:root {
  --bg: #f0f2f7;
  --surface: #ffffff;
  --surface2: #f5f6fa;
  --border: #dde1ee;
  --accent: #4f46e5;
  --accent-dark: #3f38c4;
  --text: #1a1d2e;
  --text-muted: #6b7280;
  --green: #16a34a;
  --red: #dc2626;
  --yellow: #d97706;
  --blue: #2563eb;
  --radius: 10px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
}

/* ── LOGIN ── */
.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow);
}

.login-card h1 {
  font-size: 22px;
  margin-bottom: 6px;
  color: var(--text);
}

.login-card .subtitle {
  color: var(--text-muted);
  margin-bottom: 28px;
  font-size: 13px;
}

/* ── FORM ELEMENTS ── */
label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

input, select, textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 9px 12px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
  margin-bottom: 16px;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
}
textarea { resize: vertical; min-height: 70px; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: opacity 0.15s, background 0.15s;
}
.btn:hover { opacity: 0.88; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-danger  { background: var(--red); color: #fff; }
.btn-ghost   { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }
.btn-sm      { padding: 5px 11px; font-size: 12px; }
.btn-full    { width: 100%; justify-content: center; }

/* ── LAYOUT ── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px 0;
  flex-shrink: 0;
}

.sidebar-logo {
  padding: 0 20px 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}
.sidebar-logo h2 { font-size: 16px; color: var(--accent); }
.sidebar-logo p  { font-size: 11px; color: var(--text-muted); margin-top: 3px; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 0;
  transition: background 0.15s, color 0.15s;
  border-left: 3px solid transparent;
  font-size: 13px;
}
.nav-item:hover { background: var(--surface2); color: var(--text); }
.nav-item.active { background: var(--surface2); color: var(--accent); border-left-color: var(--accent); }
.nav-item .icon { width: 18px; text-align: center; }

.sidebar-footer {
  margin-top: auto;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}
.sidebar-footer .user-name { font-size: 13px; font-weight: 600; }
.sidebar-footer .user-role { font-size: 11px; color: var(--text-muted); }

.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 28px;
}

.page-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 20px;
}

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

/* ── TABLES ── */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th {
  text-align: left;
  padding: 10px 12px;
  background: var(--surface2);
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tr:hover td { background: rgba(108,99,255,0.04); }
tr.cancelled td { opacity: 0.45; text-decoration: line-through; }

/* ── BADGES / STATUS ── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}
.badge-ja  { background: rgba(46,204,113,0.18); color: #2ecc71; }
.badge-nee { background: rgba(231,76,60,0.18);  color: #e74c3c; }
.badge-evt { background: rgba(243,156,18,0.18); color: #f39c12; }
.badge-info { background: rgba(52,152,219,0.18); color: #3498db; }
.badge-cancel { background: rgba(231,76,60,0.12); color: #e74c3c; border: 1px solid rgba(231,76,60,0.3); }

/* Technisch lijst status */
.tl-ja        { color: var(--green); }
.tl-nee       { color: var(--red); }
.tl-opgevraagd { color: var(--yellow); }

/* ── AVAIL BUTTONS ── */
.avail-btn {
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.15s;
}
.avail-btn:hover { opacity: 0.8; }
.avail-btn.active-ja  { background: rgba(46,204,113,0.2); border-color: #2ecc71; color: #2ecc71; }
.avail-btn.active-nee { background: rgba(231,76,60,0.2);  border-color: #e74c3c; color: #e74c3c; }
.avail-btn.active-evt { background: rgba(243,156,18,0.2); border-color: #f39c12; color: #f39c12; }

/* ── ASSIGNED TAGS ── */
.assigned-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  margin: 1px 2px;
  background: rgba(108,99,255,0.2);
  color: var(--accent);
}

/* ── MODAL ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open { display: flex; }

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
}

.modal h3 { font-size: 17px; margin-bottom: 20px; }

.modal-footer {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* ── CHECKBOX GROUP ── */
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0;
  font-size: 13px;
  color: var(--text);
  transition: border-color 0.15s;
}
.checkbox-group label:hover { border-color: var(--accent); }
.checkbox-group input[type=checkbox] {
  width: auto;
  margin: 0;
  accent-color: var(--accent);
}

/* ── ALERTS ── */
.alert {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 14px;
  font-size: 13px;
}
.alert-error { background: rgba(231,76,60,0.15); border: 1px solid rgba(231,76,60,0.3); color: #e74c3c; }
.alert-success { background: rgba(46,204,113,0.15); border: 1px solid rgba(46,204,113,0.3); color: #2ecc71; }

/* ── TABS ── */
.tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}
.tab-btn {
  padding: 10px 16px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ── STATS ROW ── */
.stats-row {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.stat-card {
  flex: 1;
  min-width: 120px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
}
.stat-card .stat-num { font-size: 28px; font-weight: 700; color: var(--accent); }
.stat-card .stat-label { font-size: 12px; color: var(--text-muted); margin-top: 3px; }

/* ── TOP BAR ── */
.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.topbar .spacer { flex: 1; }

/* ── PDF LINK ── */
.pdf-link {
  color: var(--blue);
  text-decoration: none;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.pdf-link:hover { text-decoration: underline; }

/* ── INLINE FORM ── */
.inline-form { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
.inline-form .form-group { flex: 1; min-width: 140px; }
.inline-form .form-group input,
.inline-form .form-group select { margin-bottom: 0; }

/* ── TOTALS ROW ── */
.totals-row td { font-weight: 700; background: var(--surface2); }

/* ── TOGGLE ── */
.toggle-wrap { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; }
.toggle-wrap input[type=checkbox] { width: auto; margin: 0; accent-color: var(--accent); }
.toggle-wrap label { margin: 0; text-transform: none; letter-spacing: 0; font-size: 13px; color: var(--text); }

@media (max-width: 768px) {
  .sidebar { display: none; }
  .main-content { padding: 16px; }
}