body{min-height:100vh;margin:0;padding:0}.gradient-bg{background:linear-gradient(#2654a1 10%,#2654a1 47%,#4989c2 73%,#42abdc 100%);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{background:#fff;border-radius:16px;width:100%;max-width:1080px;padding:40px;box-shadow:0 8px 32px rgba(0,0,0,.1)}.login-title{color:#2654a1;margin-bottom:10px;font-weight:700}.login-subtitle{color:#6c757d;margin-bottom:30px}.form-label{color:#333;margin-bottom:8px;font-weight:600}.form-control:focus{border-color:#42abdc;box-shadow:0 0 0 .2rem rgba(66,171,220,.25)}.btn-login{background:linear-gradient(135deg,#498bc2 0%,#42abdc 100%);border:none;padding:12px;font-weight:600;transition:transform .2s}.btn-login:hover{background:linear-gradient(135deg,#3a7aad 0%,#3899c7 100%);transform:translateY(-2px)}.captcha-container{align-items:center;gap:10px;margin-bottom:20px;display:flex}.captcha-box{letter-spacing:8px;color:#265441;-webkit-user-select:none;-moz-user-select:none;user-select:none;text-align:center;background:linear-gradient(135deg,#f8f9fa 0%,#e9ecef 100%);border:2px solid #dee2e6;border-radius:8px;flex:1;padding:12px 20px;font-family:Courier New,monospace;font-size:24px;font-weight:700;-webkit-text-decoration:line-through rgba(0,0,0,.2);text-decoration:line-through rgba(0,0,0,.2)}.alert{border-radius:8px;margin-bottom:20px}.forgot-password{color:#42abdc;font-size:14px;text-decoration:none}.forgot-password:hover{text-decoration:underline}@media (max-width:991px){.gradient-bg{padding:15px}.login-card{border-radius:12px;padding:24px}.login-title{margin-bottom:8px;font-size:24px}.login-subtitle{margin-bottom:24px;font-size:14px}.form-label{font-size:14px}.captcha-box{letter-spacing:4px;padding:10px 12px;font-size:18px}.btn-login{padding:12px;font-size:16px}.forgot-password{font-size:13px}.img-logo{max-width:100%;height:auto;margin:0 auto;display:block}.img-model{display:none}}@media (max-width:480px){.gradient-bg{padding:10px}.login-card{padding:20px}.login-title{font-size:20px}.login-subtitle{margin-bottom:20px;font-size:13px}.captcha-container{gap:8px}.captcha-box{letter-spacing:3px;padding:8px 10px;font-size:16px}.img-logo{max-width:100%;height:auto;margin:0 auto;display:block}.img-model{display:none}}