:root {
  --bg: #f2f4f8;
  --card: #ffffff;
  --border: #d9dee7;
  --text: #1c2430;
  --muted: #6b7684;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --ok: #16a34a;
  --warn: #d97706;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

.hidden { display: none !important; }
.muted { color: var(--muted); }
.spacer { flex: 1; }
.error { color: var(--danger); font-size: 13px; }

/* ---------------------------------------------------------------- карточки */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}

/* ------------------------------------------------------------------- вход */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card { width: 340px; }
.login-card h1 { margin: 0 0 4px; font-size: 24px; text-align: center; }
.login-card .muted { text-align: center; margin: 0 0 16px; }
.login-card .btn { width: 100%; margin-top: 8px; }

/* ------------------------------------------------------------------ шапка */
.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 10px 20px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-weight: 700; font-size: 16px; }
.tabs { display: flex; gap: 4px; }
.tab {
  border: none;
  background: transparent;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  color: var(--muted);
}
.tab:hover { background: var(--bg); }
.tab.active { background: #e6edfb; color: var(--primary-dark); font-weight: 600; }
.userbox { margin-left: auto; display: flex; align-items: center; gap: 12px; }

/* ------------------------------------------------------------------ кнопки */
.btn {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 7px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}
.btn:hover { background: var(--bg); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.danger { color: var(--danger); border-color: #f3c1c1; }
.btn.danger:hover { background: #fdf0f0; }
.btn.small { padding: 4px 10px; font-size: 13px; }

/* ------------------------------------------------------------------ поля */
input, select, textarea {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 10px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid #c8d8fb; border-color: var(--primary); }
label { display: block; margin-bottom: 10px; }
label.inline { display: flex; align-items: center; gap: 6px; margin: 0; }
textarea { width: 100%; resize: vertical; min-height: 100px; }

/* ---------------------------------------------------------------- layout */
main { max-width: 1200px; margin: 20px auto; padding: 0 20px; }
.toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
#search-input { width: 320px; }

/* ------------------------------------------------------------------ таблица */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td {
  text-align: left;
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.table th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
.table tbody tr:hover { background: #f7f9fc; }
.table td.actions { text-align: right; white-space: nowrap; }
.empty { text-align: center; color: var(--muted); padding: 24px; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 600;
}
.badge.open { background: #fef3c7; color: var(--warn); }
.badge.closed { background: #dcfce7; color: var(--ok); }

.field-row { display: flex; gap: 12px; }
.field-row label { flex: 1; margin-bottom: 10px; }
.link { color: var(--primary); cursor: pointer; text-decoration: underline; }

/* ------------------------------------------------------------------ модалка */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, .45);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 16px;
  z-index: 100;
  overflow-y: auto;
}
.modal { width: 640px; max-width: 100%; }
.modal h2 { margin: 0 0 4px; }
.modal .subtitle { color: var(--muted); margin: 0 0 14px; }
.modal .actions { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
.modal .actions .spacer { flex: 1; }
.modal .detail-block { margin: 12px 0; }
.modal .detail-block .label { font-size: 12px; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.modal .detail-block .value { white-space: pre-wrap; line-height: 1.45; }
.field-error { color: var(--danger); font-size: 13px; margin: 6px 0; }

/* ------------------------------------------------------------------ тост */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #1f2937;
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  z-index: 200;
  max-width: 380px;
}
.toast.error { background: var(--danger); }

@media (max-width: 800px) {
  .topbar { flex-wrap: wrap; gap: 8px; }
  #search-input { width: 100%; }
}