:root {
  --bg: #14161f;
  --bg-header: #10121a;
  --surface: #171a24;
  --surface-raised: #1c202c;
  --border: #262b3a;
  --text: #e7e9ee;
  --text-muted: #7c8aa5;
  --label: #5b9cf0;
  --accent: #2f6fed;
  --accent-hover: #4a84f5;
  --danger: #e2645a;
  --success: #3ecf8e;
  --warning: #e0a83e;
  --radius: 4px;
  font-family: Arial, "Segoe UI", Roboto, Helvetica, sans-serif;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
}

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

header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: var(--bg-header);
  border-bottom: 1px solid var(--border);
}

header.topbar h1 {
  font-size: 15px;
  margin: 0;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.01em;
}

nav.tabs {
  display: flex;
  gap: 22px;
}

nav.tabs a {
  padding: 6px 0;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
}

nav.tabs a.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

nav.tabs a:hover {
  color: var(--text);
}

main {
  flex: 1;
  padding: 28px;
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 20px;
}

.card h2 {
  margin: 0 0 18px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.card h2 small {
  font-weight: 400;
  color: var(--text-muted);
  text-transform: none;
  letter-spacing: normal;
  margin-left: 4px;
}

form.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 16px;
  align-items: end;
}

label {
  display: flex;
  flex-direction: column;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--label);
  gap: 6px;
}

label small {
  font-weight: 400;
  color: var(--text-muted);
}

input,
select,
textarea {
  font: inherit;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  background: var(--surface-raised);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
}

textarea {
  resize: vertical;
  min-height: 60px;
}

button {
  font: inherit;
  font-weight: 600;
  font-size: 13px;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  background: var(--accent);
  color: white;
}

button:hover {
  background: var(--accent-hover);
}

button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

button.secondary:hover {
  background: var(--surface-raised);
}

button.danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
}

button.danger:hover {
  background: rgba(226, 100, 90, 0.12);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

th,
td {
  text-align: left;
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

tr:last-child td {
  border-bottom: none;
}

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  border: 1px solid transparent;
}

.badge.concept {
  background: rgba(124, 138, 165, 0.15);
  color: var(--text-muted);
}

.badge.ingediend,
.badge.weggeschreven {
  background: rgba(224, 168, 62, 0.15);
  color: var(--warning);
}

.badge.gefactureerd {
  background: rgba(62, 207, 142, 0.15);
  color: var(--success);
}

.badge.geannuleerd,
.badge.kan_niet {
  background: rgba(226, 100, 90, 0.15);
  color: var(--danger);
}

.row-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.row-actions button {
  padding: 5px 10px;
  font-size: 12px;
}

.hint {
  font-size: 12.5px;
  color: var(--text-muted);
  margin: 6px 0 0;
}

.hint a {
  color: var(--label);
}

.error {
  background: rgba(226, 100, 90, 0.12);
  border: 1px solid rgba(226, 100, 90, 0.4);
  color: var(--danger);
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 16px;
  white-space: pre-wrap;
}

.success-banner {
  background: rgba(62, 207, 142, 0.12);
  border: 1px solid rgba(62, 207, 142, 0.4);
  color: var(--success);
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 16px;
}

.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.login-card {
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-card h1 {
  font-size: 19px;
  margin: 0 0 4px;
  color: var(--text);
  font-weight: 600;
}

.login-card .subtitle {
  margin: -10px 0 4px;
  color: var(--text-muted);
  font-size: 13px;
}