@import url(https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap);:root{--primary:#2563eb;--primary-hover:#1d4ed8;--secondary:#64748b;--bg-color:#f1f5f9;--surface:#fff;--text-main:#0f172a;--text-muted:#64748b;--border:#e2e8f0;--danger:#ef4444;--danger-hover:#dc2626;--success:#10b981;--warning:#f59e0b;--radius:8px;--shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:'Inter',sans-serif;background-color:var(--bg-color);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased}.app-container{display:flex;min-height:100vh;flex-direction:column}.main-header{background:var(--surface);border-bottom:1px solid var(--border);padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:10;box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1)}.brand{font-size:1.25rem;font-weight:700;color:var(--primary);text-decoration:none;display:flex;align-items:center;gap:.5rem}.nav-links{display:flex;gap:1.5rem;align-items:center}.nav-links a{color:var(--text-main);text-decoration:none;font-weight:500;font-size:.95rem;transition:color .2s}.nav-links a:hover{color:var(--primary)}.content-wrapper{flex:1;padding:2.5rem 1.5rem;max-width:1200px;margin:0 auto;width:100%}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.5rem;margin-bottom:1.5rem;border:1px solid rgba(0,0,0,.05)}.card-header{border-bottom:1px solid var(--border);padding-bottom:1rem;margin-bottom:1.25rem;display:flex;justify-content:space-between;align-items:center}.card-title{font-size:1.25rem;font-weight:600;color:var(--text-main)}.form-group{margin-bottom:1.25rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500;font-size:.9rem;color:var(--text-main)}.form-control,.form-select{width:100%;padding:.75rem 1rem;border:1px solid var(--border);border-radius:var(--radius);font-family:inherit;font-size:.95rem;transition:all .2s;background-color:#fff}.form-control:focus,.form-select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}.form-control[readonly]{background-color:#f8fafc;color:var(--text-muted)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.625rem 1.25rem;border-radius:var(--radius);font-weight:500;font-size:.95rem;cursor:pointer;border:none;transition:all .2s;text-decoration:none;gap:.5rem}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover)}.btn-secondary{background:var(--surface);color:var(--text-main);border:1px solid var(--border)}.btn-secondary:hover{background:#f8fafc}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-main)}.btn-outline:hover{background:#f8fafc}.pagination .btn{padding:.4rem .8rem;font-size:.85rem;min-width:2.5rem}.table-responsive{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border)}table{width:100%;border-collapse:collapse}th,td{padding:1rem;text-align:left;border-bottom:1px solid var(--border);font-size:.95rem}th{font-weight:600;color:var(--secondary);background:#f8fafc;text-transform:uppercase;font-size:.75rem;letter-spacing:.05em}tr:last-child td{border-bottom:none}tr:hover td{background-color:#f8fafc}.grid{display:grid;gap:1.5rem}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.grid-5{grid-template-columns:repeat(5,1fr)}@media (max-width:768px){.main-header{flex-direction:column;padding:1rem;gap:1rem}.nav-links{gap:1rem;font-size:.85rem;flex-wrap:wrap;justify-content:center}.content-wrapper{padding:1rem .5rem}.grid-2,.grid-3,.grid-4,.grid-5{grid-template-columns:1fr}.card{padding:1rem}.card-header{flex-direction:column;align-items:flex-start;gap:.75rem}.card-header .btn{width:100%}#qsoForm{padding:1rem}#callsign{font-size:1.25rem!important}.btn{width:100%}th,td{padding:.75rem .5rem;font-size:.85rem}}.text-center{text-align:center}.mb-1{margin-bottom:.25rem}.mb-2{margin-bottom:.5rem}.mb-3{margin-bottom:1rem}.mb-4{margin-bottom:1.5rem}.mt-3{margin-top:1rem}.mt-4{margin-top:1.5rem}.flex{display:flex}.gap-2{gap:.5rem}.gap-4{gap:1rem}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-end{justify-content:flex-end}.text-muted{color:var(--text-muted)}.text-danger{color:var(--danger)!important}.text-success{color:var(--success)!important}.alert{padding:1rem;border-radius:var(--radius);margin-bottom:1.5rem;font-size:.95rem}.alert-error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.alert-success{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}.badge{display:inline-block;padding:.25rem .6rem;border-radius:9999px;font-size:.75rem;font-weight:600;background:#e2e8f0;color:#475569}.badge.primary{background:#dbeafe;color:#1e40af}.badge.success{background:#d1fae5;color:#065f46}.badge.warning{background:#fef3c7;color:#92400e}