/* ── Reset & base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --c-bg: #f4f6f9;
  --c-surface: #ffffff;
  --c-border: #dde1e8;
  --c-primary: #2563eb;
  --c-primary-dark: #1d4ed8;
  --c-danger: #dc2626;
  --c-danger-light: #fee2e2;
  --c-success: #16a34a;
  --c-success-light: #dcfce7;
  --c-warning: #d97706;
  --c-warning-light: #fef3c7;
  --c-text: #1e293b;
  --c-text-muted: #64748b;
  --c-red-bar: #dc2626;
  --c-green-bar: #16a34a;
  --c-blue-bar: #2563eb;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.1);
}

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.5;
}

/* ── Nav ──────────────────────────────────────────────────────────────────── */
.topnav {
  background: var(--c-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}
.logo { font-size: 1.1rem; font-weight: 700; }
.nav-links { display: flex; gap: 4px; }
.nav-btn {
  background: transparent;
  border: none;
  color: rgba(255,255,255,.75);
  padding: 8px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: .9rem;
  font-weight: 500;
  transition: background .15s, color .15s;
}
.nav-btn:hover { background: rgba(255,255,255,.15); color: #fff; }
.nav-btn.active { background: rgba(255,255,255,.2); color: #fff; }

/* ── Layout ───────────────────────────────────────────────────────────────── */
#app { max-width: 1200px; margin: 0 auto; padding: 24px 20px; }

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.page-title { font-size: 1.4rem; font-weight: 700; }

/* ── Cards ────────────────────────────────────────────────────────────────── */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 12px;
}

/* ── Dashboard summary cards ──────────────────────────────────────────────── */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.stat-label { font-size: .8rem; font-weight: 600; color: var(--c-text-muted); text-transform: uppercase; letter-spacing: .04em; }
.stat-value { font-size: 1.7rem; font-weight: 700; margin-top: 4px; }
.stat-value.over-budget { color: var(--c-danger); }
.stat-value.ok { color: var(--c-success); }

/* ── Progress bar ─────────────────────────────────────────────────────────── */
.progress-wrap { margin-bottom: 24px; }
.progress-label { display: flex; justify-content: space-between; font-size: .85rem; color: var(--c-text-muted); margin-bottom: 6px; }
.progress-bar-outer {
  height: 22px;
  background: #e2e8f0;
  border-radius: 99px;
  overflow: hidden;
}
.progress-bar-inner {
  height: 100%;
  border-radius: 99px;
  background: var(--c-green-bar);
  transition: width .4s ease;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 8px;
  font-size: .75rem;
  font-weight: 700;
  color: #fff;
  min-width: 40px;
}
.progress-bar-inner.over { background: var(--c-red-bar); }
.progress-bar-inner.warning { background: var(--c-warning); }

/* ── Breakdown tables ─────────────────────────────────────────────────────── */
.breakdown-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}
@media (max-width: 700px) { .breakdown-grid { grid-template-columns: 1fr; } }

.breakdown-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.breakdown-table th { text-align: left; padding: 8px 10px; color: var(--c-text-muted); font-weight: 600; font-size: .8rem; border-bottom: 2px solid var(--c-border); }
.breakdown-table td { padding: 8px 10px; border-bottom: 1px solid var(--c-border); }
.breakdown-table tr:last-child td { border-bottom: none; }
.text-right { text-align: right; }
.text-danger { color: var(--c-danger); font-weight: 600; }
.text-muted { color: var(--c-text-muted); }

/* ── Empty state ──────────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--c-text-muted);
}
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 12px; }
.empty-state h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--c-text); }
.empty-state p { font-size: .9rem; margin-bottom: 20px; }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-size: .9rem;
  font-weight: 600;
  transition: background .15s, opacity .15s;
}
.btn-primary { background: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-dark); }
.btn-danger { background: var(--c-danger); color: #fff; }
.btn-danger:hover { opacity: .85; }
.btn-secondary { background: #e2e8f0; color: var(--c-text); }
.btn-secondary:hover { background: #cbd5e1; }
.btn-ghost { background: transparent; color: var(--c-primary); border: 1px solid var(--c-primary); }
.btn-ghost:hover { background: #eff6ff; }
.btn-sm { padding: 4px 10px; font-size: .8rem; }
.btn-icon { padding: 4px 8px; font-size: 1rem; background: transparent; border: none; cursor: pointer; color: var(--c-text-muted); }
.btn-icon:hover { color: var(--c-text); }

/* ── Table (general) ──────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table.data-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.data-table th { text-align: left; padding: 10px 12px; background: var(--c-bg); color: var(--c-text-muted); font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; border-bottom: 2px solid var(--c-border); }
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--c-border); vertical-align: middle; }
.data-table tbody tr:hover { background: #f8fafc; }
.data-table tbody tr:last-child td { border-bottom: none; }

/* ── Badge ────────────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: .75rem;
  font-weight: 600;
}
.badge-green { background: var(--c-success-light); color: var(--c-success); }
.badge-red { background: var(--c-danger-light); color: var(--c-danger); }
.badge-yellow { background: var(--c-warning-light); color: var(--c-warning); }
.badge-blue { background: #dbeafe; color: var(--c-primary); }
.badge-gray { background: #f1f5f9; color: var(--c-text-muted); }

/* ── Forms ────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 5px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  font-size: .9rem;
  background: #fff;
  color: var(--c-text);
  transition: border-color .15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--c-border); }

/* ── Modal ────────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.modal-overlay.hidden { display: none; }
.modal-box {
  background: var(--c-surface);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
}
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  background: none;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  color: var(--c-text-muted);
  padding: 4px 8px;
  border-radius: 4px;
}
.modal-close:hover { background: var(--c-bg); }
.modal-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 20px; }

/* ── Accordion (deelonderdeel detail) ────────────────────────────────────── */
.accordion { border: 1px solid var(--c-border); border-radius: var(--radius); margin-bottom: 12px; background: var(--c-surface); overflow: hidden; }
.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  cursor: pointer;
  background: var(--c-surface);
  user-select: none;
}
.accordion-header:hover { background: #f8fafc; }
.accordion-left { display: flex; align-items: center; gap: 12px; }
.accordion-title { font-weight: 600; }
.accordion-meta { font-size: .8rem; color: var(--c-text-muted); }
.accordion-right { display: flex; align-items: center; gap: 8px; }
.accordion-chevron { transition: transform .2s; font-style: normal; color: var(--c-text-muted); }
.accordion.open .accordion-chevron { transform: rotate(90deg); }
.accordion-body { padding: 0 16px 16px; border-top: 1px solid var(--c-border); }
.accordion-body-inner { padding-top: 14px; }

/* ── Section within accordion ─────────────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 16px 0 10px;
}
.section-title { font-size: .85rem; font-weight: 700; text-transform: uppercase; color: var(--c-text-muted); letter-spacing: .05em; }

/* ── Confirm dialog ───────────────────────────────────────────────────────── */
.confirm-text { margin-bottom: 20px; line-height: 1.6; }

/* ── Toast ────────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%);
  background: #1e293b;
  color: #fff;
  padding: 12px 24px;
  border-radius: 99px;
  font-size: .9rem;
  z-index: 2000;
  box-shadow: 0 4px 20px rgba(0,0,0,.2);
  transition: opacity .3s;
}
.toast.hidden { display: none; }
.toast.error { background: var(--c-danger); }

/* ── Beheer ───────────────────────────────────────────────────────────────── */
.beheer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 700px) { .beheer-grid { grid-template-columns: 1fr; } }
.beheer-list { list-style: none; margin-top: 12px; }
.beheer-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--c-border);
  font-size: .9rem;
}
.beheer-item:last-child { border-bottom: none; }
.beheer-item-actions { display: flex; gap: 4px; }

/* ── Budget status ────────────────────────────────────────────────────────── */
.no-budget { color: var(--c-text-muted); font-style: italic; }