* {margin: 0;padding: 0;box-sizing: border-box;}

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            height: 100vh;            
            background: linear-gradient(135deg, rgba(0,0,0,0.38), rgba(0,0,0,0.38)), url('../image/background.jpg');
            background-repeat: no-repeat;            
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .login-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            width: 100%;
            max-width: 450px;
            transform: translateY(0);
            animation: slideIn 0.8s ease-out;
        }

        @keyframes slideIn {
            from {transform: translateY(-50px);opacity: 0;}
            to {transform: translateY(0);opacity: 1;}
        }

        .login-header {text-align: center;margin-bottom: 30px;}
        .login-header h1 {color: #333;font-size: 2.2rem;margin-bottom: 10px;font-weight: 600;}
        .login-header p {color: #666;font-size: 1rem;}

        .form-group {margin-bottom: 25px;position: relative;}
        .form-group label {display: block;color: #333;font-weight: 500;margin-bottom: 8px;font-size: 0.95rem;}
        .form-group input {width: 100%;padding: 15px 20px;border: 2px solid #e0e0e0;border-radius: 12px;font-size: 1rem;transition: all 0.3s ease;background: #f9f9f9;}
        .form-group input:focus {outline: none;border-color: #4CAF50;background: white;box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);}
        .form-group input::placeholder {color: #999;}

        .btn-login {
            width: 100%;
            padding: 15px;
            background: linear-gradient(45deg, #fda41f, #e1dd2b);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .btn-login:hover {transform: translateY(-2px);box-shadow: 0 8px 20px rgba(76, 175, 80, 0.4);}
        .btn-login:active {transform: translateY(0);}

        .login-footer {text-align: center;margin-top: 25px;padding-top: 20px;border-top: 1px solid #e0e0e0;}
        .login-footer a {color: #4CAF50;text-decoration: none;font-size: 0.9rem;transition: color 0.3s ease;}
        .login-footer a:hover {color: #45a049;}

        .alert {
            padding: 12px;
            margin-bottom: 20px;
            border-radius: 8px;
            font-size: 0.95rem;
        }

        .alert-error {
            background-color: #f8d7da;
            border: 1px solid #f5c6cb;
            color: #721c24;
        }

        .alert-success {
            background-color: #d4edda;
            border: 1px solid #c3e6cb;
            color: #155724;
        }

        /* Responsividade Mobile */
        @media (max-width: 768px) {
            body {padding: 20px;background-attachment: scroll;}
            .login-container {padding: 30px 25px;margin: 0 10px;border-radius: 15px;}
            .login-header h1 {font-size: 1.8rem;}
            .form-group input {
                padding: 12px 15px;
                font-size: 16px;
            }
            .btn-login {padding: 12px;font-size: 1rem;}
        }

        @media (max-width: 480px) {
            .login-container {padding: 25px 20px;}
            .login-header h1 {font-size: 1.6rem;}
        }

        .btn-login.loading {pointer-events: none;opacity: 0.7;position: relative;}
        .btn-login.loading::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            border: 2px solid transparent;
            border-top: 2px solid white;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        @keyframes spin {
            0% { transform: translate(-50%, -50%) rotate(0deg); }
            100% { transform: translate(-50%, -50%) rotate(360deg); }
        }