:root{--ink:#0F1218;--cyan:#00b8cc;--cyan-light:#e0f7fa;--white:#fff;--gray-500:#5B6573;--gray-100:#F2F4F7;--red:#e53935;--green:#43a047}
*{box-sizing:border-box;margin:0;padding:0}
body{font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,system-ui,sans-serif;color:var(--ink);background:var(--gray-100);min-height:100vh}

.app{max-width:1200px;margin:0 auto;padding:24px}

.header{background:var(--ink);color:var(--white);border-radius:16px;padding:32px;margin-bottom:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.header h1{font-size:28px;font-weight:700}
.stats{display:flex;gap:20px;font-size:14px;color:#9aa3b2}
.stats b{color:var(--cyan);font-size:18px}

.toolbar{display:flex;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.search{flex:1;min-width:200px;padding:10px 16px;border:2px solid #ddd;border-radius:8px;font-size:15px;background:var(--white)}
.search:focus{outline:none;border-color:var(--cyan)}

.btn{padding:10px 20px;border-radius:8px;font-weight:600;font-size:14px;cursor:pointer;border:none}
.btn-primary{background:var(--cyan);color:var(--white)}
.btn-primary:hover{background:#0099ab}
.btn-outline{background:var(--white);color:var(--ink);border:2px solid #ddd}
.btn-outline:hover{border-color:var(--cyan)}

.table-wrap{background:var(--white);border-radius:16px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.06)}
table{width:border-collapse:collapse;width:100%}
th{background:var(--ink);color:var(--white);padding:14px 12px;text-align:left;font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}
td{padding:12px;border-bottom:1px solid var(--gray-100);font-size:14px;vertical-align:middle}
tr:hover td{background:var(--cyan-light)}

.actions{display:flex;gap:6px;white-space:nowrap}
.btn-sm{padding:6px 12px;font-size:12px;border-radius:6px;cursor:pointer;border:none}
.btn-edit{background:#fff3e0;color:#e65100}
.btn-del{background:#ffebee;color:var(--red)}

.empty{text-align:center;padding:60px 20px;color:var(--gray-500);font-size:18px;background:var(--white);border-radius:16px}

.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}
.modal{background:var(--white);border-radius:16px;padding:32px;width:100%;max-width:520px;max-height:90vh;overflow-y:auto}
.modal h2{margin-bottom:24px;font-size:22px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;margin-bottom:6px;font-size:13px;color:var(--gray-500)}
.field input{width:100%;padding:10px 14px;border:2px solid #ddd;border-radius:8px;font-size:15px}
.field input:focus{outline:none;border-color:var(--cyan)}
.form-actions{display:flex;gap:12px;margin-top:24px}

.field input[type="file"]{margin-top:6px;padding:8px 0;font-size:13px;color:var(--gray-500)}
.file-preview{margin-top:4px;min-height:20px}
.attached{display:inline-block;background:var(--cyan-light);color:var(--ink);padding:4px 10px;border-radius:6px;font-size:12px;margin-top:4px}
.file-link{display:inline-block;color:var(--cyan);font-size:12px;text-decoration:none;margin-top:4px}
.file-link:hover{text-decoration:underline}

.row-complete{background:#fffde7}
.badge{display:inline-block;padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600}
.badge-paid{background:#e8f5e9;color:#2e7d32}
.badge-pending{background:#fff3e0;color:#e65100}
.badge-unpaid{background:#ffebee;color:#c62828}

@media(max-width:640px){
  .header{flex-direction:column;text-align:center}
  .toolbar{flex-direction:column }
  .search{width:100%}
  table{font-size:13px;display:block;overflow-x:auto}
}