:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #dbe1ea;
  --primary: #1d4ed8;
  --primary-dark: #1e40af;
  --success: #15803d;
  --danger: #b91c1c;
  --sidebar: #111827;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, Arial, sans-serif;
}

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

.layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px 1fr;
}

.sidebar {
  background: var(--sidebar);
  color: #fff;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.brand {
  font-size: 22px;
  font-weight: 700;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav a {
  color: #d1d5db;
  padding: 10px 12px;
  border-radius: 8px;
}

.nav a:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.sidebar-user {
  margin-top: auto;
  color: #fff;
}

.content {
  padding: 32px;
}

.page-header,
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.stat-card {
  text-align: center;
}

.stat-label {
  color: var(--muted);
  margin-bottom: 8px;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

/* Globalne style pól formularza — Bootstrap-like */
input:not([type=checkbox]):not([type=radio]):not([type=file]),
select,
textarea {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font: inherit;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

input:not([type=checkbox]):not([type=radio]):not([type=file]):focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #86b7fe;
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
}

.form-grid {
  display: grid;
  gap: 10px;
}

.form-grid input,
.form-grid select,
.form-grid textarea {
  width: 100%;
  box-sizing: border-box;
}

.form-grid select {
  background-color: #fff;
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

/* Poziomy formularz filtrowania (wyszukiwanie) */
.filter-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  align-items: end;
  margin-bottom: 0;
}

.filter-form label {
  font-weight: 500;
  font-size: 0.9rem;
  display: block;
  margin-bottom: 4px;
}

.filter-form input,
.filter-form select {
  width: 100%;
  box-sizing: border-box;
}

.filter-form .filter-actions {
  display: flex;
  gap: 8px;
}

button,
.button {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 10px 14px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

button:hover,
.button:hover {
  background: var(--primary-dark);
}

.button-secondary {
  background: #6b7280;
}

.button-full {
  width: 100%;
}

.badge {
  display: inline-block;
  background: #e5e7eb;
  color: #111827;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 12px;
}

.badge-success {
  background: #dcfce7;
  color: var(--success);
}

.alert {
  padding: 12px 14px;
  border-radius: 8px;
  margin-bottom: 16px;
}

.alert-error {
  background: #fee2e2;
  color: var(--danger);
}

.alert-success {
  background: #dcfce7;
  color: var(--success);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  box-sizing: border-box;
}

.form-group label {
  font-weight: 500;
  font-size: 0.9rem;
}

.form-grid label {
  font-weight: 500;
  font-size: 0.9rem;
}

.auth-wrapper {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.auth-card {
  width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.details {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 10px 16px;
}

.tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.tab {
  padding: 10px 14px;
  border-radius: 8px;
  background: #e5e7eb;
  color: #111827;
}

.tab.active {
  background: #dbeafe;
  color: #1d4ed8;
}

.muted,
.hint {
  color: var(--muted);
}