:root{--primary: #2563eb;--primary-hover: #1d4ed8;--surface: #f8fafc;--border: #e2e8f0;--text: #1e293b;--text-muted: #64748b;--error: #dc2626}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.5;color:var(--text);background:var(--surface)}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:960px;margin:0 auto;padding:0 1rem}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;font-size:.875rem;font-weight:500;border-radius:.375rem;border:none;cursor:pointer;transition:background .15s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{background:#fff;color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:#f1f5f9}.btn-danger{background:var(--error);color:#fff}.btn-danger:hover{background:#b91c1c}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.25rem;font-weight:500;color:var(--text)}.form-group input,.form-group textarea{width:100%;padding:.5rem .75rem;font-size:1rem;border:1px solid var(--border);border-radius:.375rem}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb26}.form-group .error{margin-top:.25rem;font-size:.875rem;color:var(--error)}.card{background:#fff;border-radius:.5rem;box-shadow:0 1px 3px #00000014;padding:1.5rem;margin-bottom:1rem}table{width:100%;border-collapse:collapse}th,td{padding:.75rem;text-align:left;border-bottom:1px solid var(--border)}th{font-weight:600;color:var(--text-muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.05em}tr:hover td{background:#f8fafc}