:root {
  --blue-900: #0b3d5c;
  --blue-700: #0e6ba8;
  --blue-500: #1a8fe3;
  --blue-100: #e6f3fb;
  --green: #1f9d55;
  --amber: #d97706;
  --red: #dc2626;
  --gray-900: #1a2027;
  --gray-700: #4a5568;
  --gray-500: #8492a6;
  --gray-300: #d8e0e8;
  --gray-100: #f4f7fa;
  --white: #ffffff;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(15, 40, 60, 0.08), 0 1px 2px rgba(15, 40, 60, 0.06);
  --shadow-md: 0 4px 16px rgba(15, 40, 60, 0.12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--gray-100);
  color: var(--gray-900);
}

/* Login */
.login-screen {
  display: none;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: var(--blue-900);
}
.login-screen.active { display: flex; }
.login-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 2rem;
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.login-brand {
  color: var(--blue-900);
  font-size: 1.3rem;
  justify-content: center;
  margin-bottom: 0.2rem;
}
.login-error {
  color: var(--red);
  font-size: 0.85rem;
  min-height: 1.1em;
  margin: 0;
}

/* Topbar */
.topbar {
  background: var(--blue-900);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  flex-wrap: wrap;
  gap: 0.75rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.1rem;
}

.brand-icon { font-size: 1.3rem; }

.tabs {
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
}

.tab-btn {
  background: transparent;
  border: none;
  color: rgba(255,255,255,0.75);
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.92rem;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.tab-btn:hover { background: rgba(255,255,255,0.08); color: var(--white); }
.tab-btn.active { background: var(--blue-500); color: var(--white); font-weight: 600; }

/* Main */
main { max-width: 1100px; margin: 0 auto; padding: 1.25rem; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

h1 { font-size: 1.4rem; margin: 0 0 1rem; }
h2 { font-size: 1rem; margin: 0 0 0.75rem; }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.panel-header h1 { margin: 0; }

/* Buttons */
.btn {
  border: none;
  border-radius: 8px;
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
  cursor: pointer;
  font-weight: 600;
  transition: filter 0.15s, background 0.15s;
}
.btn-primary { background: var(--blue-500); color: var(--white); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-secondary { background: var(--gray-300); color: var(--gray-900); }
.btn-danger { background: #fde8e8; color: var(--red); }
.btn-danger:hover { background: #fbd5d5; }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.8rem; }
.btn-block { width: 100%; }

/* Filter row */
.filter-row {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.filter-row input[type="search"] {
  flex: 1;
  min-width: 200px;
}
input, select, textarea {
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  font-size: 0.9rem;
  font-family: inherit;
  background: var(--white);
  color: var(--gray-900);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px var(--blue-100);
}

/* Stat grid */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.9rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}
.stat-card .stat-value { font-size: 1.7rem; font-weight: 700; color: var(--blue-900); }
.stat-card .stat-label { font-size: 0.82rem; color: var(--gray-700); margin-top: 0.15rem; }
.stat-card.warn .stat-value { color: var(--amber); }
.stat-card.danger .stat-value { color: var(--red); }

.dash-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.hint { font-size: 0.8rem; color: var(--gray-500); margin: -0.4rem 0 0.6rem; }

.mini-list { display: flex; flex-direction: column; gap: 0.5rem; }
.mini-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.6rem;
  background: var(--gray-100);
  border-radius: 8px;
  font-size: 0.85rem;
}
.empty-msg { color: var(--gray-500); font-size: 0.85rem; padding: 0.5rem 0; }

/* List (systemen / onderhoud) */
.list { display: flex; flex-direction: column; gap: 0.7rem; }

.item-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.9rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.item-main { flex: 1; min-width: 220px; }
.item-title { font-weight: 700; font-size: 0.98rem; margin-bottom: 0.15rem; }
.item-sub { color: var(--gray-700); font-size: 0.85rem; }
.item-meta { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.5rem; }
.item-actions { display: flex; gap: 0.4rem; align-items: center; }

.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
}
.badge-online { background: #e3f7ea; color: var(--green); }
.badge-offline { background: #fdeeea; color: var(--red); }
.badge-gepland { background: var(--blue-100); color: var(--blue-700); }
.badge-voltooid { background: #e3f7ea; color: var(--green); }
.badge-geannuleerd { background: var(--gray-300); color: var(--gray-700); }
.badge-idee { background: var(--gray-300); color: var(--gray-700); }
.badge-gepland-proj { background: var(--blue-100); color: var(--blue-700); }
.badge-uitvoering { background: #fff4e0; color: var(--amber); }
.badge-afgerond { background: #e3f7ea; color: var(--green); }

/* Projects board */
.board {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}
.project-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}
.project-card .item-title { font-size: 1rem; }
.project-meta { font-size: 0.82rem; color: var(--gray-700); margin: 0.4rem 0; }
.task-list { margin: 0.6rem 0; display: flex; flex-direction: column; gap: 0.3rem; }
.task-row { display: flex; align-items: center; gap: 0.4rem; font-size: 0.85rem; }
.task-row input[type="checkbox"] { accent-color: var(--blue-500); }
.task-row.done label { text-decoration: line-through; color: var(--gray-500); }
.progress-bar { height: 6px; background: var(--gray-300); border-radius: 999px; overflow: hidden; margin: 0.4rem 0; }
.progress-fill { height: 100%; background: var(--blue-500); }

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 30, 0.45);
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 100;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--gray-300);
  position: sticky;
  top: 0;
  background: var(--white);
}
.modal-header h2 { margin: 0; font-size: 1.05rem; }
.modal-close {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--gray-500);
  line-height: 1;
}
.modal-body { padding: 1.2rem; display: flex; flex-direction: column; gap: 0.85rem; }
.form-row { display: flex; flex-direction: column; gap: 0.3rem; }
.form-row label { font-size: 0.82rem; font-weight: 600; color: var(--gray-700); }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; }
.form-actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 0.5rem; }
.checkbox-row { display: flex; align-items: center; gap: 0.5rem; }
.checkbox-row label { font-weight: 600; font-size: 0.88rem; }

/* Toast */
.toast {
  position: fixed;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--gray-900);
  color: var(--white);
  padding: 0.6rem 1.1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 200;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Agenda */
.agenda-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.agenda-month-label {
  font-weight: 700;
  font-size: 1.05rem;
  min-width: 140px;
  text-align: center;
}
.agenda-legend {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--gray-700);
  margin-bottom: 0.75rem;
}
.agenda-legend .dot { margin-right: 0.3rem; }
.dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  vertical-align: middle;
}
.dot-onderhoud { background: var(--blue-500); }
.dot-start { background: var(--amber); }
.dot-streef { background: var(--green); }

.agenda-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: var(--gray-300);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  overflow: hidden;
}
.agenda-weekday {
  background: var(--gray-100);
  padding: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gray-700);
  text-align: center;
}
.agenda-day {
  background: var(--white);
  min-height: 90px;
  min-width: 0;
  padding: 0.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  overflow: hidden;
  cursor: pointer;
  transition: background 0.1s;
}
.agenda-day:hover { background: var(--blue-100); }
.agenda-day.other-month:hover { background: var(--gray-300); }
.agenda-weekday, .agenda-day { min-width: 0; }
.agenda-day.other-month { background: var(--gray-100); }
.agenda-day.today { box-shadow: inset 0 0 0 2px var(--blue-500); }
.agenda-day-num {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--gray-700);
}
.agenda-event {
  font-size: 0.68rem;
  line-height: 1.3;
  padding: 0.1rem 0.3rem;
  border-radius: 4px;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--white);
}
.agenda-event.ev-onderhoud { background: var(--blue-500); }
.agenda-event.ev-start { background: var(--amber); }
.agenda-event.ev-streef { background: var(--green); }

@media (max-width: 640px) {
  .agenda-day { min-height: 60px; }
  .agenda-event { font-size: 0.6rem; }
  .agenda-legend { font-size: 0.72rem; gap: 0.6rem; }
}

/* Responsive */
@media (max-width: 640px) {
  .topbar { flex-direction: column; align-items: flex-start; }
  .tabs { width: 100%; }
  .form-row-2 { grid-template-columns: 1fr; }
  .item-card { flex-direction: column; }
}