:root{--primary-color: #FF6B35;--primary-dark: #E85D2C;--primary-light: #FF8C5F;--secondary-color: #C0392B;--secondary-dark: #A93226;--secondary-light: #D65548;--neutral-dark: #333333;--neutral-medium: #666666;--neutral-light: #EEEEEE;--white: #FFFFFF;--box-shadow: 0 4px 6px rgba(0, 0, 0, .1);--border-radius: 8px;--transition: all .3s ease}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:var(--neutral-dark);background-color:var(--neutral-light);margin:0;padding:0;line-height:1.5}.auth-wrapper{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem}.auth-card{width:100%;max-width:480px;background-color:var(--white);border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:2rem;animation:fadeIn .5s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.auth-header{text-align:center;margin-bottom:2rem}.auth-header h1{color:var(--secondary-dark);font-size:1.8rem;margin-bottom:.5rem}.auth-description{color:var(--neutral-medium);font-size:.9rem;margin-bottom:1.5rem;line-height:1.5}.form-group{margin-bottom:1.5rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--neutral-dark)}.form-control{width:100%;padding:.75rem 1rem;font-size:1rem;line-height:1.5;border:1px solid var(--neutral-light);border-radius:var(--border-radius);transition:var(--transition)}.form-control:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px var(--primary-light)}.btn{display:inline-block;font-weight:500;text-align:center;white-space:nowrap;vertical-align:middle;-webkit-user-select:none;-moz-user-select:none;user-select:none;border:1px solid transparent;padding:.75rem 1.5rem;font-size:1rem;line-height:1.5;border-radius:var(--border-radius);transition:var(--transition);cursor:pointer}.btn-primary{color:var(--white);background-color:var(--primary-color);border-color:var(--primary-color)}.btn-primary:hover{background-color:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-1px)}.btn-block{display:block;width:100%}.alert{position:relative;padding:1rem;margin-bottom:1rem;border:1px solid transparent;border-radius:var(--border-radius)}.alert-success{color:#155724;background-color:#d4edda;border-color:#c3e6cb}.alert-danger{color:var(--secondary-dark);background-color:#f8d7da;border-color:#f5c6cb}.invalid-feedback{display:block;width:100%;margin-top:.25rem;font-size:.875rem;color:var(--secondary-color);animation:shake .5s ease}@keyframes shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-5px)}40%,80%{transform:translate(5px)}}.form-actions{display:flex;justify-content:flex-end;margin-top:1.5rem}@media (max-width: 576px){.auth-card{padding:1.5rem}.auth-header h1{font-size:1.5rem}.form-group{margin-bottom:1rem}}