:root {
  --bg: #f3efe6;
  --ink: #1c241c;
  --muted: #5c675c;
  --panel: #fffdf8;
  --line: #d7d0c2;
  --accent: #2f5d3a;
  --accent-2: #8a5a2b;
  --shadow: 0 18px 40px rgba(28, 36, 28, 0.08);
  --radius: 18px;
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(47, 93, 58, 0.12), transparent 40%),
    radial-gradient(circle at bottom right, rgba(138, 90, 43, 0.14), transparent 35%),
    linear-gradient(160deg, #f7f2e8, #ebe4d6 55%, #e4ddd0);
  min-height: 100vh;
}

.shell {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 20px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
  min-height: 100vh;
}

.sidebar, .main {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.sidebar { padding: 22px; }
.brand {
  margin: 0;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--accent);
  font-family: "Segoe UI", sans-serif;
}
.pilot { margin: 6px 0 18px; color: var(--muted); }
.sidebar h1 {
  font-size: 1.2rem;
  margin: 0 0 10px;
  line-height: 1.15;
}
.panel-block {
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.panel-block select,
.mini-form input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  font: inherit;
  background: #fffcf7;
  margin-bottom: 8px;
}
.mini-form button,
.upload-box button {
  width: 100%;
  border: 0;
  border-radius: 12px;
  padding: 10px 12px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.upload-box { margin-top: 10px; }
.upload-box .hint {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.86rem;
}
.upload-box input[type="file"] {
  width: 100%;
  margin-bottom: 8px;
  font-size: 0.82rem;
}
.doc-list {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.86rem;
  font-family: "Segoe UI", sans-serif;
}

.agents { display: grid; gap: 10px; }
.agent-card {
  text-align: left;
  border: 1px solid var(--line);
  background: #faf7f0;
  border-radius: 14px;
  padding: 12px 14px;
  cursor: pointer;
  display: grid;
  gap: 4px;
}
.agent-card strong { font-size: 1rem; }
.agent-card span { color: var(--muted); font-size: 0.92rem; }
.agent-card.active {
  border-color: var(--accent);
  background: #eef6f0;
  box-shadow: inset 0 0 0 1px var(--accent);
}

.toggle {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}
.status {
  margin-top: 16px;
  padding: 10px 12px;
  border-radius: 12px;
  background: #f1ece2;
  color: var(--muted);
  font-size: 0.86rem;
  font-family: "Segoe UI", sans-serif;
}

.main {
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  min-height: calc(100vh - 48px);
  overflow: hidden;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: start;
  padding: 20px 22px 12px;
  border-bottom: 1px solid var(--line);
}
.top-actions { display: flex; gap: 8px; align-items: center; }
.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  color: var(--accent-2);
  font-family: "Segoe UI", sans-serif;
}
.topbar h2 { margin: 4px 0 0; font-size: 1.4rem; }
.ghost {
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: inline-flex;
  align-items: center;
}

.chat {
  padding: 18px 22px;
  overflow: auto;
  display: grid;
  gap: 12px;
  align-content: start;
}
.bubble {
  max-width: 85%;
  padding: 12px 14px;
  border-radius: 16px;
  white-space: pre-wrap;
  line-height: 1.45;
}
.bubble.user {
  justify-self: end;
  background: #2f5d3a;
  color: #f7fff8;
}
.bubble.assistant {
  justify-self: start;
  background: #f4efe5;
  border: 1px solid var(--line);
}
.bubble.system {
  justify-self: center;
  background: transparent;
  color: var(--muted);
  font-size: 0.9rem;
}
.bubble.thinking {
  min-width: min(420px, 85%);
  background: #eef6f0;
  border: 1px dashed var(--accent);
}
.thinking-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  font-family: "Segoe UI", sans-serif;
}
.thinking-title { font-size: 0.95rem; }
.thinking-timer {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.82rem;
}
.thinking-status {
  color: var(--muted);
  font-size: 0.9rem;
  font-family: "Segoe UI", sans-serif;
}
.thinking-answer { white-space: normal; }
.md {
  line-height: 1.5;
}
.md > *:first-child { margin-top: 0; }
.md > *:last-child { margin-bottom: 0; }
.md h1, .md h2, .md h3, .md h4 {
  margin: 0.85em 0 0.4em;
  line-height: 1.25;
  color: var(--ink);
}
.md h1 { font-size: 1.25rem; }
.md h2 { font-size: 1.12rem; }
.md h3 { font-size: 1.02rem; }
.md p { margin: 0.55em 0; }
.md ul, .md ol {
  margin: 0.45em 0;
  padding-left: 1.3em;
}
.md li { margin: 0.2em 0; }
.md strong { color: #17331d; }
.md em { color: #3d4a3d; }
.md blockquote {
  margin: 0.7em 0;
  padding: 0.35em 0.8em;
  border-left: 3px solid var(--accent);
  background: rgba(47, 93, 58, 0.06);
  color: var(--muted);
}
.md code {
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.88em;
  background: rgba(28, 36, 28, 0.06);
  padding: 0.1em 0.35em;
  border-radius: 6px;
}
.md pre {
  margin: 0.7em 0;
  padding: 0.8em 0.9em;
  overflow: auto;
  border-radius: 12px;
  background: #1c241c;
  color: #f4efe5;
}
.md pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}
.md a { color: var(--accent); }
.md table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.7em 0;
  font-size: 0.92rem;
  font-family: "Segoe UI", sans-serif;
}
.md th, .md td {
  border: 1px solid var(--line);
  padding: 0.4em 0.55em;
  text-align: left;
}
.md th { background: #f1ece2; }
.md hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 1em 0;
}
.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(47, 93, 58, 0.25);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex: 0 0 auto;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

.composer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 14px 22px;
  border-top: 1px solid var(--line);
}
textarea {
  width: 100%;
  resize: vertical;
  border-radius: 14px;
  border: 1px solid var(--line);
  padding: 12px 14px;
  font: inherit;
  background: #fffcf7;
}
button[type="submit"] {
  background: var(--accent);
  color: white;
  border: 0;
  border-radius: 14px;
  padding: 0 18px;
  cursor: pointer;
  font-weight: 600;
}
button:disabled { opacity: 0.5; cursor: not-allowed; }

.rag {
  border-top: 1px solid var(--line);
  padding: 12px 22px 18px;
  background: #faf6ee;
}
.rag h3 { margin: 0 0 8px; font-size: 0.95rem; }
.rag-hits { display: grid; gap: 8px; }
.hit {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 8px 10px;
  background: white;
  font-size: 0.86rem;
  font-family: "Segoe UI", sans-serif;
}
.hit strong { color: var(--accent); }

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; padding: 12px; }
  .main { min-height: 70vh; }
}

.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  display: grid;
  gap: 12px;
}
.login-card h1 { margin: 0; font-size: 1.7rem; }
.login-card label {
  display: grid;
  gap: 6px;
  font-size: 0.92rem;
  color: var(--muted);
}
.login-card input {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
  color: var(--ink);
  background: #fffcf7;
}
.login-card button {
  margin-top: 6px;
  background: var(--accent);
  color: white;
  border: 0;
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.login-error {
  margin: 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: #f8e8e4;
  color: #7a2e22;
  font-family: "Segoe UI", sans-serif;
  font-size: 0.9rem;
}