:root {
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --green: #16a34a;
  --green-dark: #15803d;
  --red: #dc2626;
  --gray: #6b7280;
  --bg: #f3f4f6;
  --card: #ffffff;
  --border: #e5e7eb;
  --text: #111827;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei",
    "PingFang SC", "Hiragino Sans GB", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
}

.hidden { display: none !important; }
.muted { color: var(--gray); }
.center { text-align: center; }

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card);
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar h1 { font-size: 18px; margin: 0; }
.user-area { display: flex; align-items: center; gap: 10px; }
.user-name { color: var(--gray); font-size: 14px; }

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
}

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 16px;
}
.card h2 { font-size: 16px; margin: 0 0 14px; }
.center-view { text-align: center; padding: 48px 20px; }
.center-view p { margin-bottom: 18px; color: var(--gray); }

/* Form */
.record-form {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field-wide { grid-column: span 2; }
.field label { font-size: 13px; color: var(--gray); }
.field input, .field select {
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  background: #fff;
}
.field input:focus, .field select:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.form-actions {
  grid-column: 1 / -1;
  display: flex;
  gap: 10px;
}

/* Buttons */
.btn {
  border: none;
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-success { background: var(--green); color: #fff; }
.btn-success:hover { background: var(--green-dark); }
.btn-ghost { background: #f3f4f6; color: var(--text); }
.btn-ghost:hover { background: #e5e7eb; }
.btn-danger { background: #fee2e2; color: var(--red); }
.btn-danger:hover { background: #fecaca; }
.btn-mini { padding: 4px 10px; font-size: 13px; margin-right: 6px; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* Save bar */
.savebar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 16px;
  position: sticky;
  top: 61px;
  z-index: 5;
}
.savebar .spacer { flex: 1; }
.status { font-size: 14px; color: var(--gray); }
.status.ok { color: var(--green-dark); }
.status.error { color: var(--red); }
.status.warn { color: #b45309; }
.badge {
  background: #fef3c7;
  color: #b45309;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 999px;
}

/* Table */
.table-head-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  white-space: nowrap;
}
th { color: var(--gray); font-weight: 600; background: #fafafa; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: #f9fafb; }
.actions { white-space: nowrap; }

@media (max-width: 720px) {
  .record-form { grid-template-columns: 1fr 1fr; }
  .field-wide { grid-column: span 2; }
}
@media (max-width: 480px) {
  .record-form { grid-template-columns: 1fr; }
  .field-wide { grid-column: span 1; }
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: 4px 0 12px;
  font-size: 14px;
  color: var(--gray);
}
.filter-bar input[type="date"] {
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}