:root{--primary: #0b5cab;--primary-dark: #08417a;--bg: #f4f6f9;--card-bg: #ffffff;--border: #e2e8f0;--text: #1f2933;--muted: #6b7280;--success: #1a7f37;--danger: #c0392b;--radius: 10px}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}h1,h2,h3{color:var(--primary-dark);margin-top:0}.page-center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:24px 28px;box-shadow:0 1px 3px #0000000f;margin-bottom:20px}.form-card{width:100%;max-width:620px}section{border-top:1px solid var(--border);padding-top:16px;margin-top:16px}section:first-of-type{border-top:none;margin-top:0;padding-top:0}label{display:block;font-weight:600;font-size:13px;margin:10px 0 4px;color:#374151}input[type=text],input[type=email],input[type=number],input[type=password],input[type=file],select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:#fff;color:var(--text)}input:disabled{background:#f1f5f9;color:#6b7280}.radio-label,.checkbox-label{font-weight:400;display:inline-flex;align-items:center;gap:6px;margin-right:16px}.radio-label input,.checkbox-label input{width:auto}button{background:var(--primary);color:#fff;border:none;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;margin-top:16px}button:hover{background:var(--primary-dark)}button:disabled{background:#9aa5b1;cursor:not-allowed}button.secondary{background:#fff;color:var(--primary);border:1px solid var(--primary)}button.secondary:hover{background:#eef4fb}.button-link{background:var(--primary);color:#fff;padding:10px 16px;border-radius:8px;text-decoration:none;font-weight:600;font-size:14px}.row{display:flex;flex-wrap:wrap;gap:8px}.error-text{color:var(--danger);font-size:13px;margin:8px 0}.muted{color:var(--muted)}.small{font-size:12px}.dashboard{max-width:1200px;margin:0 auto;padding:24px}.dashboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.stats-row{display:flex;gap:16px;margin-bottom:20px}.stat-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px 24px;flex:1;text-align:center}.stat-num{display:block;font-size:28px;font-weight:700;color:var(--primary-dark)}.stat-label{color:var(--muted);font-size:13px}.table-wrap{overflow-x:auto;margin-top:12px}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:top}th{background:#f8fafc;color:#374151}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}.badge-pending{background:#fef3c7;color:#92400e}.badge-sent{background:#dbeafe;color:#1e40af}.badge-opened{background:#ede9fe;color:#5b21b6}.badge-submitted{background:#d1fae5;color:#065f46}.upload-result{margin-top:12px;font-size:13px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a80;display:flex;align-items:center;justify-content:center;padding:20px;z-index:50}.modal-card{background:#fff;border-radius:var(--radius);padding:24px 28px;max-width:520px;width:100%;max-height:85vh;overflow-y:auto}.detail-table td{padding:6px 8px}.detail-table td:first-child{color:var(--muted);width:45%}