:root{--cel-blue:#0066b3;--cel-dark-blue:#004a82;--cel-green:#30b700;--cel-red:#cb333b;--cel-tan:wheat;--bg-light:#f5f7fa;--bg-gray:#e2e8f0;--bg-white:#fff;--text-dark:#1a202c;--text-gray:#718096;--text-light:#a0aec0;--border-color:#e2e8f0;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-md:0 4px 6px rgba(0,0,0,.1);--shadow-lg:0 10px 15px rgba(0,0,0,.1);--transition-fast:0.15s ease;--transition-normal:0.3s ease;--spacing-xs:4px;--spacing-sm:8px;--spacing-md:16px;--spacing-lg:24px;--spacing-xl:32px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:Helvetica Neue,Helvetica,Arial,sans-serif;color:var(--text-dark);background-color:var(--bg-light);line-height:1.5;min-height:100vh}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.25}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}p{margin-bottom:var(--spacing-md)}a{color:var(--cel-blue);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--cel-dark-blue);text-decoration:underline}input,select,textarea{font-family:inherit;font-size:1rem}input[type=email],input[type=password],input[type=text],select,textarea{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:var(--radius-md);background-color:var(--bg-white);color:var(--text-dark);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--cel-blue);box-shadow:0 0 0 3px rgba(0,102,179,.1)}button{font-family:inherit;font-size:.875rem;font-weight:500;padding:10px 20px;border:none;border-radius:var(--radius-md);cursor:pointer;transition:background-color var(--transition-fast),transform var(--transition-fast)}button:active{transform:scale(.98)}button:disabled{opacity:.6;cursor:not-allowed}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}