:root {
  --bg: #f4f6fb;
  --panel: #ffffff;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --brand: #2563eb;
  --brand-soft: #eef2ff;
  --on: #16a34a;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, "Segoe UI", Roboto, sans-serif; color: var(--ink); background: var(--bg); }

.app { display: grid; grid-template-columns: 250px 1fr; min-height: 100vh; }

.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--line);
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.brand { display: flex; align-items: center; gap: 10px; margin: 4px 8px 18px; color: var(--brand); }
.brand-logo { display: inline-flex; color: var(--brand); }
.brand-name { font-weight: 800; font-size: 19px; letter-spacing: .2px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  width: 100%; text-align: left;
  background: transparent; border: 0; border-radius: 8px;
  padding: 10px 10px; font-size: 14px; color: var(--ink); cursor: pointer;
}
.nav-item:hover { background: var(--bg); }
.nav-item.active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.ico { width: 18px; text-align: center; }
.hint { margin-top: auto; font-size: 12px; color: var(--muted); padding: 12px 8px 0; }

.content { padding: 32px 40px; }
h1 { margin: 0 0 6px; font-size: 24px; }
.muted { color: var(--muted); }

.banner { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; }
.banner.error { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin-top: 20px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.card.on { border-color: #bbf7d0; }
.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.card-title { font-weight: 600; }
.card-cat { font-size: 12px; color: var(--muted); margin-top: 2px; }
.card-desc { font-size: 14px; color: #374151; margin: 10px 0 12px; }
.card-foot { display: flex; flex-wrap: wrap; gap: 6px; }

.tag { font-size: 12px; padding: 3px 8px; border-radius: 999px; background: #f3f4f6; color: var(--muted); }
.tag.on { background: #dcfce7; color: var(--on); }
.tag.core { background: var(--brand-soft); color: var(--brand); }
.tag.dep { background: #fef9c3; color: #854d0e; }

.toggle { width: 44px; height: 26px; border-radius: 999px; border: 0; background: #d1d5db; position: relative; cursor: pointer; transition: background .15s; flex: none; }
.toggle.on { background: var(--on); }
.toggle:disabled { opacity: .5; cursor: not-allowed; }
.knob { position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; background: #fff; border-radius: 50%; transition: left .15s; }
.toggle.on .knob { left: 21px; }

/* --- Formulieren --- */
.form-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 18px 0; }
.form-card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin: 18px 0; }
.form-card .form-row { margin: 0 0 12px; }
input, select {
  font: inherit; padding: 9px 11px; border: 1px solid var(--line);
  border-radius: 8px; background: #fff; color: var(--ink); min-width: 150px;
}
input:focus, select:focus { outline: 2px solid var(--brand-soft); border-color: var(--brand); }

.btn { font: inherit; padding: 9px 14px; border-radius: 8px; border: 1px solid var(--line); background: #fff; cursor: pointer; }
.btn:hover { background: var(--bg); }
.btn.primary { background: var(--brand); color: #fff; border-color: var(--brand); }
.btn.primary:hover { filter: brightness(1.05); }

.link { background: none; border: 0; color: var(--brand); cursor: pointer; padding: 2px 4px; font: inherit; }
.link:hover { text-decoration: underline; }
.link.danger { color: #b91c1c; }

/* --- Tabel --- */
.grid { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.grid th, .grid td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); font-size: 14px; vertical-align: top; }
.grid th { background: #fafbff; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); }
.grid tr:last-child td { border-bottom: 0; }
.row-actions { display: flex; gap: 10px; white-space: nowrap; }
.small { font-size: 12px; }

/* --- Chips / filters --- */
.filterbar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 8px 0 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.chip { font: inherit; font-size: 13px; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line); background: #fff; cursor: pointer; }
.chip:hover { background: var(--bg); }
.chip.on { background: var(--brand); color: #fff; border-color: var(--brand); }
.leden-keuze { margin: 4px 0 12px; }

.badge { display: inline-block; min-width: 22px; text-align: center; padding: 1px 7px; border-radius: 999px; background: var(--brand-soft); color: var(--brand); font-size: 12px; font-weight: 600; }

/* --- Fase 2 --- */
.kleur-stip { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 8px; vertical-align: middle; border: 1px solid rgba(0,0,0,.1); }
.veld { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); }
.veld input, .veld select { min-width: auto; }
.rij-actief { background: var(--brand-soft); }
input[type="color"] { padding: 2px; width: 44px; min-width: 44px; height: 38px; }

.subpaneel { margin-top: 24px; padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: #fafbff; }
.subpaneel h2 { margin: 0 0 12px; font-size: 18px; }

.tag.dag-studiedag { background: #e0e7ff; color: #3730a3; }
.tag.dag-vrije_dag { background: #fee2e2; color: #b91c1c; }
.tag.dag-vakantie { background: #dcfce7; color: #166534; }

.rooster-grid { display: grid; grid-template-columns: repeat(5, minmax(220px, 1fr)); gap: 12px; margin-top: 20px; }
.rooster-kolom { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 8px; min-height: 80px; }
.rooster-dag { position: relative; font-weight: 600; font-size: 13px; text-align: center; padding: 6px 32px 6px 0; border-bottom: 1px solid var(--line); margin-bottom: 8px; min-height: 36px; }
.rooster-blok { border: 1px solid var(--line); border-left: 4px solid var(--brand); border-radius: 8px; padding: 8px; margin-bottom: 8px; background: #fff; }
.rooster-blok.open { box-shadow: 0 0 0 2px var(--brand-soft); }
.rb-top { display: flex; justify-content: space-between; align-items: center; gap: 6px; }
.rb-top strong { min-width: 0; flex: 1; }
.link.small { font-size: 16px; line-height: 1; padding: 0 4px; }
@media (max-width: 900px) { .rooster-grid { grid-template-columns: 1fr; } }

/* --- Fase 3: weekweergave, drag-and-drop, touch --- */
.rooster-balk { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 16px 0; }
.week-nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.week-label { font-weight: 600; }

.rooster-kolom.vrij { background: repeating-linear-gradient(45deg, #fafafa, #fafafa 8px, #f1f1f4 8px, #f1f1f4 16px); }
.rooster-dag .tag { display: inline-block; margin-top: 4px; }

.slot-cel { border: 1px dashed transparent; border-radius: 8px; padding: 4px; margin-bottom: 8px; transition: background .1s, border-color .1s; }
.slot-cel.hover { border-color: var(--brand); background: var(--brand-soft); }
.slot-tijd { font-size: 11px; color: var(--muted); padding: 2px 2px 4px; }

.rooster-blok { touch-action: none; }
.rooster-blok.vervallen { opacity: .55; }
.rooster-blok.vervallen strong { text-decoration: line-through; }
.rb-greep { cursor: grab; color: var(--muted); font-size: 16px; padding: 0 4px; touch-action: none; user-select: none; }
.rb-greep:active { cursor: grabbing; }
.rb-x { margin-left: auto; }
.icon-btn { width: 28px; height: 28px; display: inline-grid; place-items: center; border: 1px solid transparent; border-radius: 6px; background: transparent; color: var(--muted); cursor: pointer; font: inherit; line-height: 1; flex: none; }
.icon-btn:hover { background: var(--bg); color: var(--ink); border-color: var(--line); }
.icon-btn.danger { color: #b91c1c; }
.icon-label { display: inline-flex; align-items: center; gap: 6px; }
.rb-status { color: #b91c1c; font-weight: 600; }
.rb-verv { color: #166534; font-weight: 600; }
.rb-verval { display: inline-block; margin-top: 4px; }
.afwezig { text-decoration: line-through; color: #b91c1c; }

.drag-ghost { position: fixed; z-index: 1000; pointer-events: none; background: var(--brand); color: #fff; padding: 6px 12px; border-radius: 8px; font-size: 13px; font-weight: 600; box-shadow: 0 6px 18px rgba(0,0,0,.25); }

.dag-actie { position: absolute; right: 0; top: 3px; margin: 0; }
.sneltoets-hint { margin: -4px 0 12px; }

/* --- Groepsindeling --- */
.indeling { margin-top: 12px; }
.indeling-hoofd { background: var(--brand); color: #fff; border-radius: 10px; padding: 12px 16px; font-weight: 700; font-size: 16px; text-align: center; }
.indeling-groepen { display: grid; gap: 14px; margin: 12px 0 16px; }
.indeling-groep { border: 1px solid var(--line); border-radius: 8px; background: #fafbff; padding: 10px; }
.indeling-groep-kop { font-weight: 700; margin-bottom: 8px; color: var(--brand); }
.indeling-kolommen { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; margin: 12px 0 16px; }
.indeling-kolom { border: 1px solid var(--line); border-top: 3px solid var(--brand); border-radius: 10px; padding: 10px 12px; background: var(--panel); display: flex; flex-direction: column; gap: 4px; }
.indeling-kop { font-weight: 600; margin-bottom: 2px; }
@media (max-width: 700px) { .indeling-kolommen { grid-template-columns: 1fr; } }

.blok-splitsing { position: relative; border: 1px solid #bfdbfe; border-radius: 8px; background: linear-gradient(180deg, #eff6ff 0, #f8fbff 42px, #fff 100%); padding: 8px; margin-bottom: 8px; }
.split-header { display: flex; align-items: center; gap: 8px; border: 1px solid #bfdbfe; border-radius: 7px; background: #fff; padding: 6px 8px; margin-bottom: 12px; }
.split-icon { width: 24px; height: 24px; display: inline-grid; place-items: center; border-radius: 6px; background: var(--brand); color: #fff; font-weight: 800; flex: none; }
.split-title { display: flex; flex-direction: column; gap: 1px; min-width: 0; line-height: 1.15; flex: 1; }
.split-title strong { font-size: 13px; color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.split-title span { font-size: 11px; color: var(--muted); }
.split-count { min-width: 22px; height: 22px; display: inline-grid; place-items: center; border-radius: 999px; background: var(--brand-soft); color: var(--brand); font-size: 12px; font-weight: 800; }
.split-groep { font-size: 12px; font-weight: 800; color: var(--brand); margin: 0 2px 7px; }
.split-kolommen { position: relative; display: grid; grid-template-columns: repeat(auto-fit, minmax(135px, 1fr)); gap: 7px; align-items: start; padding-top: 12px; }
.split-kolommen::before { content: ""; position: absolute; top: 0; left: 10%; right: 10%; border-top: 2px solid #bfdbfe; }
.split-kolom { position: relative; min-width: 0; border-left: 1px solid var(--line); padding-left: 7px; }
.split-kolom::before { content: ""; position: absolute; top: -12px; left: 50%; width: 2px; height: 12px; background: #bfdbfe; }
.split-kolom:first-child { border-left: 0; padding-left: 0; }
.split-kop { font-size: 11px; font-weight: 700; color: var(--muted); margin: 0 0 4px; }
.split-vak { position: relative; border: 1px solid var(--line); border-left: 4px solid var(--brand); border-radius: 6px; background: #fff; padding: 6px 6px 5px; margin-bottom: 6px; cursor: pointer; box-shadow: 0 1px 0 rgba(31,41,55,.03); }
.split-vak.open { box-shadow: 0 0 0 2px var(--brand-soft); }
.split-vak.vervallen { opacity: .55; }
.split-vak-kop { display: flex; align-items: center; gap: 5px; }
.split-vak-kop strong { min-width: 0; flex: 1; font-size: 12px; }
.split-vak-meta { display: flex; flex-direction: column; gap: 1px; color: var(--muted); font-size: 11px; margin-top: 2px; }
.klas-strip { display: flex; flex-wrap: wrap; gap: 6px; flex-basis: 100%; }

/* --- Blok-bewerker --- */
.blok-editor { margin-top: 8px; padding: 8px; border: 1px solid var(--line); border-radius: 8px; background: #f9fafb; cursor: default; }
.blok-editor-kop { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 6px; }
.editor-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 7px; margin: 7px 0; }
.editor-grid input, .editor-grid select { width: 100%; min-width: 0; font-size: 12px; padding: 7px 8px; }
.editor-detail { border-top: 1px dashed var(--line); padding-top: 7px; margin-top: 7px; }
.editor-detail summary { cursor: pointer; color: var(--brand); font-size: 12px; font-weight: 700; }
.editor-actions { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 8px; }
.editor-check { margin: 6px 0; }
.chips.compact { gap: 5px; margin-top: 6px; }
.chips.compact .chip { font-size: 12px; padding: 5px 8px; }
.split-editor { background: #f8fbff; border: 1px solid #dbeafe; border-radius: 7px; padding: 7px; }
.split-preview { margin: 8px 0; padding: 8px; border-radius: 7px; background: #fff; border: 1px solid #dbeafe; }
.split-preview-root { display: inline-block; padding: 5px 9px; border-radius: 6px; background: var(--brand); color: #fff; font-size: 12px; font-weight: 800; }
.split-preview-children { position: relative; display: flex; flex-wrap: wrap; gap: 6px; margin-top: 13px; padding-top: 13px; }
.split-preview-children::before { content: ""; position: absolute; top: 0; left: 12px; right: 12px; border-top: 2px solid #bfdbfe; }
.split-preview-children span { position: relative; padding: 5px 8px; border-radius: 6px; background: var(--brand-soft); color: var(--brand); font-size: 12px; font-weight: 700; }
.split-preview-children span::before { content: ""; position: absolute; top: -13px; left: 50%; width: 2px; height: 13px; background: #bfdbfe; }
.structuur-form h2 { margin: 0 0 10px; font-size: 17px; }
.check-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 7px; margin-top: 8px; }
.check-item { display: flex; align-items: center; gap: 7px; min-width: 0; border: 1px solid var(--line); border-radius: 7px; background: #fff; padding: 7px 9px; font-size: 13px; }
.check-item input { min-width: auto; }
.check-item span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lijst-kop { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.structuur-overzicht { display: grid; gap: 14px; margin-top: 18px; }
.structuur-card { border: 1px solid #bfdbfe; border-radius: 8px; background: #f8fbff; padding: 12px; }
.structuur-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.structuur-head.compact { align-items: center; margin-bottom: 6px; }
.structuur-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 10px; }
.structuur-groep { border: 1px solid var(--line); border-top: 3px solid var(--brand); border-radius: 8px; background: #fff; padding: 10px; }
.structuur-subgroepen { display: grid; gap: 7px; margin-top: 9px; padding-top: 9px; border-top: 1px dashed var(--line); }
.structuur-subgroep { border-left: 3px solid #93c5fd; border-radius: 6px; background: #f9fafb; padding: 7px 9px; }
.modal-overlay { position: fixed; inset: 0; background: rgba(15,23,42,.45); display: flex; align-items: flex-start; justify-content: center; padding: 40px 16px; z-index: 900; overflow: auto; }
.modal { background: var(--panel); border-radius: 12px; padding: 18px 20px; width: min(560px, 100%); box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.modal-kop { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.modal-kop h2 { margin: 0; font-size: 18px; }
.modal-hr { border: 0; border-top: 1px solid var(--line); margin: 16px 0 12px; }
.rooster-blok.klikbaar { cursor: pointer; }
.rooster-blok.klikbaar:hover { box-shadow: 0 0 0 2px var(--brand-soft); }
.scope-balk { margin-top: -6px; }

/* --- Afdrukken --- */
.print-knop { margin-left: auto; background: #fff; }
@media print {
  .sidebar, .no-print, .tabbar, .rooster-balk, .banner,
  .rb-greep, .rb-x, .rb-verval, .icon-btn, .print-knop, .drag-ghost { display: none !important; }
  body { background: #fff; }
  .app { display: block; }
  .content { padding: 0; }
  .rooster-scherm h1 { margin: 0 0 8px; }
  .rooster-grid { grid-template-columns: repeat(5, 1fr); gap: 4px; }
  .rooster-kolom { border-color: #999; }
  .rooster-blok { break-inside: avoid; }
}

/* --- Onderkant zijbalk: subtiel Instellingen-blok --- */
.sidebar-foot { margin-top: auto; padding-top: 10px; border-top: 1px solid var(--line); }
.nav-group-head.subtiel { color: var(--muted); opacity: .8; }
.nav-group-head.subtiel:hover { opacity: 1; }

/* --- Submenu's in de zijbalk --- */
.nav-group { margin-top: 2px; }
.nav-group-head { display: flex; justify-content: space-between; align-items: center; width: 100%; background: transparent; border: 0; cursor: pointer; padding: 10px 10px 4px; font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); font-weight: 700; }
.nav-chev { font-size: 10px; }
.nav-item.nav-sub { padding-left: 26px; font-size: 13.5px; }

/* --- Tabs (o.a. in het Rooster) --- */
.tabbar { display: flex; gap: 6px; margin: 8px 0 16px; border-bottom: 1px solid var(--line); }
.tab { background: transparent; border: 0; border-bottom: 2px solid transparent; padding: 10px 14px; font: inherit; cursor: pointer; color: var(--muted); }
.tab:hover { color: var(--ink); }
.tab.on { color: var(--brand); border-bottom-color: var(--brand); font-weight: 600; }
.instellingen > section { margin-top: 24px; padding-top: 8px; border-top: 1px dashed var(--line); }
.instellingen > section:first-of-type { border-top: 0; }

/* --- Conflicten --- */
.conflict { border: 1px solid var(--line); border-left: 4px solid #b91c1c; border-radius: 8px; padding: 10px 14px; margin-bottom: 10px; background: #fff; }
.conflict.waarschuwing { border-left-color: #b45309; }
.conflict-kop { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }

/* Touch-vriendelijk: ruimere tikdoelen op kleinere/aanraakschermen. */
@media (pointer: coarse) {
  .btn, .chip, input, select { min-height: 44px; }
  .nav-item { padding: 14px 12px; font-size: 15px; }
  .link { padding: 8px 6px; display: inline-block; }
  .rb-greep { font-size: 22px; padding: 4px 10px; }
  .grid th, .grid td { padding: 14px; }
}

/* --- Login --- */
.center-msg { text-align: center; margin-top: 20vh; color: var(--muted); }
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 28px; width: 320px; display: flex; flex-direction: column; gap: 12px;
  box-shadow: 0 8px 30px rgba(31, 41, 55, .06);
}
.login-brand { margin: 0 0 4px; justify-content: center; }
.login-card input { width: 100%; }
.login-card .btn { width: 100%; }

/* --- Gebruiker in zijbalk --- */
.sidebar-user {
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px; padding: 10px 8px 0; border-top: 1px solid var(--line); margin-top: 12px;
}