.signin-modal{z-index:1060}.signin-modal .modal-content{border-radius:16px;overflow:hidden}.signin-modal .modal-header{background:linear-gradient(135deg,#dc3545,#c82333);color:white}.signin-modal .modal-header .btn-close{filter:invert(1)}.otp-input{width:50px;height:50px;border:2px solid #dee2e6;border-radius:8px;text-align:center;font-size:1.2rem;font-weight:700;transition:all .3s ease}.otp-input:focus{border-color:#dc3545;box-shadow:0 0 0 .2rem rgba(220,53,69,.25);outline:none}.otp-input.filled{border-color:#28a745;background-color:#f8fff9}.country-selector{min-width:120px;border-right:none}.country-selector:focus{border-color:#dc3545;box-shadow:0 0 0 .2rem rgba(220,53,69,.25)}.phone-input{border-left:none}.phone-input:focus{border-color:#dc3545;box-shadow:0 0 0 .2rem rgba(220,53,69,.25)}.btn-loading{position:relative;pointer-events:none}.btn-loading .spinner-border-sm{width:1rem;height:1rem}.step-transition{animation:slideIn .3s ease-in-out}@keyframes slideIn{0%{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}@media (max-width:576px){.signin-modal .modal-dialog{margin:1rem}.otp-input{width:45px;height:45px;font-size:1rem}.signin-modal .modal-content{border-radius:12px}}.btn-signin{background:linear-gradient(135deg,#dc3545,#c82333);border:none;border-radius:8px;font-weight:600;padding:12px 24px;transition:all .3s ease}.btn-signin:hover{background:linear-gradient(135deg,#c82333,#a71e2a);transform:translateY(-1px);box-shadow:0 4px 12px rgba(220,53,69,.3)}.btn-signin:disabled{background:#6c757d;transform:none;box-shadow:none}.form-control.is-invalid{border-color:#dc3545;box-shadow:0 0 0 .2rem rgba(220,53,69,.25)}.form-control.is-valid{border-color:#28a745;box-shadow:0 0 0 .2rem rgba(40,167,69,.25)}.alert-danger{background-color:#f8d7da;border-color:#f5c6cb;color:#721c24;border-radius:8px;font-size:.9rem}.btn-link{color:#dc3545;font-weight:500;text-decoration:none}.btn-link:hover{color:#c82333;text-decoration:underline}.success-checkmark{color:#28a745}.error-icon,.success-checkmark{font-size:2rem;margin-bottom:1rem}.error-icon{color:#dc3545}