:root{--primary-color:#4e73df;--sidebar-bg:#1a1d35}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,var(--sidebar-bg) 0%,var(--primary-color) 100%);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.login-container{background:white;border-radius:16px;box-shadow:0 10px 40px rgba(0,0,0,.2);max-width:450px;width:100%;padding:1rem 1rem}.logo{text-align:center;margin-bottom:2rem}.logo i{font-size:3.5rem;color:var(--primary-color)}.logo h1{font-size:1.75rem;font-weight:700;color:#2c3e50;margin-top:1rem}.logo p{color:#858796;font-size:.9rem;margin-top:.5rem}.form-group{margin-bottom:1.5rem}.form-label{font-weight:500;color:#2c3e50;margin-bottom:.5rem;font-size:.9rem}.form-control{padding:.75rem 1rem;border:1px solid #e3e6f0;border-radius:8px;font-size:.95rem;transition:all .3s}.form-control:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(78,115,223,.1);outline:none}.input-group{position:relative}.input-group i{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:#858796;font-size:1.1rem}.input-group .form-control{padding-left:3rem}.password-toggle{position:absolute;right:3rem;top:50%;transform:translateY(-50%);background:none;border:none;color:#858796;cursor:pointer;font-size:1.1rem}.password-toggle:hover{color:var(--primary-color)}.btn-login{background:var(--primary-color);color:white;border:none;padding:.85rem;border-radius:8px;font-weight:600;font-size:.95rem;width:100%;transition:all .3s;margin-top:1rem}.btn-login:hover{background:#2e59d9;transform:translateY(-2px);box-shadow:0 4px 12px rgba(78,115,223,.3)}.form-check{margin:1.25rem 0}.form-check-label{color:#5a5c69;font-size:.9rem}.forgot-link{text-align:center;margin-top:1.5rem}.forgot-link a{color:var(--primary-color);text-decoration:none;font-size:.9rem}.forgot-link a:hover{text-decoration:underline}.divider{text-align:center;margin:1.5rem 0;position:relative;color:#858796;font-size:.85rem}.divider::before,.divider::after{content:'';position:absolute;top:50%;width:45%;height:1px;background:#e3e6f0}.divider::before{left:0}.divider::after{right:0}.register-link{text-align:center;margin-top:1rem;padding-top:1rem;border-top:1px solid #e3e6f0}.register-link p{color:#5a5c69;font-size:.9rem;margin:0}.register-link a{color:var(--primary-color);text-decoration:none;font-weight:600}.register-link a:hover{text-decoration:underline}@media (max-width:576px){.login-container{padding:2rem 1.5rem}.logo h1{font-size:1.5rem}}