:root {
  --bg: #0f172a;
  --bg-panel: #ffffff;
  --bg-app: #f1f5f9;
  --ink: #0f172a;
  --ink-soft: #475569;
  --ink-faint: #94a3b8;
  --line: #e2e8f0;
  --brand: #1e3a5f;
  --brand-soft: #eaf1f8;
  --accent: #2563eb;
  --ok: #15803d;
  --ok-bg: #ecfdf3;
  --warn: #b45309;
  --warn-bg: #fffbeb;
  --danger: #b91c1c;
  --danger-bg: #fef2f2;
  --radius: 10px;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg-app);
  color: var(--ink);
  font-size: 14.5px;
  line-height: 1.45;
}

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

.app-shell { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  background: var(--brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 58px;
  flex-wrap: wrap;
  gap: 8px;
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 16px; }
.brand-mark { font-size: 20px; }

.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
  color: #cbd8e8;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 500;
}
.nav a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav a.active { color: var(--brand); background: #fff; }

.user-box { display: flex; align-items: center; gap: 10px; }
.user-box[hidden] { display: none; }
.user-box .user-name { color: #cbd8e8; font-size: 13px; font-weight: 500; }
.user-box .btn { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); color: #fff; }
.user-box .btn:hover { background: rgba(255,255,255,0.18); color: #fff; border-color: rgba(255,255,255,0.3); }

.app-main { flex: 1; padding: 24px; max-width: 1180px; width: 100%; margin: 0 auto; }

.loading, .empty-state { color: var(--ink-faint); padding: 40px 0; text-align: center; }

/* Layout helpers */
.page-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.page-header h1 { margin: 0 0 4px; font-size: 21px; }
.page-header p { margin: 0; color: var(--ink-soft); font-size: 13.5px; }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}

.grid { display: grid; gap: 14px; }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* Stat tiles */
.stat-tile { display: flex; flex-direction: column; gap: 4px; }
.stat-tile .value { font-size: 26px; font-weight: 700; }
.stat-tile .label { color: var(--ink-soft); font-size: 13px; }
.stat-tile.danger .value { color: var(--danger); }
.stat-tile.warn .value { color: var(--warn); }
.stat-tile.ok .value { color: var(--ok); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: #1d4ed8; color: #fff; }
.btn-danger { color: var(--danger); }
.btn-danger:hover { border-color: var(--danger); }
.btn-sm { padding: 5px 10px; font-size: 12.5px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 13.5px; vertical-align: top; }
th { color: var(--ink-soft); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--accent); }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #f8fafc; }
.table-wrap { overflow-x: auto; }
.row-link { cursor: pointer; }

/* Badges */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 3px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 600; }
.badge-danger { color: var(--danger); background: var(--danger-bg); }
.badge-urgente { color: #fff; background: var(--danger); }
.badge-warn { color: var(--warn); background: var(--warn-bg); }
.badge-ok { color: var(--ok); background: var(--ok-bg); }
.badge-neutral { color: var(--ink-soft); background: #f1f5f9; }

/* Forms */
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
.field label { font-size: 12.5px; font-weight: 600; color: var(--ink-soft); }
.field .hint { font-size: 11.5px; color: var(--ink-faint); font-weight: 400; }
input, select, textarea {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
textarea { resize: vertical; min-height: 60px; }
fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 0 0 14px; padding: 12px; }
legend { font-size: 12.5px; font-weight: 700; color: var(--brand); padding: 0 6px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; padding: 4px 0; }
.checkbox-row input { width: auto; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 14px; }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(15, 23, 42, .5);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 40px 16px; overflow-y: auto; z-index: 50;
}
.modal {
  background: #fff; border-radius: 12px; width: 100%; max-width: 640px;
  padding: 22px; box-shadow: 0 20px 50px rgba(0,0,0,.25);
}
.modal h2 { margin: 0 0 4px; font-size: 18px; }
.modal .modal-sub { color: var(--ink-soft); font-size: 13px; margin: 0 0 16px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }

/* Toast */
.toast {
  position: fixed; bottom: 20px; right: 20px; background: var(--ink);
  color: #fff; padding: 12px 18px; border-radius: 8px; font-size: 13.5px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25); z-index: 100; max-width: 360px;
}
.toast.error { background: var(--danger); }
.toast.success { background: var(--ok); }

/* Detail layout */
.detail-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.detail-title { font-size: 20px; font-weight: 700; margin: 0 0 4px; }
.detail-sub { color: var(--ink-soft); font-size: 13.5px; }
.kv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px 20px; }
.kv-grid .kv-item .k { font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-faint); font-weight: 600; }
.kv-grid .kv-item .v { font-size: 14px; margin-top: 2px; }

.section-title { font-size: 15px; font-weight: 700; margin: 26px 0 10px; color: var(--brand); }

.pill-tabs { display: flex; gap: 6px; margin-bottom: 16px; }
.pill-tabs button {
  border: 1px solid var(--line); background: #fff; padding: 6px 14px;
  border-radius: 999px; font-size: 13px; cursor: pointer; color: var(--ink-soft);
}
.pill-tabs button.active { background: var(--brand); border-color: var(--brand); color: #fff; }

.banner { padding: 12px 16px; border-radius: 8px; font-size: 13.5px; margin-bottom: 18px; }
.banner-warn { background: var(--warn-bg); color: var(--warn); border: 1px solid #fde68a; }
.banner-info { background: var(--brand-soft); color: var(--brand); border: 1px solid #cfe0f2; }

@media (max-width: 640px) {
  .app-main { padding: 14px; }
  .topbar { padding: 10px 14px; height: auto; }
}