:root{--teal:#22bea8;--teal-dark:#1aa391;--ink:#313232;--bg:#f4f5f6;--card:#ffffff;--border:#e5e7eb;--muted:#6b7280;--text:#1f2937;--danger:#dc2626;--ok:#16a34a;--radius:12px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:15px;line-height:1.5}a{color:var(--teal-dark)}.header{background:var(--ink);color:#fff;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.brand{font-size:18px;font-weight:600}.brand .accent{color:var(--teal)}.header .user{font-size:14px;color:#cbd5e1;display:flex;align-items:center;gap:12px;flex-wrap:wrap}.container{max-width:960px;margin:0 auto;padding:24px 16px}.center-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.card.narrow{width:100%;max-width:420px}h1{font-size:22px;margin:0 0 4px}h1,h2{color:var(--ink)}h2{font-size:17px;margin:24px 0 12px}.sub{color:var(--muted);margin:0 0 20px;font-size:14px}label{display:block;font-size:13px;font-weight:600;margin:14px 0 6px;color:var(--ink)}input[type=email],input[type=password],input[type=search],input[type=text]{width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:8px;font-size:15px;background:#fff}input:focus{outline:2px solid var(--teal);border-color:var(--teal)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--teal);color:#fff;border:none;padding:11px 16px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;width:100%}.btn:hover{background:var(--teal-dark)}.btn:disabled{opacity:.6;cursor:default}.btn.secondary{background:#fff;color:var(--ink);border:1px solid var(--border)}.btn.secondary:hover{background:#f9fafb}.btn.sm{width:auto;padding:7px 12px;font-size:13px}.btn.link{background:none;color:var(--teal-dark);width:auto;padding:4px;text-decoration:underline}.btn.danger{background:var(--danger)}.msg{padding:10px 12px;border-radius:8px;font-size:14px;margin:12px 0}.msg.info{background:#f0fdfa;border:1px solid #99f6e4;color:#0f766e}.msg.error{background:#fef2f2;border:1px solid #fecaca;color:var(--danger)}.msg.ok{background:#f0fdf4;border:1px solid #bbf7d0;color:var(--ok)}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:16px}.tab{padding:10px 16px;cursor:pointer;background:none;font-size:15px;color:var(--muted);border:none;border-bottom:2px solid transparent}.tab.active{color:var(--ink);border-bottom-color:var(--teal);font-weight:600}table{width:100%;border-collapse:collapse;font-size:14px}td,th{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.03em}td.num,th.num{text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600}.badge.paid{background:#dcfce7;color:#166534}.badge.unpaid{background:#fef9c3;color:#854d0e}.badge.credit{background:#ede9fe;color:#5b21b6}.badge.off{background:#f3f4f6;color:#6b7280}.toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:12px}select{padding:9px 10px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:#fff}.empty{padding:32px}.empty,.placeholder{color:var(--muted);text-align:center}.placeholder{padding:40px;border:1px dashed var(--border);border-radius:var(--radius)}.chip{display:inline-flex;align-items:center;gap:6px;background:#f0fdfa;border:1px solid #99f6e4;color:#0f766e;border-radius:999px;padding:3px 10px;font-size:13px;margin:2px}.chip button{background:none;border:none;color:#0f766e;cursor:pointer;font-weight:700}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.spacer{flex:1 1}.muted{color:var(--muted);font-size:13px}.checklist{max-height:220px;overflow:auto;border:1px solid var(--border);border-radius:8px;padding:6px}.checklist label{display:flex;align-items:center;gap:8px;font-weight:400;margin:2px 0;cursor:pointer}.checklist input{width:auto}