:root {
  --bg: #f6f7fb;
  --panel: #ffffff;
  --text: #18202f;
  --muted: #687083;
  --line: #e2e6ef;
  --blue: #2563eb;
  --green: #16803c;
  --yellow: #b7791f;
  --red: #c53030;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.hidden { display: none !important; }
.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-panel {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, .08);
}
.eyebrow {
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
  margin: 0 0 4px;
}
h1, h2, h3 { margin: 0; }
.muted { color: var(--muted); }
.form, .inline-form {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}
label { display: grid; gap: 6px; font-weight: 700; font-size: 13px; }
input, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  font: inherit;
  background: #fff;
}
button {
  border: 0;
  border-radius: 6px;
  background: var(--blue);
  color: #fff;
  padding: 10px 14px;
  font-weight: 800;
  cursor: pointer;
}
button.secondary {
  background: #eef2ff;
  color: #1d4ed8;
}
.error { color: var(--red); min-height: 20px; }
.app {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 240px 1fr;
}
.sidebar {
  background: #101827;
  color: #fff;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.brand {
  display: flex;
  gap: 10px;
  align-items: center;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--blue);
  font-weight: 900;
}
.brand small { display: block; color: #b8c0d4; }
nav { display: grid; gap: 6px; }
.nav {
  background: transparent;
  color: #d7ddec;
  text-align: left;
}
.nav.active, .nav:hover { background: #1c2940; color: #fff; }
.content { padding: 24px; overflow: auto; }
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.card, .panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.card {
  padding: 16px;
  border-left: 4px solid var(--blue);
}
.card span { display: block; color: var(--muted); font-size: 13px; }
.card strong { display: block; margin-top: 8px; font-size: 24px; }
.card.ok { border-left-color: var(--green); }
.card.info { border-left-color: var(--blue); }
.card.accent { border-left-color: var(--yellow); }
.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.panel { padding: 16px; margin-bottom: 16px; }
.panel h3 { margin-bottom: 12px; }
.inline-form {
  grid-template-columns: repeat(4, minmax(140px, 1fr)) auto;
  align-items: end;
}
.deepseek-form {
  display: grid;
  grid-template-columns: repeat(4, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 12px;
}
.deepseek-form textarea {
  grid-column: 1 / -1;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  font: inherit;
  resize: vertical;
}
.deepseek-form button {
  justify-self: start;
}
.answer-box {
  min-height: 180px;
  white-space: pre-wrap;
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  color: #1f2937;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
th, td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0; }
.badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  background: #edf2f7;
  font-size: 12px;
  font-weight: 800;
}
.critical, .blocked { color: var(--red); }
.warning { color: var(--yellow); }
@media (max-width: 980px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .cards, .grid, .inline-form, .deepseek-form { grid-template-columns: 1fr; }
}