:root {
  --blue: #1a3a5c;
  --blue-mid: #2563a8;
  --blue-light: #d0e4f5;
  --accent: #e8a020;
  --green: #1a7a3c;
  --red: #b81c1c;
  --bg: #f0f4f8;
  --card: #ffffff;
  --border: #c0ccd8;
  --text: #1a2330;
  --muted: #6b7a8a;
  --radius: 10px;
}

* { 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;
}

/* ======= TOP BAR ======= */
#topbar {
  background: var(--blue); color: #fff; padding: 0 20px; height: 56px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
#topbar .brand { font-size: 18px; font-weight: 700; letter-spacing: 1px; }
#topbar .brand span { color: var(--accent); }
#user-info { display: flex; align-items: center; gap: 10px; font-size: 14px; }
/* Verbindingsindicator */
#conn-status {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: rgba(255,255,255,0.75);
  margin-left: 8px;
}
#conn-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
  transition: background 0.3s;
}
#conn-dot.online  { background: #4ade80; }
#conn-dot.offline { background: #f87171; }
#conn-dot.syncing { background: #fbbf24; animation: conn-pulse 1.2s ease-in-out infinite; }
@keyframes conn-pulse { 0%,100% { opacity:1; } 50% { opacity:0.3; } }

#btn-profiel {
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25);
  color: #fff; padding: 6px 12px; border-radius: 6px; cursor: pointer; font-size: 13px;
}
#btn-profiel:hover { background: rgba(255,255,255,0.22); }
#btn-stats, #btn-admin, #btn-editor {
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25);
  color: #fff; padding: 6px 12px; border-radius: 6px; cursor: pointer; font-size: 13px;
}
#btn-stats:hover, #btn-admin:hover, #btn-editor:hover { background: rgba(255,255,255,0.22); }
#btn-logout {
  background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.3);
  color: #fff; padding: 6px 14px; border-radius: 6px; cursor: pointer; font-size: 13px;
}

/* ======= FORM SUB-HEADER ======= */
#form-subheader {
  display: none;
  position: sticky;
  top: 56px;
  background: #152e4a;
  color: rgba(255,255,255,0.92);
  padding: 6px 20px;
  font-size: 13px;
  z-index: 99;
  border-top: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
  display: none;
  align-items: center;
  gap: 16px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#form-subheader .sub-type { font-weight: 700; }
#form-subheader .sub-sep { opacity: 0.4; }
#form-subheader .sub-nr  { opacity: 0.7; font-size: 12px; margin-left: auto; }

/* ======= SCREENS ======= */
.screen { display: none; }
.screen.active { display: block; }

/* ======= LOGIN ======= */
#screen-login {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #0d2540 0%, #1a3a5c 60%, #2563a8 100%);
}
.login-card {
  background: #fff; border-radius: 16px; padding: 40px 36px;
  width: 100%; max-width: 380px; box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.login-card h1 { font-size: 24px; color: var(--blue); margin-bottom: 4px; }
.login-card p { color: var(--muted); margin-bottom: 28px; font-size: 14px; }
.login-card .field { margin-bottom: 16px; }
.login-card label { display: block; font-size: 13px; font-weight: 600; color: var(--blue); margin-bottom: 5px; }
.login-card input {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--border);
  border-radius: 8px; font-size: 16px; outline: none; transition: border-color 0.2s;
}
.login-card input:focus { border-color: var(--blue-mid); }
#btn-login {
  width: 100%; padding: 14px; background: var(--blue); color: #fff;
  border: none; border-radius: 8px; font-size: 16px; font-weight: 700;
  cursor: pointer; margin-top: 8px; transition: background 0.2s;
}
#btn-login:hover { background: var(--blue-mid); }
#login-error { color: var(--red); font-size: 13px; margin-top: 10px; text-align: center; }

/* ======= DASHBOARD ======= */
#screen-dashboard { padding: 20px; }
.dash-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 20px; flex-wrap: wrap; gap: 10px;
}
.dash-header h2 { font-size: 22px; color: var(--blue); }

.btn-primary {
  background: var(--blue); color: #fff; border: none; padding: 12px 22px;
  border-radius: 8px; font-size: 15px; font-weight: 600; cursor: pointer;
  display: flex; align-items: center; gap: 8px; transition: background 0.2s;
}
.btn-primary:hover { background: var(--blue-mid); }
.btn-primary.green { background: var(--green); }
.btn-primary.red { background: var(--red); }

.filters { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.filters input, .filters select {
  padding: 10px 14px; border: 1.5px solid var(--border);
  border-radius: 8px; font-size: 14px; flex: 1; min-width: 140px; background: #fff;
}

/* Tree view */
#rapport-list { display: flex; flex-direction: column; gap: 10px; }
.tree-jaar { margin-bottom: 10px; }
.tree-jaar-header {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; background: var(--blue); color: #fff;
  border-radius: var(--radius); cursor: pointer; user-select: none; font-size: 15px;
}
.tree-jaar-header:hover { background: var(--blue-mid); }
.tree-jaar-body { padding: 6px 0 0 16px; }
.tree-klant { margin-bottom: 6px; }
.tree-klant-header {
  display: flex; align-items: center; gap: 8px; padding: 9px 14px;
  background: var(--blue-light); border: 1px solid var(--border);
  border-radius: var(--radius); cursor: pointer; user-select: none; font-size: 14px; color: var(--blue);
}
.tree-klant-header:hover { background: #b8d4e8; }
.tree-klant-body { padding: 6px 0 0 16px; }
.tree-arrow { font-size: 11px; width: 14px; display: inline-block; }
.tree-icon { font-size: 16px; }
.tree-count { margin-left: auto; font-size: 12px; opacity: 0.75; font-weight: normal; }

/* Rapport kaarten */
.rapport-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 18px;
  display: flex; justify-content: space-between; align-items: center;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06); cursor: pointer;
  transition: box-shadow 0.15s, border-color 0.15s; flex-wrap: wrap; gap: 8px;
}
.rapport-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.1); border-color: var(--blue-mid); }
.rapport-card .rc-info h3 { font-size: 15px; font-weight: 700; color: var(--blue); }
.rapport-card .rc-info p { font-size: 13px; color: var(--muted); margin-top: 2px; }
.badge { padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 700; }
.badge.goed { background: #d4edda; color: #155724; }
.badge.fout { background: #f8d7da; color: #721c24; }
.badge.open { background: #fff3cd; color: #856404; }
.btn-icon {
  border: none; background: none; cursor: pointer;
  padding: 8px; border-radius: 6px; font-size: 18px; transition: background 0.15s;
}
.btn-icon:hover { background: var(--blue-light); }

/* ======= FORMULIER ======= */
#screen-form { padding: 16px; }
.form-topbar {
  display: flex; align-items: center; gap: 14px; margin-bottom: 20px; flex-wrap: wrap;
}
.form-topbar h2 { font-size: 20px; color: var(--blue); flex: 1; }
.btn-back {
  background: none; border: 1.5px solid var(--border);
  padding: 10px 16px; border-radius: 8px; cursor: pointer; font-size: 14px; color: var(--muted);
}

.form-section {
  background: var(--card); border-radius: var(--radius); border: 1px solid var(--border);
  margin-bottom: 16px; overflow: hidden; box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}
.form-section-header {
  background: var(--blue); color: #fff; padding: 12px 18px;
  font-size: 14px; font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase;
}
.form-body { padding: 16px 18px; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }
.form-grid.cols3 { grid-template-columns: 1fr 1fr 1fr; }
.form-grid.cols1 { grid-template-columns: 1fr; }

.field { display: flex; flex-direction: column; gap: 5px; }
.field label {
  font-size: 12px; font-weight: 700; color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.3px;
}
.field input, .field select, .field textarea {
  border: 1.5px solid var(--border); border-radius: 7px; padding: 11px 13px;
  font-size: 15px; outline: none; transition: border-color 0.2s; width: 100%; background: #fff;
}
.field input:focus, .field select:focus { border-color: var(--blue-mid); }
.field textarea { resize: vertical; min-height: 70px; }

.radio-group { display: flex; gap: 8px; flex-wrap: wrap; }
.radio-btn {
  flex: 1; min-width: 60px; padding: 10px 8px; border: 2px solid var(--border);
  border-radius: 7px; text-align: center; cursor: pointer; font-size: 13px; font-weight: 600;
  transition: all 0.15s; user-select: none; background: #fff;
}
.radio-btn.selected-goed  { border-color: var(--green); background: #d4edda; color: var(--green); }
.radio-btn.selected-fout  { border-color: var(--red);   background: #f8d7da; color: var(--red);   }
.radio-btn.selected-nvt   { border-color: var(--muted); background: #e9ecef; color: var(--muted); }
.radio-btn.selected-ja    { border-color: var(--green); background: #d4edda; color: var(--green); }
.radio-btn.selected-nee   { border-color: var(--red);   background: #f8d7da; color: var(--red);   }
.radio-btn.selected-goedgekeurd { border-color: var(--green); background: #d4edda; color: var(--green); }
.radio-btn.selected-afgekeurd   { border-color: var(--red);   background: #f8d7da; color: var(--red);   }

.check-row {
  display: grid; grid-template-columns: 1fr auto; align-items: center;
  gap: 12px; padding: 8px 0; border-bottom: 1px solid #eee;
}
.check-row:last-child { border-bottom: none; }
.check-label { font-size: 14px; font-weight: 500; }

.meting-table { width: 100%; border-collapse: collapse; }
.meting-table th {
  background: var(--blue-light); padding: 8px 6px; font-size: 12px; font-weight: 700;
  color: var(--blue); text-align: center; border: 1px solid var(--border);
}
.meting-table td { border: 1px solid var(--border); padding: 3px; }
.meting-table td:first-child {
  padding: 6px 8px; font-size: 12px; font-weight: 600;
  color: var(--muted); text-align: center; background: #f8f9fa;
}
.meting-table input {
  border: none; width: 100%; padding: 8px 6px;
  text-align: center; font-size: 14px; background: transparent; outline: none;
}
.meting-table input:focus { background: #fff8e8; }

.form-actions { display: flex; gap: 12px; padding: 20px 0; flex-wrap: wrap; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty-state .icon { font-size: 48px; margin-bottom: 12px; }
.empty-state p { font-size: 16px; }

/* ======= TOAST ======= */
#toast {
  position: fixed; bottom: 30px; left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--blue); color: #fff; padding: 12px 24px;
  border-radius: 8px; font-size: 14px; font-weight: 600;
  transition: transform 0.3s; z-index: 999; box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
#toast.show { transform: translateX(-50%) translateY(0); }
#toast.success { background: var(--green); }
#toast.error   { background: var(--red); }