.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:1rem;font-weight:500;line-height:1.25;border:1px solid transparent;border-radius:.25rem;cursor:pointer;transition:all .25s ease-in-out;text-decoration:none}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover:not(:disabled){background-color:#0b5ed7;transform:translateY(-1px);box-shadow:0 1px 2px #0000000d}.btn-success{background-color:var(--success-color);color:#fff}.btn-success:hover:not(:disabled){background-color:#157347;transform:translateY(-1px);box-shadow:0 1px 2px #0000000d}.btn-danger{background-color:#dc3545;color:#fff}.btn-danger:hover:not(:disabled){background-color:#bb2d3b;transform:translateY(-1px);box-shadow:0 1px 2px #0000000d}.btn-outline{background-color:transparent;color:var(--primary-color);border-color:var(--primary-color)}.btn-outline:hover:not(:disabled){background-color:var(--primary-color);color:#fff;transform:translateY(-1px);box-shadow:0 1px 2px #0000000d}.btn-ghost{background-color:transparent;color:var(--text-color)}.btn-ghost:hover:not(:disabled){background-color:var(--border-color)}.btn-sm{padding:.5rem 1rem;font-size:.875rem}.btn-lg{padding:1rem 2rem;font-size:1.125rem}.card{background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:.5rem;padding:1.5rem;box-shadow:0 1px 2px #0000000d;transition:all .25s ease-in-out}.card-hover:hover{box-shadow:0 4px 16px #0000001a;transform:translateY(-2px)}.card-header{margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.card-body{margin-bottom:1rem}.card-footer{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border-color)}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.5rem;font-size:.875rem;font-weight:500;color:var(--text-color)}.form-input,.form-select{width:100%;padding:.75rem 1rem;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:1rem;color:var(--text-color);background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:.25rem;transition:border-color .15s ease-in-out,box-shadow .15s ease-in-out}.form-input:focus,.form-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #e7f1ff}.form-input::placeholder,.form-select::placeholder{color:var(--text-light)}.form-input:disabled,.form-select:disabled{opacity:.6;cursor:not-allowed;background-color:var(--background-color)}.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236c757d' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center;padding-right:2.5rem}.form-input.is-invalid,.form-select.is-invalid{border-color:#dc3545}.form-input.is-invalid:focus,.form-select.is-invalid:focus{box-shadow:0 0 0 3px #dc354526}.form-error{display:block;margin-top:.25rem;font-size:.75rem;color:#dc3545}.badge{display:inline-flex;align-items:center;padding:.25rem .75rem;font-size:.75rem;font-weight:600;border-radius:50%;line-height:1}.badge-primary{background-color:#e7f1ff;color:#0d6efd}.badge-success{background-color:#1987541a;color:#198754}.badge-danger{background-color:#dc35451a;color:#dc3545}.badge-warning{background-color:#ffc1071a;color:#ffc107}.section{padding:4rem 1.5rem}@media (max-width: 768px){.section{padding:2.5rem 1rem}}.section-header{text-align:center;margin-bottom:2.5rem}.section-header h2{font-size:2rem;font-weight:700;margin-bottom:1rem}@media (max-width: 768px){.section-header h2{font-size:1.5rem}}.section-header p{font-size:1.125rem;color:var(--text-light);max-width:640px;margin:0 auto}*{box-sizing:border-box;margin:0;padding:0}body,.light-theme{--primary-color: #0d6efd;--success-color: #198754;--danger-color: #dc3545;--warning-color: #ffc107;--background-color: #f8f9fa;--surface-color: #ffffff;--text-color: #212529;--text-light: #6c757d;--border-color: #dee2e6;background-color:var(--background-color);color:var(--text-color);transition:background-color .3s,color .3s}.dark-theme{--primary-color: #0d6efd;--success-color: #20c997;--danger-color: #dc3545;--warning-color: #ffc107;--background-color: #121212;--surface-color: #1e1e1e;--text-color: #e9ecef;--text-light: #adb5bd;--border-color: #343a40}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:1rem;line-height:1.6;background-color:var(--background-color);color:var(--text-color);padding-bottom:5rem;overflow-x:hidden}.container{max-width:960px;margin:2rem auto;padding:1.5rem}@media (max-width: 768px){.container{margin:1rem auto;padding:1rem}}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.25;margin-bottom:1rem}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}a{color:var(--primary-color);text-decoration:none;transition:color .15s ease-in-out}a:hover{color:#0b5ed7}.text-center{text-align:center}.text-muted{color:var(--text-light)}.text-sm{font-size:.875rem}.text-xs{font-size:.75rem}.text-lg{font-size:1.25rem}.mt-1{margin-top:.25rem}.mt-2{margin-top:.5rem}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.mt-8{margin-top:2rem}.mb-1{margin-bottom:.25rem}.mb-2{margin-bottom:.5rem}.mb-4{margin-bottom:1rem}.mb-6{margin-bottom:1.5rem}.mb-8{margin-bottom:2rem}