; min-height: 640px; }
  .agent-head { padding: 16px 14px; }
  .messages { padding: 20px 14px; }
  .guard { display: none; }
  .bubble { max-width: 90%; }
  footer { padding: 0 16px; }
  footer span:last-child { display: none; }
}

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; animation: none !important; } }