:root {
  color-scheme: light;
  --bg: #f5f7fa;
  --surface: #ffffff;
  --text: #16202a;
  --muted: #64748b;
  --line: #dbe3ec;
  --primary: #0f766e;
  --danger: #b42318;
  --warning: #9a6700;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

.topbar {
  min-height: 56px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 24px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.brand {
  font-weight: 750;
  text-decoration: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex: 1;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

.login {
  min-height: 70vh;
  display: grid;
  place-content: center;
}

.panel,
.metric {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.narrow {
  width: min(360px, 92vw);
}

.stack {
  display: grid;
  gap: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(140px, 1fr)) auto;
  gap: 10px;
  align-items: end;
  margin-bottom: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.metric span {
  color: var(--muted);
  display: block;
}

.metric strong {
  font-size: 32px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
}

.check {
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--text);
}

input,
select,
button {
  min-height: 38px;
  border-radius: 6px;
  border: 1px solid var(--line);
  padding: 8px 10px;
  font: inherit;
}

button {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
  cursor: pointer;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 10px 8px;
  text-align: left;
  vertical-align: middle;
}

th {
  color: var(--muted);
  font-size: 13px;
}

td input,
td select {
  width: 100%;
}

.actions {
  display: flex;
  gap: 8px;
}

.small {
  max-width: 420px;
  color: var(--muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.error,
.warn {
  color: var(--danger);
}

.ok {
  color: var(--primary);
}

@media (max-width: 820px) {
  .topbar,
  nav,
  .form-row,
  .grid {
    display: grid;
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: stretch;
    padding: 14px;
  }

  table {
    display: block;
    overflow-x: auto;
  }
}