:root {
  --color-bg: #f4f6f9;
  --color-surface: #ffffff;
  --color-border: #e2e6ec;
  --color-text: #1f2430;
  --color-text-muted: #6b7280;
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-green: #16a34a;
  --color-red: #dc2626;
  --color-orange: #d97706;
  --color-gray: #6b7280;
  --color-blue: #2563eb;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  font-size: 15px;
}

* { box-sizing: border-box; }

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

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  background: #151b2b;
  color: #cbd3e1;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.sidebar-brand {
  padding: 22px 20px;
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  letter-spacing: 0.02em;
}
.sidebar-nav { display: flex; flex-direction: column; gap: 2px; padding: 8px; flex: 1; }
.sidebar-nav a {
  color: #cbd3e1;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.95rem;
}
.sidebar-nav a:hover { background: rgba(255,255,255,0.08); text-decoration: none; }
.sidebar-nav a.active { background: var(--color-primary); color: #fff; }
.sidebar-footer { padding: 16px 20px; border-top: 1px solid rgba(255,255,255,0.08); }
.sidebar-user { font-size: 0.85rem; color: #8b93a7; margin-bottom: 6px; }
.sidebar-logout { font-size: 0.85rem; color: #f87171; }

.main-content { flex: 1; padding: 28px 36px; max-width: 1200px; }
.main-content.full {
  max-width: none;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

h1 { font-size: 1.5rem; margin: 0 0 4px; }
h2 { font-size: 1.15rem; margin: 0 0 14px; }
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 10px;
}
.text-muted { color: var(--color-text-muted); }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
}

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.stat-card .stat-label { font-size: 0.82rem; color: var(--color-text-muted); margin-bottom: 6px; }
.stat-card .stat-value { font-size: 1.6rem; font-weight: 700; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--color-border); font-size: 0.92rem; }
th { color: var(--color-text-muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }
tbody tr:hover { background: #fafbfc; }
.table-wrap { overflow-x: auto; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: #f3f4f6; text-decoration: none; }
.btn-primary { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-danger { color: var(--color-red); border-color: #fca5a5; }
.btn-danger:hover { background: #fef2f2; }
.btn-sm { padding: 5px 10px; font-size: 0.82rem; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; }
.badge-gray { background: #f1f2f4; color: #4b5563; }
.badge-blue { background: #dbeafe; color: #1d4ed8; }
.badge-green { background: #dcfce7; color: #15803d; }
.badge-red { background: #fee2e2; color: #b91c1c; }
.badge-orange { background: #fef3c7; color: #b45309; }

form .form-row { margin-bottom: 16px; }
form label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 5px; color: #374151; }
form .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
input[type=text], input[type=email], input[type=tel], input[type=password],
input[type=number], input[type=date], textarea, select {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.92rem;
  font-family: inherit;
  background: #fff;
  color: var(--color-text);
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.15); }
textarea { resize: vertical; min-height: 80px; }
.form-actions { display: flex; gap: 10px; margin-top: 20px; }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; font-size: 0.92rem; }
.alert-success { background: #dcfce7; color: #15803d; }
.alert-error { background: #fee2e2; color: #b91c1c; }

.login-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px;
  width: 100%;
  max-width: 360px;
}
.login-box h1 { text-align: center; margin-bottom: 4px; }
.login-box .text-muted { display: block; text-align: center; margin-bottom: 24px; }

.quote-items-table input { padding: 6px 8px; font-size: 0.88rem; }
.quote-items-table td { vertical-align: top; }
.price-compare { font-size: 0.8rem; margin-top: 2px; }
.price-up { color: var(--color-red); }
.price-down { color: var(--color-green); }
.old-price { text-decoration: line-through; color: var(--color-text-muted); font-size: 0.85rem; }

.totals-box { max-width: 320px; margin-left: auto; margin-top: 16px; }
.totals-box .totals-row { display: flex; justify-content: space-between; padding: 6px 0; font-size: 0.92rem; }
.totals-box .totals-row.grand { font-weight: 700; font-size: 1.1rem; border-top: 1px solid var(--color-border); margin-top: 6px; padding-top: 10px; }

/* Publieke offertepagina */
.public-page { background: var(--color-bg); min-height: 100vh; padding: 40px 20px; }
.public-wrap { max-width: 820px; margin: 0 auto; }
.public-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 28px; flex-wrap: wrap; gap: 16px; }
.public-header .logo { max-height: 60px; }
.accept-box { text-align: center; padding: 24px; }
.accept-box .btn { padding: 12px 28px; font-size: 1rem; }

@media (max-width: 760px) {
  .app-shell { flex-direction: column; }
  .sidebar { width: 100%; }
  .main-content { padding: 18px; }
  form .form-grid { grid-template-columns: 1fr; }
}