:root {
  --ink: #e9eee7;
  --muted: #93a096;
  --base: #0b100e;
  --panel: #101714;
  --line: #2a352f;
  --signal: #c9a85f;
  --bad: #de816f;
  --good: #78c6a3;
  --radius: 3px;
  --sans: "Bahnschrift", "Aptos Narrow", "Segoe UI", sans-serif;
  --serif: Georgia, "Times New Roman", serif;
  --mono: "Cascadia Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; min-width: 320px; min-height: 100vh; color: var(--ink); background: var(--base); font-family: var(--sans); }
button, input, textarea { font: inherit; }
button { cursor: pointer; color: inherit; border-radius: var(--radius); }
.chat-shell { min-height: 100vh; display: grid; }
.login-panel { width: min(100% - 32px, 420px); margin: auto; padding: 46px 40px; border: 1px solid var(--line); background: var(--panel); }
.brand-mark { width: 46px; height: 46px; display: grid; place-items: center; color: var(--base); background: var(--signal); font: 700 24px/1 var(--serif); clip-path: polygon(50% 0, 92% 22%, 92% 76%, 50% 100%, 8% 76%, 8% 22%); }
h1 { margin: 30px 0; font: 400 58px/.95 var(--serif); letter-spacing: -.02em; }
label { display: block; margin: 16px 0 8px; color: var(--muted); font: 600 10px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
input, textarea { width: 100%; border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink); background: #0b110e; }
input { height: 48px; padding: 0 12px; }
textarea { resize: vertical; min-height: 84px; max-height: 240px; padding: 14px; line-height: 1.45; }
.login-form button, .composer button { border: 0; color: #11150f; background: var(--signal); font-weight: 700; }
.login-form button { width: 100%; height: 50px; margin-top: 18px; }
#login-error { min-height: 20px; color: var(--bad); font-size: 13px; }
.chat-view { min-height: 100vh; display: grid; grid-template-rows: 64px minmax(0, 1fr); }
.chat-header { display: flex; align-items: center; gap: 18px; padding: 0 22px; border-bottom: 1px solid var(--line); background: rgba(16, 23, 20, .96); }
.chat-header a { color: var(--ink); text-decoration: none; font: 400 24px/1 var(--serif); }
.chat-header span { color: var(--muted); font: 10px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
#active-focus { margin-left: auto; color: var(--good); }
.chat-header button { width: 38px; height: 38px; border: 1px solid var(--line); background: transparent; }
.human-nav { display: flex; align-items: center; gap: 8px; }
.nav-tab, .operator-link { height: 34px; padding: 0 12px; display: inline-flex; align-items: center; border: 1px solid var(--line); color: var(--muted); background: #0b110e; text-decoration: none; font: 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.nav-tab.active { color: #11150f; border-color: var(--signal); background: var(--signal); }
.operator-link { color: var(--good); }
.surface-panel { min-height: 0; position: relative; }
.active-panel { display: grid; min-height: 0; }
.messages { width: min(100%, 920px); margin: 0 auto; padding: 28px 18px 120px; display: flex; flex-direction: column; gap: 14px; overflow: auto; }
.message { max-width: min(720px, 92%); padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius); line-height: 1.45; white-space: pre-wrap; }
.message.user { align-self: flex-end; background: #151e1a; }
.message.assistant { align-self: flex-start; background: #0f1613; }
.message small { display: block; margin-top: 8px; color: var(--muted); font: 10px/1 var(--mono); text-transform: uppercase; }
.composer { position: sticky; bottom: 0; width: min(100%, 920px); margin: 0 auto; padding: 16px 18px 20px; display: grid; grid-template-columns: minmax(0, 1fr) 130px; gap: 12px; background: linear-gradient(transparent, var(--base) 20%); }
.composer button { height: 48px; align-self: end; }
.composer button:disabled { cursor: wait; filter: saturate(.3); }
.attention-surface, .history-surface { width: min(100%, 920px); margin: 0 auto; padding: 34px 18px; align-content: start; gap: 18px; }
.surface-heading { display: flex; align-items: end; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); padding-bottom: 16px; }
.surface-heading p { margin: 0; font: 400 36px/.95 var(--serif); }
.surface-heading span, .attention-card small, .history-item span { color: var(--muted); font: 10px/1 var(--mono); text-transform: uppercase; letter-spacing: .1em; }
.surface-heading button { height: 36px; padding: 0 12px; border: 1px solid var(--line); background: transparent; }
.attention-list, .history-list { display: grid; gap: 12px; }
.attention-card, .history-item { border: 1px solid var(--line); background: #0f1613; padding: 16px; }
.attention-card time { color: var(--signal); font: 12px/1 var(--mono); }
.attention-card h2 { margin: 10px 0 8px; font: 400 24px/1.1 var(--serif); }
.attention-card p, .history-item p { margin: 0 0 10px; color: var(--ink); line-height: 1.45; }
.attention-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.attention-actions button { height: 34px; padding: 0 12px; border: 1px solid var(--line); background: #151e1a; color: var(--ink); font: 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.attention-actions button:first-child { border-color: var(--good); color: var(--good); }
.history-item.user { border-color: #34443c; background: #151e1a; }
.history-item strong { display: block; margin-bottom: 8px; color: var(--signal); }
.empty-state { margin: 24px 0 0; color: var(--muted); }
.empty-state.error { color: var(--bad); }
@media (max-width: 640px) {
  .composer { grid-template-columns: 1fr; }
  .composer button { width: 100%; }
  .chat-header { gap: 10px; padding: 0 12px; }
  .chat-header span { display: none; }
  .human-nav { overflow-x: auto; }
  .operator-link, .nav-tab { padding: 0 9px; }
}