:root {
  --bg: #f6f7fb;
  --panel: #ffffff;
  --ink: #1c2333;
  --muted: #5b6474;
  --line: #dfe3ea;
  --accent: #2456c9;
  --accent-ink: #ffffff;
  --danger: #b3261e;
  --ok: #1e7a3c;
  --archived: #6b7280;
  --shadow: 0 1px 3px rgba(20,24,40,.07);
  --radius: 10px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding-bottom: 3rem;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.shell { max-width: 1100px; margin: 0 auto; padding: 0 14px; }

.topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 1.15rem; color: var(--ink); }
.topbar nav { display: flex; gap: 14px; margin-left: auto; flex-wrap: wrap; }
.topbar nav a { color: var(--muted); font-weight: 500; }
.topbar nav a.active { color: var(--accent); }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 16px;
}

h1 { font-size: 1.4rem; margin: 0 0 6px; }
h2 { font-size: 1.15rem; margin: 0 0 10px; }
.muted { color: var(--muted); font-size: .92rem; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .85em; }

.banner {
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
  font-weight: 500;
}
.banner.ok { background: #eaf4ec; color: var(--ok); border: 1px solid #bcdcc4; }
.banner.err { background: #fdeeed; color: var(--danger); border: 1px solid #f0c3c0; }
.banner[hidden] { display: none; }

.btn {
  display: inline-block;
  padding: .6rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.2;
}
.btn:hover { text-decoration: none; filter: brightness(.97); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.danger { color: var(--danger); border-color: #f0c3c0; }
.btn.small { padding: .35rem .7rem; font-size: .85rem; }
.btn.row { margin-right: 6px; margin-bottom: 4px; }

.btn-group { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }

input[type=text], input[type=search], input[type=email], input[type=url],
input[type=date], input[type=datetime-local], input[type=number],
textarea, select {
  width: 100%;
  padding: .55rem .7rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  background: var(--panel);
  color: var(--ink);
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); border-color: var(--accent); }
label { display: block; font-weight: 500; margin: 10px 0 4px; }
label small { font-weight: 400; color: var(--muted); }
textarea { resize: vertical; min-height: 80px; }
.field-error { color: var(--danger); font-size: .85rem; margin-top: 3px; }

.form-grid { display: grid; gap: 8px; }
.required-mark { color: var(--danger); }

table.records { width: 100%; border-collapse: collapse; font-size: .95rem; }
table.records th, table.records td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.records th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); white-space: nowrap; position: sticky; top: 0; background: var(--panel); }
table.records tr:hover td { background: #f8fafc; }
.record-id { color: var(--muted); font-size: .8rem; }
.no-records { padding: 24px; text-align: center; color: var(--muted); }

/* Responsive: on narrow screens, degrade wide tables to horizontal scroll. */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.pager { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; margin-top: 14px; }
.pager .btn { padding: .35rem .7rem; }
.pager .count { margin-left: auto; color: var(--muted); font-size: .9rem; }

/* Sheets grid */
.sheet-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.sheet-card { display: flex; flex-direction: column; }
.sheet-card .meta { color: var(--muted); font-size: .85rem; margin-top: auto; padding-top: 8px; }
.sheet-card h3 { margin: 0 0 4px; }
.sheet-card .desc { color: var(--muted); font-size: .92rem; margin: 0 0 10px; flex-grow: 1; }

.searchrow { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.searchrow input { flex: 1; min-width: 180px; }

/* Manage / form layouts */
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .row-col { grid-template-columns: 1fr; } }

.archived-badge { background: var(--archived); color: #fff; border-radius: 999px; padding: 1px 8px; font-size: .72rem; text-transform: uppercase; }

.column-def { display: grid; grid-template-columns: 1fr 150px 120px 100px; gap: 8px; align-items: center; margin-bottom: 8px; }
@media (max-width: 720px) { .column-def { grid-template-columns: 1fr; } }

.record-card { border: 1px solid var(--line); border-radius: 8px; padding: 12px; margin-bottom: 10px; }
.record-card .pair { display: flex; justify-content: space-between; gap: 12px; padding: 3px 0; border-bottom: 1px dashed var(--line); }
.record-card .pair .k { color: var(--muted); font-size: .82rem; }

@media (min-width: 721px) { .record-card { display: none; } }
@media (max-width: 720px) { table.records { display: none; } }

.hint { color: var(--muted); font-size: .88rem; }
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: auto; }

ul.pills { list-style: none; padding: 0; margin: 0; }
ul.pills li { display: inline-block; margin: 0 6px 6px 0; }