:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #6b6b6b;
  --border: #dcdcdc;
  --accent: #2b5fd9;
  --card: #f6f6f7;
  --error: #b3261e;
  --ready: #b45309;
  --claimed: #1d4ed8;
  --waiting: #a21caf;
  --done: #15803d;
  --failed: #b91c1c;
  --draft: #6b7280;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --fg: #e8e8ea;
    --muted: #9a9aa2;
    --border: #33363c;
    --accent: #6f9bff;
    --card: #1d2025;
    --error: #ff6961;
    --ready: #f0a94a;
    --claimed: #6f9bff;
    --waiting: #e39cf0;
    --done: #4ade80;
    --failed: #ff6961;
    --draft: #9a9aa2;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}

header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

header .brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--fg);
  text-decoration: none;
}

header nav { display: flex; gap: 1rem; }
header nav a { color: var(--muted); text-decoration: none; }
header nav a:hover { color: var(--accent); }

header .logout {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
}

main {
  max-width: 60rem;
  margin: 0 auto;
  padding: 1rem;
}

h1 { font-size: 1.4rem; margin: 0.5rem 0 1rem; }
h2 { font-size: 1rem; color: var(--muted); margin: 1.5rem 0 0.5rem; text-transform: uppercase; letter-spacing: 0.03em; }

a { color: var(--accent); }

ul.entries, ul.thread, ul.audit, ul.attachments {
  list-style: none;
  margin: 0;
  padding: 0;
}

ul.entries li, ul.thread li, ul.audit li, ul.attachments li {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 0.5rem;
  background: var(--card);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

ul.thread li.current {
  border-color: var(--accent);
}

.tag {
  font-size: 0.75rem;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.05rem 0.4rem;
}

.state {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.05rem 0.4rem;
  border-radius: 4px;
}

.state-ready { color: var(--ready); }
.state-claimed { color: var(--claimed); }
.state-waiting { color: var(--waiting); }
.state-done { color: var(--done); }
.state-failed { color: var(--failed); }
.state-draft { color: var(--draft); }

.route, .stage { font-size: 0.8rem; color: var(--muted); }

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

.body pre, pre.data {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

ul.attachments li { flex-direction: column; align-items: flex-start; }

.attachment-preview img {
  max-width: 100%;
  max-height: 16rem;
  border-radius: 6px;
  margin-top: 0.4rem;
}

.upload-form {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.size { font-size: 0.8rem; color: var(--muted); }

.answer-form textarea {
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
}

form.filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

form.filters input {
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  flex: 1 1 8rem;
}

button {
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-size: 0.95rem;
}

button:hover { opacity: 0.9; }

section.login {
  max-width: 22rem;
  margin: 4rem auto;
}

section.login form {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

section.login input {
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
}

.error { color: var(--error); }

time { font-size: 0.75rem; color: var(--muted); }

.actor { font-size: 0.8rem; color: var(--muted); }
.action { font-size: 0.85rem; font-weight: 600; }

@media (max-width: 30rem) {
  header { gap: 0.75rem; }
  main { padding: 0.75rem; }
}