:root{--bg:#f4f7fb;--panel:#fff;--text:#172033;--muted:#6b7280;--primary:#11213d;--accent:#2f6fed;--accent2:#eaf1ff;--line:#dfe6ef;--danger:#c62828;--success:#177245;--warning:#9a6700}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--accent)}.admin-layout{display:flex;min-height:100vh}.sidebar{width:250px;background:var(--primary);color:#fff;padding:26px 20px;position:sticky;top:0;height:100vh}.sidebar h1{font-size:23px;margin:0 0 4px}.sidebar-sub{font-size:12px;color:#aebbd0;text-transform:uppercase;letter-spacing:.12em;margin-bottom:25px}.sidebar nav{display:flex;flex-direction:column;gap:8px}.sidebar a{color:#fff;text-decoration:none;padding:12px 14px;border-radius:10px;font-weight:700}.sidebar a:hover,.sidebar a.active{background:rgba(255,255,255,.12)}.sidebar a.active{background:var(--accent)}.main{flex:1;min-width:0;padding:34px;max-width:1500px}.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:24px}.topbar h2,.main>h2{margin:0 0 6px}.topbar p,.muted{color:var(--muted);margin:0}.eyebrow{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:var(--accent);margin:0 0 8px}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 3px 14px rgba(15,23,42,.035)}.card h3{margin:0 0 10px}.card p:last-child{margin-bottom:0}.metric{font-size:31px;font-weight:800;margin:7px 0}.metric-label{color:var(--muted);font-size:14px}.button,button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:10px 15px;border-radius:10px;border:0;background:var(--accent);color:#fff;text-decoration:none;font-weight:700;cursor:pointer;font:inherit}.button.secondary{background:#fff;color:var(--text);border:1px solid var(--line)}.button.danger{background:var(--danger)}.button.small{min-height:34px;padding:7px 10px;font-size:13px}.actions{display:flex;gap:8px;flex-wrap:wrap}.table-wrap{background:#fff;border-radius:16px;border:1px solid var(--line);overflow:auto}table{width:100%;border-collapse:collapse}th,td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:#f8fafc;color:#475569;font-size:13px}tbody tr:last-child td{border-bottom:0}form{max-width:1000px}.field{margin-bottom:17px}.field label{display:block;margin-bottom:7px;font-weight:700}.field input,.field select,.field textarea{width:100%;min-height:44px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text);font:inherit}.field textarea{min-height:125px;resize:vertical}.field input[type="checkbox"]{width:auto;min-height:auto}.field label:has(input[type="checkbox"]){display:flex;gap:8px;align-items:center}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.form-grid .span-2{grid-column:span 2}.alert{background:#fff2f2;border:1px solid #ffd0d0;color:#9d1c1c;padding:12px 14px;border-radius:10px;margin-bottom:18px}.notice{background:#eef7ff;border:1px solid #cfe6ff;color:#1d4f91;padding:12px 14px;border-radius:10px;margin-bottom:18px}.success{background:#ecfdf3;border:1px solid #b7efca;color:#166534;padding:12px 14px;border-radius:10px;margin-bottom:18px}.badge{display:inline-flex;padding:5px 9px;border-radius:999px;font-size:12px;font-weight:800;background:#edf2f7;color:#475569}.badge-actief,.badge-betaald,.badge-verzonden,.badge-afgehandeld{background:#e8f7ee;color:#17643b}.badge-demo,.badge-concept,.badge-nieuw,.badge-open{background:#fff4d6;color:#805d00}.badge-geblokkeerd,.badge-vervallen,.badge-geannuleerd{background:#fdecec;color:#a32323}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 20px}.tabs a{background:#fff;border:1px solid var(--line);padding:9px 12px;border-radius:9px;text-decoration:none;color:var(--text);font-weight:700}.tabs a.active{background:var(--accent2);border-color:#bcd0ff;color:#1e4fb8}.section-title{margin:30px 0 12px}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:430px;background:#fff;border-radius:16px;padding:30px;border:1px solid var(--line)}.inline-form{display:inline}.customer-header{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:18px}.customer-title h2{margin:0 0 5px}.empty{padding:28px;text-align:center;color:var(--muted)}@media(max-width:850px){.admin-layout{display:block}.sidebar{width:100%;height:auto;position:static}.sidebar nav{display:grid;grid-template-columns:repeat(2,1fr)}.main{padding:22px}.topbar,.customer-header{flex-direction:column}.form-grid{grid-template-columns:1fr}.form-grid .span-2{grid-column:span 1}}