:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --ink: #1f2733;
  --muted: #6b7686;
  --line: #e2e7ee;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --ok-bg: #e7f6ec; --ok-ink: #1b7a3d;
  --err-bg: #fdecec; --err-ink: #b42318;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Topbar */
.topbar {
  display: flex; align-items: center; gap: 24px;
  background: #0f172a; color: #fff;
  padding: 0 20px; height: 56px;
}
.topbar .brand a { color: #fff; font-weight: 700; }
.topbar nav { display: flex; gap: 6px; margin-left: 8px; flex: 1; }
.topbar nav a {
  color: #cbd5e1; padding: 8px 12px; border-radius: 6px; font-size: 14px;
}
.topbar nav a:hover { background: #1e293b; color: #fff; text-decoration: none; }
.topbar nav a.on { background: var(--primary); color: #fff; }
.topbar .user { display: flex; align-items: center; gap: 12px; font-size: 13px; color: #cbd5e1; }
.topbar .user form { margin: 0; }

/* Layout */
.container { max-width: 880px; margin: 28px auto; padding: 0 16px; }
.container.wide { max-width: 1200px; }
h1 { font-size: 22px; margin: 0 0 18px; }
h2 { font-size: 16px; margin: 0 0 14px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }

.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 10px; padding: 20px; margin-bottom: 20px;
}

/* Login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; background: #0f172a; }
.login { width: 340px; max-width: 92vw; }
.login h1 { text-align: center; margin-bottom: 2px; }
.login .muted { text-align: center; margin-top: 0; }
.login label { display: block; margin: 14px 0; }
.login input { width: 100%; }

/* Forms */
label { font-size: 13px; color: var(--muted); font-weight: 600; }
input[type=text], input[type=password], select, textarea {
  width: 100%; margin-top: 6px; padding: 9px 11px;
  border: 1px solid var(--line); border-radius: 7px; font-size: 14px;
  background: #fff; color: var(--ink); font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); border-color: var(--primary); }

.searchbar { display: flex; gap: 10px; margin-bottom: 18px; }
.searchbar input { flex: 1; margin-top: 0; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid2 .full { grid-column: 1 / -1; }
.entry-form label { display: block; }
.entry-form .actions { margin-top: 18px; }

/* Buttons */
.btn {
  display: inline-block; padding: 9px 16px; border-radius: 7px;
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  font-size: 14px; cursor: pointer; font-weight: 600;
}
.btn:hover { background: #f1f5f9; text-decoration: none; }
.btn.primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn.primary:hover { background: var(--primary-dark); }
.btn.small { padding: 5px 10px; font-size: 13px; }
button.link { background: none; border: none; color: #cbd5e1; cursor: pointer; padding: 0; font-size: 13px; }
button.link:hover { color: #fff; text-decoration: underline; }

/* Details */
.details { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 24px; margin: 0; }
.details > div { display: flex; flex-direction: column; }
.details dt { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; }
.details dd { margin: 2px 0 0; font-size: 15px; }

/* Tables */
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: 10px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #f8fafc; font-size: 12px; text-transform: uppercase; color: var(--muted); letter-spacing: .03em; white-space: nowrap; }
tbody tr:hover { background: #f8fafc; }
td.obs { max-width: 240px; }

/* Misc */
.mono { font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; font-size: 13px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.hint { background: #eef4ff; border: 1px solid #d7e3ff; color: #2c4a7c; padding: 14px 16px; border-radius: 8px; }
.back { font-size: 14px; }
.page-head { display: flex; align-items: center; justify-content: space-between; }
.export-btns { display: flex; gap: 8px; }

/* Filters */
.filters { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-bottom: 18px; }
.filter-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 12px; }
.filter-grid label { display: block; }
.filter-grid input, .filter-grid select { margin-top: 4px; }
.filter-actions { margin-top: 12px; display: flex; gap: 8px; }

/* Buttons: danger + row actions */
.btn.danger { background: #fff; color: var(--err-ink); border-color: #f5c4c0; }
.btn.danger:hover { background: var(--err-bg); }
.row-actions { display: flex; gap: 6px; white-space: nowrap; }
.row-actions form { margin: 0; }
.delete-row { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }

.alert { background: #fff; border: 1px solid var(--line); padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; }
.alert.ok { background: var(--ok-bg); color: var(--ok-ink); border-color: #b8e6c8; }
.alert.error { background: var(--err-bg); color: var(--err-ink); border-color: #f5c4c0; }

@media (max-width: 900px) {
  .filter-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .grid2, .details, .filter-grid { grid-template-columns: 1fr; }
  .topbar { gap: 10px; padding: 0 12px; }
  .topbar .user span { display: none; }
}