/* DataPartner365 Opdrachten. Same visual language as /data-opdrachten/ on datapartner365.nl:
   blue #3B82F6, dark text #1B2232, greys #6B7280/#9CA3AF, border-only cards, pill badges. */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { background: #F8F9FA; }
body { background: #F8F9FA; color: #1B2232; font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; min-height: 100vh; display: flex; flex-direction: column; -webkit-font-smoothing: antialiased; line-height: 1.5; }
a { color: #3B82F6; text-decoration: none; }
a:hover { text-decoration: underline; }
main { flex: 1; }

/* nav + footer: dark, calm */
.nav { background: #1B2232; color: #fff; }
.nav-inner { max-width: 1080px; margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { color: #fff; font-weight: 600; font-size: 16px; display: flex; align-items: center; gap: 8px; }
.brand i { color: #3B82F6; }
.brand:hover { text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; font-size: 14px; }
.nav-links a { color: #D1D5DB; }
.nav-links a:hover { color: #fff; text-decoration: none; }
.nav-links form { display: inline; }
.link-btn { background: none; border: none; color: #D1D5DB; font: inherit; cursor: pointer; padding: 0; }
.link-btn:hover { color: #fff; }
.nav-user { color: #9CA3AF; font-size: 13px; }
.footer { background: #1B2232; color: #9CA3AF; font-size: 13px; margin-top: 48px; }
.footer-inner { max-width: 1080px; margin: 0 auto; padding: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer a { color: #D1D5DB; }

/* layout */
.hero { max-width: 720px; margin: 0 auto; padding: 40px 24px 28px; text-align: center; }
.hero h1 { font-size: 26px; font-weight: 500; margin-bottom: 8px; }
.hero p { font-size: 15px; color: #6B7280; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 560px; margin: 0 auto; padding: 0 24px; }
.medium { max-width: 820px; margin: 0 auto; padding: 0 24px; }
.page-title { font-size: 22px; font-weight: 500; margin: 32px 0 16px; }
.split { display: grid; grid-template-columns: 1fr 380px; gap: 24px; align-items: start; }

/* cards */
.card { background: #FFFFFF; border: 1px solid rgba(0,0,0,0.07); border-radius: 12px; padding: 24px; margin-bottom: 16px; }
.card-title { font-size: 15px; font-weight: 600; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.card-title i { color: #3B82F6; }
.muted { color: #6B7280; font-size: 14px; }
.small { font-size: 12px; color: #9CA3AF; }
.text { font-size: 14px; color: #374151; white-space: pre-line; }

/* opdracht list */
.opdracht-card { display: block; background: #fff; border: 1px solid rgba(0,0,0,0.07); border-radius: 12px; padding: 18px 20px; margin-bottom: 12px; color: inherit; transition: border-color .15s; }
.opdracht-card:hover { border-color: rgba(59,130,246,0.45); text-decoration: none; }
.opdracht-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.meta { display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; color: #6B7280; margin-top: 8px; }
.meta i { color: #9CA3AF; margin-right: 4px; }
.pills { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }

/* pills / badges */
.pill { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; background: #DBEAFE; color: #2563EB; }
.pill-grey { background: #F3F4F6; color: #6B7280; }
.pill-green { background: #DCFCE7; color: #16A34A; }
.pill-amber { background: #FEF3C7; color: #B45309; }
.pill-red { background: #FEE2E2; color: #DC2626; }
.pill-free { background: #DCFCE7; color: #16A34A; font-size: 13px; padding: 3px 12px; }

/* filters */
.filters { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr auto; gap: 10px; background: #fff; border: 1px solid rgba(0,0,0,0.07); border-radius: 12px; padding: 14px; margin-bottom: 18px; }

/* forms */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 12px; font-weight: 600; color: #6B7280; margin-bottom: 6px; }
.form-input, .form-select, .form-textarea { width: 100%; background: #F8F9FA; border: 1px solid rgba(0,0,0,0.1); border-radius: 8px; padding: 10px 14px; color: #1B2232; font-size: 14px; font-family: inherit; outline: none; transition: border-color .15s; }
.form-input::placeholder, .form-textarea::placeholder { color: #9CA3AF; }
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: rgba(59,130,246,0.5); }
.form-textarea { resize: vertical; min-height: 110px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field-error { font-size: 12px; color: #DC2626; margin-top: 4px; }
.has-error .form-input, .has-error .form-select, .has-error .form-textarea { border-color: rgba(220,38,38,0.5); }
.checkbox-group { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 10px; }
.checkbox-group input[type="checkbox"] { margin-top: 3px; accent-color: #3B82F6; flex-shrink: 0; }
.checkbox-group label { font-size: 13px; color: #6B7280; line-height: 1.5; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: #3B82F6; color: #fff; border: none; border-radius: 8px; padding: 11px 18px; font-size: 14px; font-weight: 600; cursor: pointer; font-family: inherit; transition: background .15s; }
.btn:hover { background: #2563EB; text-decoration: none; }
.btn-block { width: 100%; padding: 13px; font-size: 15px; }
.btn-light { background: #fff; color: #1B2232; border: 1px solid rgba(0,0,0,0.12); }
.btn-light:hover { background: #F3F4F6; }
.btn-danger { background: #DC2626; }
.btn-danger:hover { background: #B91C1C; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.actions form { display: inline; }

/* messages */
.alert { border-radius: 8px; padding: 12px 14px; font-size: 14px; margin: 16px 0; }
.alert-ok { background: rgba(22,163,74,0.08); border: 1px solid rgba(22,163,74,0.3); color: #15803D; }
.alert-error { background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.3); color: #DC2626; }
.alert-info { background: rgba(59,130,246,0.08); border: 1px solid rgba(59,130,246,0.25); color: #1D4ED8; }

/* empty state */
.empty { text-align: center; padding: 48px 24px; background: #fff; border: 1px dashed rgba(0,0,0,0.12); border-radius: 12px; }
.empty i { font-size: 32px; color: #9CA3AF; margin-bottom: 12px; display: block; }
.empty h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }

/* tables (beheer) */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.tab { padding: 6px 14px; border-radius: 999px; border: 1px solid rgba(0,0,0,0.1); font-size: 13px; color: #6B7280; background: #fff; }
.tab.active { background: rgba(59,130,246,0.12); border-color: rgba(59,130,246,0.3); color: #2563EB; font-weight: 600; }
.tab:hover { text-decoration: none; color: #1B2232; }
.table-wrap { overflow-x: auto; background: #fff; border: 1px solid rgba(0,0,0,0.07); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; font-weight: 600; color: #6B7280; padding: 10px 12px; border-bottom: 1px solid rgba(0,0,0,0.07); white-space: nowrap; }
td { padding: 10px 12px; border-bottom: 1px solid rgba(0,0,0,0.05); vertical-align: top; }
tr:last-child td { border-bottom: none; }
.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-bottom: 16px; }
.stat { background: #fff; border: 1px solid rgba(0,0,0,0.07); border-radius: 12px; padding: 14px; }
.stat b { display: block; font-size: 20px; font-weight: 600; }
.stat span { font-size: 12px; color: #6B7280; }

@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; }
  .filters { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .wrap, .narrow, .medium { padding: 0 16px; }
  .form-row, .filters { grid-template-columns: 1fr; }
  .hero { padding: 28px 16px 20px; }
}