/* Sentinel console. No framework and no build step: the whole stylesheet is meant to be readable
   in one sitting two years from now, which a generated one would not be. */

:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #dfe3e8;
  --text: #16191d;
  --muted: #666e79;
  --accent: #1f6feb;
  --accent-text: #ffffff;
  --danger: #c9372c;
  --ok: #1f7a45;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 4px 12px rgba(16, 24, 40, .04);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --surface: #171b21;
    --border: #2a313a;
    --text: #e7eaee;
    --muted: #98a1ad;
    --accent: #4c8dff;
    --danger: #ff6b5e;
    --ok: #4ac07c;
    --shadow: none;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.muted { color: var(--muted); }
.spacer { flex: 1; }
.error { color: var(--danger); min-height: 1.2em; margin: 8px 0 0; }
[hidden] { display: none !important; }

/* ---- Sign-in ---------------------------------------------------------------------------- */

.signin {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.signin-card { width: min(380px, 100%); }
.signin-card h1 { margin: 0 0 4px; font-size: 26px; letter-spacing: -.02em; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

label { display: block; margin-top: 14px; font-size: 13px; color: var(--muted); }

input, select, textarea {
  width: 100%;
  margin-top: 4px;
  padding: 9px 11px;
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}

button {
  font: inherit;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
button.danger { color: var(--danger); border-color: var(--danger); }
button.ghost { background: transparent; }
.signin-card button { width: 100%; margin-top: 20px; }

/* ---- Shell ------------------------------------------------------------------------------ */

.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 20px;
  height: 56px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 5;
}

.brand { font-weight: 650; letter-spacing: -.01em; }
.tabs { display: flex; gap: 4px; }

.tab {
  border: none;
  background: transparent;
  padding: 8px 12px;
  color: var(--muted);
  border-radius: 8px;
}

.tab:hover { background: var(--bg); border-color: transparent; }
.tab.active { color: var(--text); background: var(--bg); font-weight: 600; }
.session { margin-left: auto; display: flex; align-items: center; gap: 12px; }

main { padding: 24px; max-width: 1500px; margin: 0 auto; }

.toolbar { display: flex; gap: 12px; align-items: center; margin-bottom: 16px; }
.toolbar input[type="search"], .toolbar select { width: 320px; margin: 0; }

/* ---- Stats ------------------------------------------------------------------------------ */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.stat .label { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.stat .value { font-size: 30px; font-weight: 650; margin-top: 6px; letter-spacing: -.02em; }

/* ---- Tables ----------------------------------------------------------------------------- */

.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  /* Wide tables scroll inside their own box rather than making the page scroll sideways. */
  overflow-x: auto;
  box-shadow: var(--shadow);
}

table { width: 100%; border-collapse: collapse; white-space: nowrap; }

th, td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
}

th { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 600; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg); }
td.empty, td.loading { text-align: center; color: var(--muted); padding: 32px; }

.pager { display: flex; align-items: center; gap: 12px; margin-top: 14px; }

/* ---- Dialogs ---------------------------------------------------------------------------- */

dialog {
  width: min(760px, 94vw);
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
}

dialog::backdrop { background: rgba(8, 11, 15, .5); }
dialog h2 { margin: 0 0 4px; font-size: 20px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 16px; }
dialog menu { display: flex; gap: 10px; padding: 0; margin: 20px 0 0; }

/* A refused write is explained, not just reported: the row as it now stands is shown here. */
.conflict {
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid var(--danger);
  border-radius: 8px;
  background: color-mix(in srgb, var(--danger) 8%, transparent);
  font-size: 14px;
}

.conflict h3 { margin: 0 0 6px; font-size: 14px; color: var(--danger); }
.conflict dl { display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; margin: 8px 0 0; }
.conflict dt { color: var(--muted); }